Urethra balloon dilatation device

Abstract

The invention discloses a urethra balloon dilatation device which comprises a holding part and a balloon dilatation part, the hose is connected with the holding part; the hard bending assembly is located at the front end in the hose; a camera hole is formed in the front end of the hard bending assembly; the camera shooting assembly is arranged on the inner side of the front end of the hard bending assembly and corresponds to the position of the camera shooting hole; the expansion bag is located on the outer side of the rear end of the hard bending assembly; the bending adjusting assembly is arranged on the holding part and used for adjusting bending of the hard bending assembly. When the urethra balloon dilatation device is inserted into the urethra, images in the urethra can be collected through the camera shooting assembly. When the urethra balloon dilatation device is inserted into the bent section of the urethra, the hard bent assembly can be adjusted to be bent through the bent adjusting assembly, the hose can smoothly penetrate through the bent section of the urethra, the urethra cannot be damaged, and a false passage is not prone to being formed. When the hose reaches a to-be-expanded area of the urethra, a medium can be injected into the expansion bag, so that the expansion bag is expanded, and the to-be-expanded area is expanded.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a urethral balloon dilator. Background Art

[0002] Benign ureteral stricture is one of the common diseases in the urological system. Usually, a urethral dilator is inserted into the urethra to dilate the urethra. The urethral dilator is made of a metal material. During the process of inserting the urethral dilator into the urethra, due to the presence of a curved section in the urethra, the urethral dilator may damage the urethra or form a false passage.

[0003] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a urethral balloon dilator aiming at the above-mentioned defects of the existing technology, aiming to solve the problem that the urethral dilator inserted into the urethra in the existing technology may damage the urethra or form a false passage.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0006] A urethral balloon dilator, comprising:

[0007] A grip portion;

[0008] A flexible tube, connected to the grip portion;

[0009] A rigid bending assembly, located at the front end inside the flexible tube; a camera hole is formed at the front end of the rigid bending assembly;

[0010] A camera assembly, arranged inside the front end of the rigid bending assembly and corresponding to the position of the camera hole;

[0011] An inflatable balloon, located outside the rear end of the rigid bending assembly;

[0012] A bending adjustment assembly, arranged on the grip portion and used for adjusting the bending of the rigid bending assembly.

[0013] The urethral balloon dilator, wherein the rigid bending assembly comprises: a rotating snake bone structure and a deformable snake bone structure which are connected to each other; the camera assembly is arranged on the rotating snake bone structure, the rotating snake bone structure is connected to the bending adjustment assembly; the inflatable balloon is located outside the deformable snake bone structure; the rotating snake bone structure comprises:

[0014] An installation section, used for installing the camera assembly; a first rotating connection portion is formed at the rear end of the installation section;

[0015] Multiple snake bone segments, with a first rotational connection portion and a second rotational connection portion respectively formed at both ends of the snake bone segment, and the first rotational connection portion and the second rotational connection portion are arranged in a circumferential dislocation along the snake bone segment;

[0016] Wherein, the first rotational connection portion of the installation segment is connected to the second rotational connection portion of the adjacent snake bone segment, and the first rotational connection portion of the snake bone segment is connected to the second rotational connection portion of another snake bone segment;

[0017] The deformable snake bone structure includes:

[0018] A cylinder;

[0019] Wherein, a second rotational connection portion is formed at the front end of the cylinder;

[0020] The second rotational connection portion of the cylinder is connected to the first rotational connection portion of the adjacent snake bone segment;

[0021] A number of first slit groups and a number of second slit groups are formed on the cylinder, the first slit groups and the second slit groups are arranged in an axial stagger along the cylinder, two first slits in the first slit group are respectively located on both sides of the cylinder, two second slits in the second slit group are respectively located on both sides of the cylinder, and the first slits and the second slits are arranged in a circumferential dislocation along the cylinder.

[0022] For the described urethral balloon dilatation device, wherein, 4 ring structures are arranged on the inner sides of the installation segment and each snake bone segment;

[0023] The bending adjustment assembly includes:

[0024] A sphere, arranged in the holding portion;

[0025] A sleeve body, sleeved outside the sphere;

[0026] 4 cord lines, with both ends of the cord lines respectively connecting the ring structure of the installation segment and the sleeve body, and the cord lines passing through the corresponding ring structures.

[0027] For the described urethral balloon dilatation device, wherein, a water outlet hole is formed at the front end of the rigid bending assembly; the urethral balloon dilatation device further includes:

[0028] An infusion tube, arranged in the hose and communicated with the water outlet hole.

[0029] For the described urethral balloon dilatation device, wherein, a first joint is arranged on the holding portion, and the first joint is communicated with the infusion tube.

[0030] For the described urethral balloon dilatation device, wherein, a second joint is arranged on the holding portion; the urethral balloon dilatation device further includes:

[0031] The medium tube is located inside the hose, and both ends of the medium tube communicate with the expansion bladder and the second joint respectively.

[0032] The urethral balloon dilatation device, wherein, the urethral balloon dilatation device further comprises:

[0033] A flexible transparent sleeve that wraps the hose.

[0034] The urethral balloon dilatation device, wherein, the urethral balloon dilatation device further comprises:

[0035] A flexible transparent cap sleeved at the front end of the flexible transparent sleeve;

[0036] A rigid fixing member sleeved at the rear end of the flexible transparent sleeve and connected to the holding portion;

[0037] Wherein, the flexible transparent cap is provided with a through hole, and a puncturing portion is arranged in the through hole, and the puncturing portion is used for puncturing the flexible transparent sleeve and inserting into the infusion tube.

[0038] The urethral balloon dilatation device, wherein, the front end of the flexible transparent cap forms a curved surface.

[0039] The urethral balloon dilatation device, wherein, the imaging assembly comprises: a camera and a light source;

[0040] The urethral balloon dilatation device further comprises:

[0041] A power supply and a controller arranged inside the holding portion;

[0042] A display screen arranged on the holding portion;

[0043] Wherein, the camera, the light source, the power supply and the display screen are all electrically connected to the controller.

[0044] Beneficial effects: When the urethral balloon dilatation device is inserted into the urethra, the imaging assembly can collect images inside the urethra, so as to understand the extension and bending conditions of the urethra. When the urethral balloon dilatation device is inserted into the curved section of the urethra, the rigid bending assembly can be adjusted to bend through the bending adjustment assembly, and the hose can smoothly pass through the curved section of the urethra without damaging the urethra and not easily forming a false passage. When the hose reaches the area to be dilated in the urethra, a medium can be injected into the expansion bladder, so that the expansion bladder expands and dilates the area to be dilated. Description of the Drawings

[0045] Figure 1 It is a schematic structural diagram of the urethral balloon dilatation device in an embodiment of the present invention.

[0046] Figure 2 It is the first cross-sectional view of the urethral balloon dilatation device in the embodiment of the present invention.

[0047] Figure 3 It is the second cross-sectional view of the urethral balloon dilatation device in the embodiment of the present invention.

[0048] Figure 4 It is Figure 3 The enlarged view of part A in

[0049] Figure 5 It is Figure 3 The enlarged view of part B in

[0050] Figure 6 It is Figure 3 The enlarged view of part C in

[0051] Figure 7 It is the cross-sectional view of the urethral balloon dilatation device in the embodiment of the present invention.

[0052] Figure 8 It is the exploded view of the urethral balloon dilatation device in the embodiment of the present invention.

[0053] Figure 9 It is the structural schematic diagram of the front end of the hose in the embodiment of the present invention.

[0054] Figure 10 It is the third cross-sectional view of the urethral balloon dilatation device in the embodiment of the present invention.

[0055] Figure 11 It is the cross-sectional view of the flexible transparent cap in the embodiment of the present invention.

[0056] Figure 12 It is the structural schematic diagram of the rigid bending component in the embodiment of the present invention.

[0057] Figure 13 It is the structural schematic diagram of the installation section in the embodiment of the present invention.

[0058] Figure 14 It is the first structural schematic diagram of the snake bone joint in the embodiment of the present invention.

[0059] Figure 15 It is the second structural schematic diagram of the snake bone joint in the embodiment of the present invention.

[0060] Figure 16 It is the structural schematic diagram of the deformed snake bone structure in the embodiment of the present invention.

[0061] Explanation of reference numerals:

[0062] 10. Holding part; 11. First joint; 12. Second joint; 20. Hose; 30. Rigid bending assembly; 31. Rotating snake bone structure; 311. Installation section; 3111. Camera hole; 3112. Water outlet hole; 312. Snake bone joint; 32. Deformable snake bone structure; 321. Cylinder; 322. First slit group; 323. Second slit group; 33. First rotating connection part; 34. Second rotating connection part; 35. Ring structure; 40. Camera assembly; 41. Camera; 42. Light source; 50. Inflatable balloon; 60. Bending adjustment assembly; 61. Sphere; 62. Sleeve; 63. Cord; 64. Ball seat; 71. Infusion tube; 72. Medium tube; 81. Flexible transparent sleeve; 82. Flexible transparent cap; 83. Rigid fixing part; 91. Power supply; 92. Display screen. Detailed implementation manners

[0063] To make the objectives, technical solutions and advantages of the present invention clearer and more definite, the following further describes the present invention in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only for explaining the present invention and are not used to limit the present invention.

[0064] Please refer to Figures 1 - 16 , some embodiments of a urethral balloon dilatation device provided by the present invention are as follows.

[0065] As Figure 1 , Figure 8 the figure and Figure 12 shown, the urethral balloon dilatation device of the present invention includes:

[0066] Holding part 10;

[0067] Hose 20, connected to the holding part 10;

[0068] Rigid bending assembly 30, located at the front end inside the hose 20; a camera hole 3111 is formed at the front end of the rigid bending assembly 30;

[0069] Camera assembly 40, arranged inside the front end of the rigid bending assembly 30 and corresponding to the position of the camera hole 3111;

[0070] Inflatable balloon 50, located outside the rear end of the rigid bending assembly 30;

[0071] Bending adjustment assembly 60, arranged on the holding part 10 and used to adjust the bending of the rigid bending assembly 30.

[0072] Specifically, the grip portion 10 is designed to be grasped by the hand, while the hose 20 is a flexible tubular structure that is flexible and bendable. The rigid bending assembly 30 has a certain degree of hardness and is capable of bending and deforming. The rigid bending assembly 30 can be assembled with the camera assembly 40 and the expansion bladder 50, thereby protecting the camera assembly 40 from damage and providing support for the expansion of the expansion bladder 50. The bending adjustment assembly 60 can adjust and control the bending of the rigid bending assembly 30.

[0073] When the urethral balloon dilation device is inserted into the urethra, the camera assembly 40 captures images of the interior of the urethra, thereby understanding the extension and curvature of the urethra. Once the urethral balloon dilation device is inserted into the curvature of the urethra, the curvature adjustment assembly 60 can be used to adjust the curvature of the rigid curvature assembly 30, allowing the flexible tube 20 to smoothly pass through the curvature of the urethra without damaging the urethra or forming a false passage. When the flexible tube 20 reaches the area of the urethra to be dilated, a medium can be injected into the expansion bladder 50, causing it to expand and dilate the area to be dilated.

[0074] In a preferred implementation of the embodiment of the present invention, Figure 12 As shown, the hard bending component 30 includes: a rotating snake-bone structure 31 and a deformable snake-bone structure 32 connected to each other; the camera component 40 is arranged on the rotating snake-bone structure 31, and the rotating snake-bone structure 31 is connected to the bending adjustment component 60; the expansion bag 50 is located on the outside of the deformable snake-bone structure 32.

[0075] Specifically, the rigid bending assembly 30 utilizes two serpentine structures: a rotating serpentine structure 31 and a deformable serpentine structure 32. The rotating serpentine structure 31 bends easily by rotating, while the deformable serpentine structure 32 bends when subjected to force. The bend adjustment assembly 60 controls the bending of the rotating serpentine structure 31, making it easy to adjust the orientation of the mounting section 311 of the hose 20. The deformable serpentine structure 32 supports the expansion bladder 50.

[0076] In a preferred implementation of the embodiment of the present invention, Figures 12 - 15 As shown, the rotating snake-bone structure 31 includes:

[0077] The mounting section 311 is used to mount the camera assembly 40 ; a first rotating connection portion 33 is formed at the rear end of the mounting section 311 ;

[0078] A plurality of snake bone segments 312, each having a first rotating connection portion 33 and a second rotating connection portion 34 formed at both ends thereof, wherein the first rotating connection portion 33 and the second rotating connection portion 34 are staggered along the circumference of the snake bone segment 312;

[0079] Wherein, the first rotating connection part 33 of the installation section 311 is connected to the second rotating connection part 34 of the adjacent snake bone joint 312, and the first rotating connection part 33 of the snake bone joint 312 is connected to the second rotating connection part 34 of another snake bone joint 312. The camera hole 3111 is located in the installation section 311.

[0080] Specifically, the front end of the rotating snake bone structure 31 is the installation section 311 for installing the camera assembly 40. The rear end of the rotating snake bone structure 31 is a plurality of snake bone joints 312. The installation section 311 is sequentially rotatably connected to the plurality of snake bone joints 312, and the rotational connection is specifically realized through the rotating connection parts. The rotating connection parts are divided into a first rotating connection part 33 and a second rotating connection part 34, and the first rotating connection part 33 and the second rotating connection part 34 cooperate with each other to realize rotation.

[0081] Each snake bone joint 312 has two first rotating connection parts 33 symmetrically arranged at one end of the snake bone joint 312; each snake bone joint 312 has two second rotating connection parts 34 symmetrically arranged at the other end of the snake bone joint 312. The first rotating connection part 33 and the second rotating connection part 34 on a single snake bone joint 312 are staggered from each other. Specifically, the first rotating connection part 33 and the second rotating connection part 34 on a single snake bone joint 312 are arranged in a circumferential misalignment along the snake bone joint 312, so that the rotation direction of the snake bone joint 312 can be any direction in the horizontal plane (the rotating snake bone structure 31 is perpendicular to the horizontal plane). Since the bending angle of the bending section of the urethra is about 80° - 100°, the rotating snake bone structure 31 only needs to rotate a small angle (for example, an acute angle) to pass through the bending section of the urethra. Through the misalignment of the first rotating connection part 33 and the second rotating connection part 34, the range of the rotation direction of the rotating snake bone structure 31 can be extended to any direction in the horizontal plane. The more the number of snake bone joints 312, the larger the bending angle of the rotating snake bone structure 31. The bending angle of the rotating snake bone structure 31 can be 30° - 60°.

[0082] In a preferred implementation manner of the embodiment of the present invention, as Figure 12 and Figure 16 shown, the deformable snake bone structure 32 includes:

[0083] A cylinder 321;

[0084] Among them, a second rotation connection part 34 is formed at the front end of the cylinder body 321; the second rotation connection part 34 of the cylinder body 321 is connected to the first rotation connection part 33 of the adjacent snake bone joint 312; a plurality of first slit groups 322 and a plurality of second slit groups 323 are formed on the cylinder body 321, the first slit groups 322 and the second slit groups 323 are arranged alternately along the axial direction of the cylinder body 321, two first slits in the first slit group 322 are respectively located on both sides of the cylinder body 321, two second slits in the second slit group 323 are respectively located on both sides of the cylinder body 321, and the first slits and the second slits are arranged out of position along the circumferential direction of the cylinder body 321.

[0085] Specifically, the second rotation connection part 34 at the front end of the cylinder body 321 is rotationally connected to the first rotation connection part 33 of the adjacent snake bone joint 312. There are two slit groups on the cylinder body 321, namely the first slit group 322 and the second slit group 323; there are two symmetrically arranged slits in each slit group, there are two first slits in the first slit group 322, and there are two second slits in the second slit group 323. The first slit group 322 and the second slit group 323 are arranged alternately along the axial direction of the cylinder body 321, and there is a second slit group 323 between two adjacent first slit groups 322, and there is a first slit group 322 between two adjacent second slit groups 323. The first slits and the second slits are arranged out of position along the circumferential direction of the cylinder body 321, so that the cylinder body 321 can be bent in any direction in the horizontal plane (the deformed snake bone structure 32 is perpendicular to the horizontal plane). When the deformed snake bone structure 32 is bent, the first slits and / or the second slits are deformed, and the width of the slits increases or decreases.

[0086] In a preferred implementation manner of the embodiment of the present invention, as Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 、 Figures 13 - 15 shown, 4 ring structures 35 are provided on the inner sides of the installation section 311 and each snake bone joint 312; the bending adjustment assembly 60 includes:

[0087] A sphere 61, arranged on the holding part 10;

[0088] A sleeve 62, sleeved outside the sphere 61;

[0089] 4 cord lines 63, both ends of the cord line 63 are respectively connected to the ring structure 35 of the installation section 311 and the sleeve 62, and the cord line 63 passes through the corresponding ring structure 35.

[0090] Specifically, an accommodation cavity is formed inside the holding part 10, and the bending adjustment assembly is located inside the accommodation cavity. Four ring structures 35 are arranged on the inner side of the installation section 311, and four ring structures 35 are arranged on the inner side of each snake bone joint 312. The positions of the ring structures 35 correspond to the positions of the first rotation connection part 33, or the positions of the ring structures 35 correspond to the positions of the second rotation connection part 34. All the ring structures 35 can form four sequences of ring structures 35, and each sequence of ring structures 35 corresponds to one cord 63. Each cord 63 passes through each of the ring structures 35 in the sequence of ring structures 35 in turn. The four cords 63 are connected to different positions of the sleeve body 62. When the sleeve body 62 is rotated, at least two cords 63 will be driven to move, thereby driving the rotating snake bone structure 31 to bend. The sleeve body 62 can tighten or loosen the cords 63, and the rotating snake bone structure 31 bends towards the direction where the tightened cord 63 is located. The sleeve body 62 can tighten one cord 63 or two cords 63. When the sleeve body 62 is rotated in different directions, the rotating snake bone structure 31 bends in different directions.

[0091] To prevent the cord 63 from interfering with other structures, a hook structure is arranged inside the holding part 10. The hook structure is for the cord 63 to pass through and limits the cord 63. The sphere 61 is arranged on the ball seat 64. The ball seat 64 is placed inside the holding part 10. A groove is formed on the outer side of the ball seat 64, and a wire hole is formed between the groove and the inner wall of the holding part 10 for the cord 63 to pass through and limit the cord 63.

[0092] In a preferred implementation manner of the embodiment of the present invention, as Figure 10 , Figures 12 - 13 shown, a water outlet hole 3112 is formed at the front end of the rigid bending assembly 30; the urethral balloon dilatation device further includes:

[0093] An infusion tube 71, which is arranged inside the flexible tube 20 and is communicated with the water outlet hole 3112.

[0094] Specifically, when the flexible tube 20 is inserted into the urethra, liquid, such as water or physiological saline, etc., can be conveyed into the urethra. The urethra is dilated by the liquid, and the liquid also has a lubricating effect. The liquid in the infusion tube 71 flows out from the water outlet hole 3112 and enters the urethra. The water outlet hole 3112 is located at the installation section 311.

[0095] In a preferred implementation manner of the embodiment of the present invention, as Figure 1 and Figure 8 shown, a first joint 11 is arranged on the holding part 10, and the first joint 11 is communicated with the infusion tube 71.

[0096] Specifically, a first connector 11 is provided on the holding portion 10. The first connector 11 is in communication with the infusion tube 71 and is also in communication with an external reservoir. A one-way valve may be provided on the first connector 11. When the one-way valve is opened, the liquid in the external reservoir enters the urethra through the one-way valve and the infusion tube 71, and the liquid in the infusion tube 71 will not flow back. When the one-way valve is closed, the supply of liquid to the infusion tube 71 is stopped.

[0097] In a preferred implementation manner of the embodiment of the present invention, as Figure 5 、 Figure 8 and Figure 10 shown, a second connector 12 is provided on the holding portion 10. The urethral balloon dilatation device further includes:

[0098] A medium tube 72, which is located inside the flexible tube 20. The two ends of the medium tube 72 are respectively in communication with the expansion balloon 50 and the second connector 12.

[0099] Specifically, the medium tube 72 is in communication with the expansion balloon 50. The medium tube 72 is also in communication with a pump structure, and the pump structure is in communication with an external medium storage. The medium storage stores a medium, and the medium can be water or gas, and the gas can be air. The medium is supplied to or extracted from the medium tube 72 through the pump structure, so as to control the expansion or contraction of the expansion balloon 50.

[0100] In a preferred implementation manner of the embodiment of the present invention, as Figure 8 and Figure 10 shown, the urethral balloon dilatation device further includes:

[0101] A flexible transparent sleeve 81, which wraps the flexible tube 20.

[0102] Specifically, the flexible transparent sleeve 81 is sleeved outside the flexible tube 20. The flexible transparent sleeve 81 can be disposable, and then the flexible tube 20 and the structures inside the flexible tube 20 can be reused, thereby reducing the use cost of the urethral balloon dilatation device. The flexible transparent sleeve 81 can be made of skin-friendly materials. For example, it is made of transparent silica gel. The flexible transparent sleeve 81 has elasticity. Under the expansion of the expansion balloon 50, the flexible transparent sleeve 81 expands accordingly and contacts the area to be dilated in the urethra.

[0103] In a preferred implementation manner of the embodiment of the present invention, as Figure 8 and Figure 11 shown, the urethral balloon dilatation device further includes:

[0104] A flexible transparent cap 82, which is sleeved on the front end of the flexible transparent sleeve 81;

[0105] A rigid fixing member 83, which is sleeved on the rear end of the flexible transparent sleeve 81 and is connected to the holding portion 10;

[0106] Among them, the flexible transparent cap 82 is provided with a through hole, and a puncturing portion is arranged in the through hole, and the puncturing portion is used for puncturing the flexible transparent sleeve 81 and inserting into the infusion tube 71.

[0107] Specifically, in order to fix the front end of the flexible transparent sleeve 81, supported by the rigid bending assembly 30, the front end of the flexible transparent sleeve 81 is clamped between the hose 20 and the flexible transparent cap 82, and the contact between the front end of the flexible transparent sleeve 81 and the inner wall of the urethra can be avoided, thereby reducing the possibility of the flexible transparent sleeve 81 falling off. In order to fix the rear end of the flexible transparent sleeve 81, the rear end of the flexible transparent sleeve 81 is clamped between the holding portion 10 and the rigid fixing member 83. The two ends of the flexible transparent sleeve 81 are fixed by the flexible transparent cap 82 and the rigid fixing member 83. The flexible transparent cap 82 can be for single use.

[0108] The flexible transparent cap 82 is provided with a through hole, and the position of the through hole corresponds to the position of the water outlet hole 3112. The liquid in the infusion tube 71 reaches the urethra through the water outlet hole 3112 and the through hole. A puncturing portion is arranged in the through hole, and the puncturing portion can be used for puncturing the flexible transparent sleeve 81 and can be inserted into the infusion tube 71, so as to facilitate fixing the flexible transparent sleeve 81. The front end of the flexible transparent cap 82 has a larger thickness and a larger hardness, which is convenient for the puncturing portion to puncture the flexible transparent sleeve 81, while the rear end of the flexible transparent cap 82 has a thinner thickness, which is convenient for bending and deforming. Of course, the two can be made of different materials. For example, the front end of the flexible transparent cap 82 can be made of a rigid transparent material, and the rear end of the flexible transparent cap 82 can be made of a flexible transparent material.

[0109] In a preferred implementation manner of the embodiment of the present invention, as Figure 6 shown, the front end of the flexible transparent cap 82 is formed in a curved surface shape.

[0110] Specifically, the outer side of the front end of the flexible transparent cap 82 is formed in a curved surface shape, so that a smaller pressure is formed on the inner wall of the urethra and it is not easy to damage the urethra.

[0111] In a preferred implementation manner of the embodiment of the present invention, as Figure 9 、 Figure 1 and ​ shown, the imaging assembly 40 includes: a camera 41 and a light source 42; the urethral balloon dilatation device further includes:

[0112] a power supply 91 and a controller, arranged inside the holding portion 10;

[0113] a display screen 92, arranged on the holding portion 10;

[0114] Among them, the camera 41, the light source 42, the power supply 91 and the display screen 92 are all electrically connected to the controller.

[0115] Specifically, the camera 41 is used to collect images, and the light source 42 is used to illuminate the interior of the urethra. The power supply 91 is used to provide electrical energy, specifically to supply power to the camera 41, the light source 42, the display screen 92 and the controller. The controller is used to obtain the images collected by the camera 41 and display them on the display screen 92; the controller also controls the light source 42 to emit light. An accommodation cavity is formed inside the holding portion 10. The light source 42 can adopt different structures. For example, the light source 42 includes an optical fiber and a light-emitting element. The light-emitting element can be arranged inside the holding portion 10, and the optical fiber is located inside the flexible tube 20 and is connected to the light-emitting element. Another example is that the light source 42 includes a light-emitting element and a cable. The light-emitting element is located inside the front end of the rigid bending assembly 30, specifically at the installation section 311 of the rotating snake bone structure 31, and the two ends of the cable are respectively connected to the light-emitting element and the controller.

[0116] It should be understood that the application of the present invention is not limited to the above examples. For those of ordinary skill in the art, improvements or changes can be made according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims

1. A urethral balloon dilatation device, characterized in that, Comprising: A holding part; A hose, connected to the holding part; A rigid bending assembly, located at the front end inside the hose; a camera hole is formed at the front end of the rigid bending assembly; A camera assembly, arranged inside the front end of the rigid bending assembly and corresponding to the position of the camera hole; An inflation bladder, located outside the rear end of the rigid bending assembly; A bending adjustment assembly, arranged on the holding part and used for adjusting the bending of the rigid bending assembly.

2. The urethral balloon dilatation device according to claim 1, characterized in that, The rigid bending assembly includes: a rotating snake bone structure and a deformable snake bone structure connected to each other; the camera assembly is arranged on the rotating snake bone structure, and the rotating snake bone structure is connected to the bending adjustment assembly; the inflation bladder is located outside the deformable snake bone structure; the rotating snake bone structure includes: An installation section for installing the camera assembly; a first rotating connection part is formed at the rear end of the installation section; A plurality of snake bone joints, with a first rotating connection part and a second rotating connection part formed at both ends of the snake bone joint respectively, and the first rotating connection part and the second rotating connection part are arranged in a circumferential dislocation along the snake bone joint; Wherein, the first rotating connection part of the installation section is connected to the second rotating connection part of the adjacent snake bone joint, and the first rotating connection part of the snake bone joint is connected to the second rotating connection part of another snake bone joint; The deformable snake bone structure includes: A cylinder; Wherein, a second rotating connection part is formed at the front end of the cylinder; The second rotating connection part of the cylinder is connected to the first rotating connection part of the adjacent snake bone joint; A plurality of first slit groups and a plurality of second slit groups are formed on the cylinder, the first slit groups and the second slit groups are arranged in an axial stagger along the cylinder, two first slits in the first slit group are respectively located on both sides of the cylinder, two second slits in the second slit group are respectively located on both sides of the cylinder, and the first slits and the second slits are arranged in a circumferential dislocation along the cylinder.

3. The urethral balloon dilatation device according to claim 2, wherein 4 ring structures are arranged inside the installation section and each snake bone joint; The bending adjustment assembly includes: A sphere, arranged on the holding part; A sleeve, sleeved outside the sphere; 4 cord lines, with both ends of the cord lines respectively connected to the ring structure of the installation section and the sleeve, and the cord lines pass through the corresponding ring structures.

4. The urethral balloon dilatation device according to claim 1, wherein A water outlet hole is formed at the front end of the rigid bending assembly; the urethral balloon dilator further includes: An infusion tube, arranged inside the hose and communicated with the water outlet hole.

5. The urethral balloon dilatation device according to claim 4, characterized in that, A first joint is arranged on the holding part, and the first joint is communicated with the infusion tube.

6. The urethral balloon dilation device according to claim 4, characterized in that, A second joint is arranged on the holding part, and the urethral balloon dilator further includes: A medium tube, located inside the hose, and both ends of the medium tube are respectively communicated with the inflation bladder and the second joint.

7. The urethral balloon dilatation device according to claim 4, characterized in that, The urethral balloon dilator further includes: A flexible transparent sleeve, wrapping the hose.

8. The urethral balloon dilatation device according to claim 7, characterized in that, The urethral balloon dilator further includes: A flexible transparent cap, sleeved on the front end of the flexible transparent sleeve; A rigid fixing part, sleeved on the rear end of the flexible transparent sleeve and connected to the holding part; Wherein, the flexible transparent cap is provided with a through hole, and a puncturing portion is arranged in the through hole. The puncturing portion is used for puncturing the flexible transparent sleeve and inserting into the infusion tube.

9. The urethral balloon dilation device according to claim 8, characterized in that, The front end of the flexible transparent cap forms a curved surface.

10. The urethral balloon dilatation device according to any one of claims 1 to 9, characterized in that, The imaging assembly includes: a camera and a light source; The urethral balloon dilator further includes: a power supply and a controller, which are arranged inside the holding portion; a display screen, which is arranged on the holding portion; Wherein, the camera, the light source, the power supply and the display screen are all electrically connected to the controller.

Images