CN113143172B

CN113143172B - Medical endoscope capable of bending and steering by 360 degrees

Info

Publication number: CN113143172B
Application number: CN202110229103.5A
Authority: CN
Inventors: 黎文富; 蒙均; 郭超; 张广平; 梁耀; 向雨薇
Original assignee: Jietai Medical Shenzhen Co ltd
Current assignee: Jietai Medical Shenzhen Co ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2022-10-14
Anticipated expiration: 2041-03-02
Also published as: CN113143172A

Abstract

The invention is suitable for the technical field of medical instruments, and provides a medical endoscope capable of bending and steering by 360 degrees, which comprises a host, a probe rotatably installed on the host, a steering device rotatably installed on the host and used for controlling the rotation angle of the probe, and a locking device, wherein the locking device comprises a fixed seat fixedly installed in the host and a locking assembly installed on the steering device; the locking assembly is provided with an operating part positioned outside the main machine and a locking piece positioned in the main machine, and the locking piece can be switched between a locking state of locking the rotation angle of the steering device by matching with the fixed seat and a releasing state of allowing the steering device to rotate. The medical endoscope capable of bending and steering by 360 degrees provided by the embodiment of the invention can realize the locking of the steering device and the rotation angle of the probe, thereby effectively improving the detection efficiency and accuracy of the affected part detection by a doctor using the medical endoscope capable of bending and steering by 360 degrees, having strong practicability and being convenient for popularization.

Description

Medical endoscope capable of bending and steering by 360 degrees

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a medical endoscope capable of bending and steering 360 degrees.

Background

An endoscope is a tube equipped with a light that can enter the stomach orally or through other natural orifices. Since a lesion which cannot be displayed by an X-ray can be seen by an endoscope, it is very useful for a doctor. During detection, a doctor generally adjusts the observation angle of the lens through operation components such as a rocker and an operation knob. However, the conventional endoscope cannot be fixed after the angle is adjusted, and a doctor needs to manually control the lens angle within the observation range. Furthermore, some endoscopes may rebound when the physician looses his or her hands, causing damage to the tissues of the patient's organs. This results in that, in the whole detection process, the doctor needs to always place the hand on the operation part of the endoscope, and cannot perform other operations, thereby resulting in low detection efficiency and detection accuracy.

Disclosure of Invention

The invention aims to provide a medical endoscope capable of bending and steering by 360 degrees, and aims to solve the technical problems of low endoscope detection efficiency and low detection accuracy.

The medical endoscope capable of bending and steering by 360 degrees comprises a host, a probe rotatably mounted on the host, a steering device rotatably mounted on the host and used for controlling the rotation angle of the probe, and a locking device, wherein the locking device comprises a fixed seat fixedly mounted in the host and a locking assembly mounted on the steering device; the locking assembly is provided with an operating part positioned outside the main machine and a locking piece positioned in the main machine, and the locking piece can be switched between a locking state of locking the rotation angle of the steering device by matching with the fixed seat and a releasing state of allowing the steering device to rotate.

Further, the locking assembly comprises a telescopic mechanism which is fixedly arranged on the steering device and provided with the operation part, and the locking piece is arranged on the telescopic end of the telescopic mechanism.

Furthermore, the steering device is provided with a through hole which penetrates through the steering device along a first direction, and the telescopic mechanism is a pressing type telescopic locking mechanism and is positioned in the through hole.

Furthermore, the pressing type telescopic locking mechanism comprises a guide piece fixedly arranged in the through hole, a pushing piece movably arranged in the guide piece along a first direction, and an elastic rotating assembly movably arranged in the through hole, wherein the locking piece is connected to one end, close to the fixed seat, of the elastic rotating assembly;

the elastic rotating assembly comprises a rotating piece and an elastic piece limited between the rotating piece and the locking piece, and the rotating piece has the freedom degree of rotating around the axial direction of the rotating piece and can be alternately switched between a locking position and a releasing position; the pushing piece is used for pushing the elastic rotating assembly to move relative to the guide piece along a first direction so as to realize the switching of the rotating piece between the locking position and the releasing position by matching with the guide piece; and a locking structure used for limiting the rotating piece at the locking position is formed at the bottom of the guide piece.

Furthermore, the locking piece comprises a connecting part which extends into the through hole and is connected with the elastic piece, and a braking part which is used for being connected with the fixed seat.

Further, the guide piece comprises a guide sleeve fixedly arranged in the through hole and an elastic cap used for closing the top opening of the guide sleeve; the pushing piece is located in a cavity defined by the guide sleeve, and the top of the pushing piece extends into a deformation area of the elastic cap.

Further, a flared part for accommodating the guide sleeve is formed at the top of the through hole, the diameter of the flared part is larger than that of the main body of the through hole, and a step surface for limiting the insertion depth of the guide sleeve is formed between the flared part and the main body of the through hole.

Further, the steering device comprises a rotating body rotatably mounted on the main machine and a rocker formed on the outer wall of the rotating body and extending radially outwards, all or part of the rocker is exposed outside the main machine, and the first direction is the radial direction of the rocker.

Furthermore, the rotator includes that the cavity and the open ball of bottom lack the portion to and connect in the annular portion of ball lack portion bottom, be formed with the mount pad that is used for connecting the haulage rope on the outer wall of annular portion, the top of fixing base extends to in the cavity that the rotator encloses.

Furthermore, the top of fixing base is formed with the first arcwall face that the segment of a sphere portion concentric arrangement sets up, the locking piece has with the second arcwall face of first arcwall face looks adaptation.

Compared with the prior art, the invention has the technical effects that: the medical endoscope capable of bending and steering by 360 degrees provided by the embodiment of the invention is additionally provided with the locking device capable of locking the rotation angle of the steering device, so that when a doctor uses the endoscope to detect a certain position for a long time, the rotation angle of the steering device can be locked by the locking device, and the rotation angle of the probe is further locked, so that the doctor can move hands away from the steering device to perform other operations, the detection efficiency and accuracy of the doctor using the endoscope to detect an affected part are effectively improved, the medical endoscope is strong in practicability and convenient to popularize.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a medical endoscope capable of 360-degree bending and steering according to an embodiment of the present invention, in which a probe is not shown;

FIG. 2 is a schematic cross-sectional view of a medical endoscope capable of 360 degree bending and steering according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of the push type retractable locking mechanism and the locking member of FIG. 2;

FIG. 4 is a schematic view of the structure of the pushing member and the rotating member of FIG. 3;

FIG. 5 is a schematic view of the guide of FIG. 3;

FIG. 6 is a schematic view of the steering device of FIG. 1, without the pull cord;

FIG. 7 is a cross-sectional structural schematic view of the steering apparatus shown in FIG. 6;

fig. 8 is a schematic sectional view of the fixing base in fig. 2.

Description of the reference numerals:

100. a host; 200. a steering device; 210. a through hole; 220. a flared part; 230. a step surface; 240. a rotating body; 241. a ball segment; 242. an annular portion; 243. a mounting base; 250. a rocker; 260. a hauling rope; 300. a locking device; 310. a fixed seat; 311. a first arc-shaped surface; 320. a push type telescopic locking mechanism; 321. an elastic rotating assembly; 3212. an elastic member; 3213. a rotating member; 3214. a second sliding part; 322. a pusher member; 3221. a first sliding section; 323. a guide member; 3231. a guide sleeve; 3232. an elastic cap; 3233. a first guide portion; 3234. a second guide portion; 3235. a convex portion; 324. a locking structure; 330. a locking member; 331. a connecting portion; 332. a brake section; 333. an extension portion.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1 and 2, in an embodiment of the present invention, a medical endoscope capable of 360-degree bending and steering is provided, including a main unit 100, a probe (not shown) rotatably mounted on the main unit 100, a steering device 200 rotatably mounted on the main unit 100 for controlling a rotation angle of the probe, and a locking device 300. The locking device 300 includes a fixing base 310 fixedly installed in the main body 100, and a locking assembly installed on the steering device 200. The locking assembly has an operating portion located outside the main unit 100 and a locking member 330 located inside the main unit 100. The locking member 330 is switchable between a locking state for locking the rotation angle of the steering device 200 in cooperation with the holder 310 and a releasing state for allowing the rotation of the steering device 200.

Specifically, the locking device 300 in this embodiment may be a retractable locking device for controlling the extension and retraction of the refill, such as a push-type ballpoint pen, or a mechanical locking device. Specifically, a driving mechanism for driving the locking member 330 to switch between the locking state and the releasing state is arranged in the locking assembly, the driving mechanism may be a mechanism similar to a brake cable, or a telescopic mechanism, a rotating mechanism, etc., as long as the above functions are realized, and the locking assembly may be specifically set according to the use requirement. The operation part can be a controller wirelessly or in wired connection with the driving mechanism, such as a control button, a remote controller, a mobile phone, a computer and the like; the driving mechanism may be a pressing portion or an operating handle extending to the outside of the main unit 100.

Initially, the locking member 330 is in a released state, and the locking member 330 is not in contact with the fixed base 310, or the two are in contact with each other but friction between the two is not enough to affect the normal rotation of the steering device 200. During the use, earlier through turning to the turned angle of device 200 control probe, treat that the turned angle of probe has adjusted the back, rethread operating portion makes locking piece 330 switch to the locking state by the release state, locking piece 330 and fixing base 310 closely butt this moment produce stronger frictional force between the two, and the moment accessible locking subassembly of this frictional force transmits to turning to device 200, and then makes turning to device 200 can not take place the position change after the doctor looses one's hand yet to realize turning to device 200 and probe turned angle's locking.

According to the medical endoscope capable of bending and steering by 360 degrees, provided by the embodiment of the invention, the locking device 300 capable of being used for locking the rotation angle of the steering device 200 is additionally arranged, so that when a doctor uses the endoscope to detect a certain position for a long time, the rotation angle of the steering device 200 can be locked by means of the locking device 300, and then the rotation angle of the probe is locked, so that the doctor can move the hand away from the steering device 200 to perform other operations in the period, the detection efficiency and accuracy of the doctor using the endoscope to detect an affected part are effectively improved, the practicability is high, and the popularization is convenient.

In one particular embodiment, the locking assembly includes a telescoping mechanism having an operating portion fixedly mounted to the steering device 200. The locking member 330 is mounted on the telescoping end of the telescoping mechanism.

In this embodiment, the telescopic mechanism may be an electric telescopic mechanism or a manual telescopic mechanism, and may be set according to the use requirement. Generally, when the telescopic mechanism is in the extended state, the locking member 330 is in the locked state, and when the telescopic mechanism is in the retracted state, the locking member 330 is in the released state. By adopting the structure, the locking assembly is simple in structure, stable in performance and convenient to use.

Referring to fig. 2 to 7, in one embodiment, the steering device 200 has a through hole 210 penetrating through itself in a first direction. The telescopic mechanism is a push type telescopic locking mechanism 320 and is located in the through hole 210.

The first direction may be a radial direction of the steering device 200 or another direction in the present embodiment, which is not limited herein. The pressing type retractable locking mechanism 320 may be a mechanism similar to a ball pen for controlling the retraction of the pen refill, or may be a retractable locking mechanism similar to a straight key spring switch, a pressing straight key switch or an outer spring push button switch, which is not limited herein. The pressing portion of the pressing type retractable locking mechanism 320 exposed to the air is an operating portion. When the locking member 330 is used, the state of the locking member 330 can be adjusted by pressing the operation portion. By adopting the structure, the operation is convenient, and the detection result of the endoscope cannot be influenced.

Referring to fig. 3 to 5, in one embodiment, the pressing type retractable locking mechanism 320 includes a guide 323 fixedly installed in the through hole 210, a pushing element 322 movably installed in the guide 323 along a first direction, and an elastic rotating element 321 movably installed in the through hole 210. The locking member 330 is connected to an end of the elastic rotating component 321 close to the fixed base 310.

The elastic rotating assembly 321 includes a rotating member 3213 and an elastic member 3212 limited between the rotating member 3213 and the locking member 330. The rotary member 3213 has a degree of freedom of axial rotation about itself, and is alternately switchable between a locked position and a released position. The pushing member 322 is used for pushing the elastic rotating assembly 321 to move relative to the guiding member 323 along the first direction, so as to cooperate with the guiding member 323 to realize the switching of the rotating member 3213 between the locking position and the releasing position. The bottom of the guide member 323 is formed with a locking structure 324 for limiting the rotation member 3213 in the locked position. The bottom of the guide 323 is the bottom in the view shown in fig. 3, which is also the position of the guide 323 during use.

Specifically, the rotary member 3213 of the present embodiment may have the same or similar structure as the pawl housing of the pressing-type ballpoint pen, the pushing member 322 for engaging with the resilient rotary member 321 may have the same or similar structure as the indexing pawl of the pressing-type ballpoint pen, and the guiding member 323 may have the same or similar structure as the guiding member of the pressing-type ballpoint pen.

For ease of understanding, a specific embodiment is shown in fig. 4 and 5. As shown in fig. 4, the top of the rotating member 3213 has a first tooth-shaped structure, a second sliding portion 3214 protruding outward is formed on the outer wall, and the top surface of the second sliding portion 3214 is an inclined surface; the bottom of the pushing member 322 has a second tooth-shaped structure engaged with the first tooth-shaped structure, and the outer wall thereof is formed with a first sliding portion 3221 protruding outward. As shown in fig. 5, the guiding element 323 has a cylindrical structure for accommodating the pushing element 322 and the rotating element 3213, and a plurality of protrusions 3235 are formed on an inner wall of the cylindrical structure at intervals, a tooth-shaped surface is formed at a bottom of the protrusion 3235, and the locking structure 324 is a bent portion on the tooth-shaped surface. And a second guide portion 3234 for the second sliding portion 3214 to pass through is formed between two adjacent convex portions 3235, and a first guide portion 3233 for the first sliding portion 3221 to pass through is formed on the convex portion 3235, wherein the first guide portion 3233 and the second guide portion 3234 extend along the first direction. Meanwhile, when the first tooth-shaped structure of the rotating member 3213 contacts the tooth-shaped surface on the convex portion 3235, the rotating member can rotate axially around itself under the guidance of the tooth-shaped surface, so as to switch between the locking position and the releasing position. Specifically, when the rotating member 3213 rotates to the locking position, the second sliding portion 3214 engages with the locking structure 324 on the tooth-shaped surface, and is locked at the locking position; when the rotating member 3213 rotates to the releasing position, the second sliding portion 3214 rotates to a position corresponding to the second guiding portion 3234, and the rotating member 3213 can move along the first direction under the pushing of the pushing member 322 or the elastic member 3212.

Of course, the structures of the rotating member 3213, the pushing member 322 and the guide member 323 are not limited to the above structures, and other structures that can perform the same function may be adopted, such as a guide surface for guiding the rotating member 3213 to rotate is formed at the bottom of the pushing member 322.

When the rotation angle of the steering apparatus 200 needs to be fixed, the pushing element 322 is pressed downward, the pushing element 322 pushes the elastic rotating assembly 321 to move inward along the first direction until the locking element 330 moves to the lower side of the locking structure 324 in the guiding element 323, then the rotating element 3213 rotates from the releasing position to the locking position under the guidance of the pushing element 322 or the guiding element 323, then the external force is cancelled, the rotating element 3213 moves upward by a small distance under the action of the elastic element 3212 and then is connected with the locking structure 324 to be fixed at the locking position, at this time, the locking element 330 is in the locking state, and the rotation angle of the steering apparatus 200 is locked.

When the steering apparatus 200 needs to be rotated continuously, the pushing element 322 is pressed downward again, the pushing element 322 pushes the elastic rotating assembly 321 to move downward again to below the locking structure 324, then the rotating element 3213 rotates from the locking position to the releasing position under the guidance of the pushing element 322 or the guiding element 323, then the external force is cancelled, the rotating element 3213 pushes the pushing element 322 to move upward along the first direction to the initial position under the action of the elastic element 3212, at this time, the locking element 330 is switched to the releasing state, and the steering apparatus 200 can rotate normally.

Referring to fig. 3, in one embodiment, the locking member 330 includes a connecting portion 331 extending into the through hole 210 and connected to the elastic member 3212, and a braking portion 332 for connecting to the fixing base 310.

In this embodiment, the connecting portion 331 and the braking portion 332 can be made of different materials, so as to reduce the manufacturing cost of the locking member 330. The connection portion 331 may be connected to or in contact with the elastic member 3212, which is not limited herein.

Further, an outer extension part 333 for preventing the connecting member from being pulled out from the outer end of the through hole 210 is formed on one end of the connecting part 331 away from the elastic member 3212.

Referring to fig. 3 to 5, in one embodiment, the guide 323 includes a guide sleeve 3231 fixedly installed in the through hole 210, and an elastic cap 3232 for closing a top opening of the guide sleeve 3231. The pusher 322 is located within a cavity surrounded by the guide sleeve 3231, and the top of the pusher 322 extends into the deformation region of the resilient cap 3232. The deformation region of the elastic cap 3232 means a range that the elastic cap 3232 can reach in a pressed state. This arrangement is sufficient to allow the push member 322 to be pushed by pushing the resilient cap 3232.

In this embodiment, the elastic cap 3232 may be fixedly connected to the guide sleeve 3231, or may be separately provided on the guide sleeve 3231. When the elastic rotating assembly is used, the pushing piece 322 is pushed by pressing the elastic cap 3232, so that the rotating position of the elastic rotating assembly 321 and the state of the locking piece 330 are adjusted. By adopting the structure, the operation is convenient, and the appearance is beautiful.

Referring to fig. 2 and 7, in one embodiment, a flared portion 220 for accommodating the guide sleeve 3231 is formed at the top of the through hole 210, and the diameter of the flared portion 220 is larger than that of the main body of the through hole 210. Thus, a stepped surface 230 for defining the insertion depth of the guide sleeve 3231 is formed between the bottom of the flared portion 220 and the top of the body of the through-hole 210. By adopting the structure, the guide sleeve 3231 can be inserted and matched with the through hole 210 to fix the relative position between the guide sleeve and the through hole, and the installation and the disassembly are convenient.

Specifically, the flared portion 220 includes a straight hole portion connected to the main body of the through hole 210, and a variable diameter portion connected to the top of the straight hole portion, the variable diameter portion being adapted to the elastic cap 3232, and the straight hole portion being adapted to the guide sleeve 3231.

Referring to fig. 6 and 7, in one embodiment, the steering apparatus 200 includes a rotating body 240 rotatably mounted on the main body 100, and a rocker 250 formed on an outer wall of the rotating body 240 and extending radially outward, wherein all or a portion of the rocker 250 is exposed outside the main body 100, and the first direction is a radial direction of the rocker 250.

In this embodiment, the rotator 240 may be a sphere, a hemisphere, a segment, etc. The rotating body 240 and the rocking bar 250 may be formed in an integrally formed structure to ensure stability of a connection relationship therebetween; and a split structure can be adopted to facilitate maintenance. The first direction is the radial direction of the rocker 250, so that the pressing type telescopic locking mechanism 320 can rotate along with the steering device 200, and an operator can complete the rotation of the rocker 250 and the starting of the pressing type telescopic locking mechanism 320 with one hand.

Referring to fig. 3, 6 and 7, in one embodiment, the rotating body 240 includes a hollow segment 241 with an open bottom, and a ring portion 242 connected to the bottom of the segment 241. The bottom portion is here in the view shown in fig. 7. The annular portion 242 has a mounting seat 243 formed on an outer wall thereof for attaching the pull cord 260. The top of the fixing base 310 extends into the cavity defined by the rotating body 240, as shown in fig. 3. In particular, the pull-cord 260 is used to control the steering of the probe, which is prior art and not described in detail herein.

With this structure, the rotating body 240 has a simple overall structure and requires less material. The top of the fixing base 310 extends into the cavity surrounded by the rotating body 240, so that the structure of the endoscope is more compact and meets the design requirement.

Referring to fig. 3 and 8, in one embodiment, a first arc surface 311 is formed at the top of the fixing base 310 and is concentric with the ball gap 241, and the locking member 330 has a second arc surface matched with the first arc surface 311.

When the locking assembly rotates along with the steering device 200, the second arc-shaped surface on the locking member 330 can be always located in the first arc-shaped surface 311, so that the size of the contact surface between the locking member 330 and the fixed seat 310 in the locking state is not affected by the rotation angle of the steering device 200, and the good locking effect of the locking device 300 is further ensured.

Further, a groove 316 is formed in the middle of the first arc-shaped surface 311. The opening of the groove 316 further increases the contact area of the locking member 330 with the fixing base 310 in the locked state, thereby improving the locking effect of the locking device 300.

Further, the locking member 330 is a sphere having a radius smaller than that of the first arc-shaped surface 311.

The foregoing is considered as illustrative only of the preferred embodiments of the invention, and is not to be construed in any way as limiting the scope of the invention. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are included in the protection scope of the invention based on the explanation here.

Claims

1. A medical endoscope capable of bending and steering by 360 degrees comprises a host machine, a probe rotatably installed on the host machine, and a steering device rotatably installed on the host machine and used for controlling the rotation angle of the probe, and is characterized by further comprising a locking device, wherein the locking device comprises a fixed seat fixedly installed in the host machine and a locking assembly installed on the steering device; the locking assembly is provided with an operating part positioned outside the main machine and a locking piece positioned in the main machine, and the locking piece can be switched between a locking state of locking the rotation angle of the steering device by matching with the fixed seat and a releasing state of allowing the steering device to rotate;

the locking assembly comprises a telescopic mechanism which is fixedly arranged on the steering device and is provided with the operation part, and the locking piece is arranged on the telescopic end of the telescopic mechanism;

the steering device is provided with a through hole which penetrates through the steering device along a first direction, and the telescopic mechanism is a pressing type telescopic locking mechanism and is positioned in the through hole.

2. The medical endoscope with 360 degree bending and steering function of claim 1, wherein the pressing type telescopic locking mechanism comprises a guide member fixedly installed in the through hole, a pushing member movably installed in the guide member along a first direction, and an elastic rotating assembly movably installed in the through hole, the locking member is connected to one end of the elastic rotating assembly close to the fixed base;

3. The medical endoscope capable of 360 degree bend and steering according to claim 2, wherein the locking member comprises a connecting portion extending into the through hole and connected with the elastic member, and a braking portion for connecting with the fixed base.

4. A medical endoscope according to claim 3 and capable of 360 degree bending steering, characterized in that said guiding element includes a guiding sleeve fixedly mounted in said through hole, and an elastic cap for closing the top opening of said guiding sleeve; the pushing piece is located in a cavity defined by the guide sleeve, and the top of the pushing piece extends into a deformation area of the elastic cap.

5. The medical endoscope capable of 360 degree bend turning as claimed in claim 4, wherein the top of said through hole is formed with a flared portion for receiving said guide sleeve, said flared portion having a diameter larger than that of the main body of said through hole, and a stepped surface for defining an insertion depth of said guide sleeve is formed therebetween.

6. The medical endoscope capable of 360 degree bending steering according to any one of claims 1-5, wherein the steering device comprises a rotating body rotatably mounted on the main body, and a rocker formed on an outer wall of the rotating body and extending radially outward, all or a part of the rocker is exposed outside the main body, and the first direction is a radial direction of the rocker.

7. The medical endoscope capable of 360 degree bending steering according to claim 6, wherein the rotating body comprises a hollow spherical segment with an open bottom and a ring part connected to the bottom of the spherical segment, a mounting seat for connecting a traction rope is formed on the outer wall of the ring part, and the top of the mounting seat extends into the cavity surrounded by the rotating body.

8. The medical endoscope with 360 degree bending and steering function as claimed in claim 7, wherein the top of the fixed seat is formed with a first arc-shaped surface concentrically arranged with the ball segment, and the locking member has a second arc-shaped surface matched with the first arc-shaped surface.