Hard tube surgical mirror with changeable viewing angle

Abstract

The utility model relates to a hard tube surgical mirror with variable viewing angles, which comprises an operation part and a hard tube insertion part connected with the operation part, the end part of the hard tube insertion part acquires images, the operation part comprises a shell, two ends of the shell are open, one end opening is connected with the hard tube insertion part, and the other end opening is connected with a connecting device. The operation part comprises a fixed pipe and a movable hose, an adjusting device is further arranged in the shell, the movable hose is rotated by adjusting rotation so as to adjust the angle of the obtained image, and the obtained image is transmitted through a connecting device. The angle of the movable hose is driven to be adjusted by shifting the handle, so that the hard tube surgical mirror can achieve accurate adjustment of the viewing angle in a narrow operation space, the imaging quality and definition of the hard tube mirror are not affected in the adjustment process, the limitation of the hard tube mirror with the fixed viewing angle is overcome, the flexibility and efficiency of endoscopic operation are greatly improved, and the operation cost is reduced. And remarkable technical progress and application value are brought to the fields of medical treatment, industry, scientific research and the like.

Description

Technical Field

[0001] The utility model relates to the field of medical hard tube endoscopes, in particular to a hard tube surgical endoscope with variable viewing angles. Background Art

[0002] A rigid endoscope is an endoscopic device widely used in medical, industrial, and scientific research fields. Its primary function is to guide a lens and light source through a narrow, rigid tube into the human body or other confined spaces, enabling observation and diagnosis of internal structures. In medicine, rigid endoscopes are widely used for endoscopic procedures and examinations, such as gastroscopy, bronchoscopy, cystoscopy, and arthroscopy. In industry, they are often used to inspect the internal structures of pipelines, mechanical equipment, and aerospace vehicles.

[0003] Most rigid endoscopes currently on the market have a fixed viewing angle, which means that their field of view and observation angle are determined during design and manufacturing and cannot be adjusted during use. Although this fixed viewing angle design performs well in many applications, it has certain limitations in some specific situations. For example, in some complex endoscopic operations, a rigid endoscope with a fixed viewing angle may not provide the best observation angle, thus affecting the accuracy and effectiveness of the operation. In addition, a rigid endoscope with a fixed viewing angle requires frequent replacement of rigid endoscopes with different viewing angles when observing from multiple angles and directions, which increases the complexity and time cost of the operation.

[0004] Chinese patent publication number CN204654864U relates to a rigid tube endoscope, comprising an insertion tube, a camera, a light source, and a handle, wherein the camera and the light source are arranged on the end face of the insertion end of the insertion tube, the non-insertion end of the insertion tube is connected to the handle, the insertion tube also includes a bending portion, the bending portion is located on a portion of the insertion tube that can be located in the human body, the handle is provided with a control portion for controlling the bending of the bending portion, the control portion includes an inner ring sleeve and an outer ring sleeve, the outer ring sleeve is engaged with the inner ring sleeve by a thread, the outer ring sleeve can only rotate relative to the handle and around the axis of the handle, the inner ring sleeve can only move axially relative to the handle and along the axis of the insertion tube, the insertion tube includes an inner tube and an outer tube that are elastically sleeved with each other, the non-insertion end of the inner tube is fixedly connected to the inner ring sleeve in the handle, and the non-insertion end of the outer tube is fixedly connected to the handle. The utility model has a simple structure and is easy to use, can be used to examine the patient's body to the maximum extent, and avoid the harm caused to the patient by repeated puncture. The rigid tube endoscope described in the patent has a fixed viewing angle and cannot be adjusted. Images in different viewing directions cannot be observed during use. The angle cannot be adjusted during use, or replacing an endoscope with a different viewing angle is costly and more complicated to operate.

[0005] Chinese Patent Publication No. CN203815418U relates to the field of medical device technology, specifically a medical endoscope device with an ultra-micro motor. This device incorporates a micro-electromechanical system (MEMS) into the endoscope, improving the high-tech content of traditional rigid tube endoscope systems. Shape memory alloys can change the reflective angle of the reflector, automating front-end operation. This new endoscope can observe lateral and rearward directions, which are difficult to see with traditional endoscopes. The variable reflective angle of the reflector provides a wider field of view. The ultra-micro motor, driven by a control system, rotates the reflector, replacing manual rotation of the endoscope tube to achieve a 360-degree view. This not only provides convenience for doctors but, more importantly, avoids accidental damage to human tissue caused by repeated insertion and rotation of the endoscope, significantly reducing patient pain. While this patent utilizes an ultra-micro motor to drive the reflector's rotation to achieve 360-degree inspection, the hardware cost is high and the visual experience is limited. Utility Model Content

[0006] The technical problem to be solved by this utility model is that most rigid surgical scopes have a fixed viewing angle, meaning their field of view and observation angle are determined during design and manufacturing and cannot be adjusted during use. Rigid surgical scopes with fixed viewing angles require frequent replacement with scopes of different viewing angles for multi-angle and multi-directional observation, increasing operational complexity and time costs. To address these shortcomings of the prior art, a rigid surgical scope with a variable viewing angle is provided.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A rigid tube surgical mirror with variable viewing angles is constructed, comprising an operating portion and a rigid tube insertion portion connected to the operating portion, wherein the end of the rigid tube insertion portion acquires an image, the operating portion comprising a shell, the shell being open at both ends and hollow inside, one end of the shell being open and connected to the rigid tube insertion portion, and the other end of the shell being open and connected to a connecting device, the rigid tube operating portion comprising a fixed tube and a movable hose, and characterized in that an adjustment device is further provided in the shell, the adjustment rotation causes the movable hose to rotate to adjust the angle of the acquired image, and the acquired image is transmitted through the connecting device.

[0009] Preferably, the adjustment device includes an adjustment handle and an adjustment ring connected to the adjustment handle. The movable hose is connected to the adjustment ring, and the adjustment ring is rotated by rotating the adjustment handle, thereby adjusting the angle of the movable hose.

[0010] Preferably, the adjustment handle includes a toggle handle and a rotating column connected to the toggle handle, a rotating block is provided at the end of the rotating column, and a driven groove is provided on the adjustment ring corresponding to the rotating block. The rotation of the rotating block drives the driven groove to rotate and causes the adjustment ring to rotate.

[0011] Preferably, the adjustment ring is provided with multiple groups of micro-stacks, and the housing is provided with micro-slots corresponding to the micro-stacks. The adjustment ring is rotated so that the micro-stacks are placed in the micro-slots to adjust the rotation angle.

[0012] Preferably, a knob connecting column is provided in the shell, the adjustment ring is connected to the knob connecting column, a knob limiting column is provided in the knob connecting column, a stop surface is provided on the adjustment ring corresponding to the knob limiting column, and the adjustment handle is basically parallel to the curvature of the shell.

[0013] Preferably, the shell is also provided with at least one set of connection interfaces, through which other medical devices are connected. The connection device includes a plug-in part and a control board, and the image information acquired in the control board is transmitted through the plug-in part. The movable hose has a snake-bone structure.

[0014] Preferably, an instrument channel through hole is provided on the side of the shell, and a recessed portion is provided at the instrument channel through hole. The connection interface is placed at the instrument channel through hole and is connected to other medical devices through the connection interface. The connection interface includes a guide tube inserted into the interior of the shell, and a fixing portion placed in the recessed portion. The connection interface is connected to the shell through the fixing portion and the recessed portion.

[0015] Preferably, a groove is provided on the plug-in part, a first snap ring is provided on the shell corresponding to the groove, a convex ring is also provided on the side of the plug-in part, and a second snap ring is also provided on the shell. The convex ring is placed between the first snap ring and the second snap ring, and the radius of the convex ring is larger than the radius of the first snap ring and the second snap ring.

[0016] Preferably, a movable buckle is provided on the plug-in portion, and the movable buckle includes a fixed end and a movable end, and the movable end faces the side of the convex ring.

[0017] Preferably, the shell includes a left shell and a right shell, the left shell is provided with a buckle, and the right shell is correspondingly provided with a bayonet, and the left shell and the right shell are fixed by the buckle and the bayonet, and two groups of inner bosses are provided on the side of the left shell, and two groups of outer bosses are correspondingly provided on the right shell. When the left shell is connected to the right shell, left and right stopping forces are generated between the outer bosses and the inner bosses, so that the left shell and the right shell cannot move relative to each other in the left and right directions.

[0018] The beneficial effects of the present invention are as follows: by turning the handle to drive the adjustment of the angle of the movable hose, the rigid tube surgical scope can achieve precise adjustment of the viewing angle in a narrow operating space, and the imaging quality and clarity of the rigid tube scope will not be affected during the adjustment process, thereby overcoming the limitations of existing rigid tube scopes with fixed viewing angles, greatly improving the flexibility and efficiency of endoscopic operations, and bringing significant technological progress and application value to the fields of medical care, industry, and scientific research. The electronic rigid tube endoscope system can significantly improve the flexibility and observation range of endoscopic operations. The design of the micro-slot structure allows for soft fixation of commonly used viewing angles, making operation more convenient, providing a larger field of view and more flexible observation angles, thereby improving the accuracy and efficiency of the operation. The design of the instrument channel and the flushing channel allows for the convenient insertion of auxiliary instruments during operation and the flushing of the target area, thereby improving operational efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a rigid tube surgical mirror according to a preferred embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the exploded structure of the operating part of a preferred embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the plug-in portion of a preferred embodiment of the utility model;

[0023] Figure 4 This is another axial perspective structural diagram of the plug-in portion of a preferred embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the axial structure of the left housing of a preferred embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of the axial structure of the right housing of a preferred embodiment of the present utility model;

[0026] Figure 7 This is a schematic diagram of the other axial side structure of the right housing of a preferred embodiment of the utility model

[0027] Figure 8 This is a schematic diagram of the explosion structure of the regulating device of a preferred embodiment of the utility model;

[0028] Figure 9This is a schematic diagram of the three-dimensional structure of the connection interface of a preferred embodiment of the present utility model. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] A preferred embodiment of the present invention is a rigid tube surgical mirror with variable viewing angles; Figure 1 As shown, the operating unit 20 and the rigid tube insertion scope 10 connected to the operating unit form a rigid tube surgical scope. The operating unit comprises a hollow housing 200 with two openings at both ends. The rigid tube insertion scope is connected to one opening, and the other end is connected to a connecting device 202, which is connected to the matching handle through the connecting device, thereby transmitting endoscopic image information collected by the rigid tube insertion scope.

[0031] Specifically, such as Figure 1 As shown, the rigid tube insertion scope 10 includes a fixed tube 100 connected to an opening on one side of the housing, and a flexible hose 101 connected to the fixed tube. The flexible hose extends into the housing and leads to a steel wire connected to the operating unit. Pulling the steel wire rotates the flexible hose to adjust the lens angle. An opening is provided on the side of the housing, connected to an adjustment device 201. The adjustment device is connected to the steel wire leading from the flexible hose. Rotating the adjustment device moves the steel wire, thereby driving the flexible hose to rotate and adjust the lens angle. The flexible hose portion can be designed with a snake-like structure, which can be adjusted to a certain angle and direction. The adjustable angle can reach ±180 degrees, which makes the lens's viewing angle wider.

[0032] Further, if Figure 2As shown, the housing 200 comprises a left housing 2000 and a right housing 2001. The left housing has an opening on its side. An adjustment device 201 is connected to the left housing. The adjustment device 201 includes an adjustment handle 2010 and an adjustment ring 2011 connected to a wire extending from a flexible hose. Turning the adjustment handle rotates the adjustment ring, thereby rotating the wire to adjust the angle of the flexible hose. The right housing 2001 also has a through hole that can be connected to a connection interface 203. The connection interface connects to the instrument channel to form a fixed channel, which can be inserted into other auxiliary instruments for treatment or used as a flushing channel for flushing the target area. The other end of the housing 200 is connected to a plug-in connector 2020. The lower end of the plug-in connector is connected to a control board 2021. The plug-in connector is provided with a connection terminal 2022 connected to the control board for communication with the rigid tube surgical scope.

[0033] Further, if Figure 3-5 and Figure 7 As shown, the plug-in portion 2020 is equipped with multiple sets of connecting terminals. External devices are inserted into the plug-in portion and connected to the connecting terminals to complete communication. The lower end of the plug-in portion is provided with a protruding ring 2024 and a groove 2023. Two sets of snap rings are provided on the side where the left and right shells 2000 and 2001 connect to the connecting device 202. A first snap ring 20005 of the connecting device is provided corresponding to the groove 2023. The protruding ring 2024 is positioned between the first snap ring 20005 and the second snap ring 20004. The first snap ring engages in the groove to secure the connecting device to the shell. The protruding ring between the first and second snap rings prevents the connecting device from being pulled out when the inserted device is removed. The outer wall of the plug-in portion 2020 is provided with two sets of movable snaps 2025. The fixed ends of the movable snaps face the plug-in portion opening, while the movable ends face the protruding rings. When an external device is inserted, they serve as directional guides to determine direction and position, while also providing a certain degree of fixation to prevent loosening during use.

[0034] Further, if Figure 6-7 and Figure 9 As shown, the right housing 2001 has two sets of connection interface through-holes 20011. The connection interfaces are located in these through-holes, and recesses 20012 are provided in these through-holes. The connection components include guide tubes 302 that pass through the through-holes and are located inside the housing, and instrument channels 300 that are located outside the housing. The instrument channels and guide tubes are connected by fixing portions 301, which are located in the recesses and secure the connection interfaces to the right housing. The connection interfaces can be connected to other instruments or other auxiliary devices for operation, and can also be used for flushing the water channel.

[0035] Further, if Figure 5 and Figure 8As shown, a knob connecting post 20006 is provided on the side of the left housing 2000, and an adjustment handle 2010 of the adjustment device 201 is positioned within the knob connecting post. The adjustment handle 2010 comprises a rotating post 20101 positioned within the knob connecting post, and a toggle handle 20100 connected to the rotating post. The toggle handle is positioned on the outer surface of the housing and is curved and substantially parallel to the outer wall of the housing. A rotating block 20102 is positioned on one side of the rotating post, which is inserted into the through hole. The adjustment device also includes an adjustment ring 2011 that rotates with the adjustment handle. The adjustment ring is positioned within the housing and is provided with a driven groove 20111. The driven groove contacts the rotating block and rotates with the rotating block, driving the adjustment ring to rotate. The adjustment ring is also provided with a wire groove 20113. The wire of the movable hose is positioned within the wire groove and, as the rotating ring rotates, the wire moves, thereby adjusting the angle of the movable hose. To facilitate angle adjustment, the inner wall of the knob limit connecting post 20006 is provided with three sets of micro-slots 20008. The adjustment ring is provided with three sets of micro-slots 20112 corresponding to the three sets of micro-slots. When the micro-slots are rotated to the micro-slots, the angle is adjusted to a fixed value. In the present invention, the three sets of angles are set to 0 degrees, 30 degrees, and 70 degrees. Other fixed angles can also be set as needed to facilitate angle adjustment, or angle scales can be provided on the adjustment knob to facilitate angle adjustment. A knob limit ring 20007 is also provided within the knob connecting post. The radius of the knob limit ring is smaller than that of the knob connecting post. The adjustment ring is provided with a contact surface 20110 that contacts the knob limit ring, preventing the adjustment ring from loosening and ensuring more stable adjustment.

[0036] Further, if Figure 5 and Figure 7 As shown, the left housing 2000 is provided with two sets of inner bosses 20003 on its side, and the right housing is provided with two sets of outer bosses 20013 on its side corresponding to the inner bosses. When the left and right housings are connected, a stopping force is generated between the outer and inner bosses, preventing the left and right housings from moving left or right. Furthermore, a buckle 20000 is provided on the left housing, and a corresponding bayonet 20010 is provided on the right housing to achieve a snap-on connection between the left and right housings, allowing for secure connection without the use of screws. An insertion hole 20001 is also provided at the lower end of the left housing, allowing the fixing tube to connect to the insertion hole. Furthermore, two sets of wire slots 20002 are provided within the left housing, into which the wires are placed to prevent swaying and affecting angle adjustment.

[0037] It should be understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A rigid tube surgical scope with variable viewing angles, comprising an operating unit and a rigid tube insertion unit connected to the operating unit, the end of the rigid tube insertion unit capturing an image. The operating unit comprises a housing, the housing being open at both ends and hollow inside, one end of the housing being connected to the rigid tube insertion unit and the other end being connected to a connecting device. The rigid tube insertion unit comprises a fixed tube and a movable flexible tube, characterized in that: An adjusting device is also provided in the shell, and the adjusting rotation causes the movable hose to rotate to adjust the angle of acquiring an image, and transmits the acquired image through the connecting device.

2. The rigid tube surgical scope according to claim 1, characterized in that: The adjusting device includes an adjusting handle and an adjusting ring connected to the adjusting handle. The movable hose is connected to the adjusting ring. The adjusting ring is rotated by rotating the adjusting handle, thereby adjusting the angle of the movable hose.

3. The rigid tube surgical mirror according to claim 2, characterized in that: The adjustment handle includes a toggle handle and a rotating column connected to the toggle handle. A rotating block is provided at the end of the rotating column. A driven groove is provided on the adjustment ring corresponding to the rotating block. The rotating block rotates to drive the driven groove to rotate and thus the adjustment ring rotates.

4. The rigid tube surgical mirror according to claim 3, characterized in that: The adjusting ring is provided with a plurality of groups of micro-stuck columns, and the housing is provided with micro-stuck grooves corresponding to the micro-stuck columns. The adjusting ring is rotated so that the micro-stuck columns are placed in the micro-stuck grooves to adjust the rotation angle.

5. The rigid tube surgical scope according to claim 2, characterized in that: A knob connecting column is provided in the shell, the adjustment ring is connected to the knob connecting column, a knob limiting column is provided in the knob connecting column, a stop surface is provided on the adjustment ring corresponding to the knob limiting column, and the adjustment handle is basically parallel to the curvature of the shell.

6. The rigid tube surgical scope according to any one of claims 1 to 5, characterized in that: The shell is also provided with at least one set of connection interfaces, through which other medical devices are connected. The connection device includes a plug-in part and a control board. The image information obtained in the control board is transmitted through the plug-in part. The movable hose has a snake-bone structure.

7. The rigid tube surgical scope according to claim 6, characterized in that: An instrument channel through hole is provided on the side of the shell, and a recess is provided at the instrument channel through hole. The connection interface is placed at the instrument channel through hole and is connected to other medical devices through the connection interface. The connection interface includes a guide tube inserted into the interior of the shell, and a fixing part placed in the recess. The connection interface is connected to the shell through the fixing part and the recess.

8. The rigid tube surgical scope according to claim 6, characterized in that: A groove is provided on the plug-in part, a first snap ring is provided on the shell corresponding to the groove, a convex ring is also provided on the side of the plug-in part, and a second snap ring is also provided on the shell. The convex ring is placed between the first snap ring and the second snap ring, and the radius of the convex ring is larger than the radius of the first snap ring and the second snap ring.

9. The rigid tube surgical scope according to claim 8, characterized in that: The plug-in portion is provided with a movable buckle, which includes a fixed end and a movable end, and the movable end faces one side of the convex ring.

10. The rigid tube surgical scope according to claim 1, characterized in that: The shell includes a left shell and a right shell, a buckle is provided on the left shell, and a bayonet is correspondingly provided on the right shell, and the left shell and the right shell are fixed by the buckle and the bayonet, two groups of inner convex columns are provided on the side of the left shell, and two groups of outer convex columns are correspondingly provided on the right shell, when the left shell and the right shell are connected, left and right stopping forces are generated between the outer convex columns and the inner convex columns, so that the left shell and the right shell cannot move relative to each other in the left and right directions.

Images