CN219270855U - Endoscope - Google Patents

Abstract

The utility model provides an endoscope, which belongs to the technical field of endoscopes, and comprises an operating handle, an adjusting mechanism and an inserting tube, wherein the inserting tube comprises a flexible tube, a PTFE flexible tube and a front end part which are sequentially connected, one end of the flexible tube stretches into the operating handle and is connected with the adjusting mechanism, the adjusting mechanism comprises a first adjusting mechanism and a second adjusting mechanism, the first adjusting mechanism and the second adjusting mechanism are both arranged on the operating handle, the first adjusting mechanism and the second adjusting mechanism are both connected with the PTFE flexible tube and are used for controlling the front end part to rotate and bend, and a camera is arranged at the front end of the front end part; two adjusting mechanisms are adopted to adjust the bending angle and the bending direction of the front end part, so that multi-angle adjustment is realized, and the observation efficiency is improved.

Description

Endoscope

Technical Field

The utility model relates to the technical field of endoscopes, in particular to an endoscope.

Background

The endoscope is a detection instrument integrating the traditional optical, human engineering, precise mechanical, modern electronic, mathematical, software and other technologies, and can enter the stomach through a natural cavity (such as the oral cavity) of a human body or enter the body through other natural channels for examination. Since an X-ray-invisible lesion can be seen by an endoscope, the endoscope plays a very important role in medical diagnosis. The endoscope is composed of a distal end, an insertion tube, an operation portion, and a connection portion. The front end and the insertion tube enter through a natural cavity of a human body, a doctor holds the operation part to operate, the position of the front end of the electronic soft mirror in the human body is controlled, the connecting part is connected with the camera shooting light source system, and an image signal acquired by the front end is transmitted out of an image.

The utility model patent application No. 202023350636.9 discloses a bending control mechanism which is arranged on an operation part of an endoscope and is used for adjusting the bending direction of the bending part of the endoscope, wherein the operation part comprises an operation handle, and the bending control mechanism comprises a bending deflector rod, a winding wheel, a driving rope and a first damping piece, wherein the first damping piece is arranged between the winding wheel and the operation handle in an abutting manner; when the winding wheel rotates to any position, the first damping piece can prevent the winding wheel from rotating relative to the operating handle; the device is provided with the damping piece with a complex structure to enable proper friction force to exist between the winding wheel and the operating handle, so that the winding wheel can be prevented from rotating relative to the operating handle after rotating; however, the whole structure is complex, the cost and the volume are increased when the endoscope is put into a precise instrument endoscope; the device can only adjust the bending part in the left and right directions in the plane of the winding wheel, and a user cannot adjust the bending part to rotate in the circumferential direction.

The utility model patent application number 202011559371.5 discloses an angle-adjustable endoscope, which comprises an insertion tube structure and an adjusting structure for controlling the rotation and bending of the insertion tube structure, wherein the insertion tube structure is connected with the adjusting structure, and the adjusting structure is arranged on a mounting seat and a shell. The adjusting structure comprises a first adjusting structure for adjusting the upper and lower bending of the snake bone and a second adjusting structure for adjusting the left and right angles of the snake bone; the device adopts two adjusting structures to control the angle of the insertion tube snake bone, the angle limiting mechanism of the first adjusting structure has a limiting effect on the angle disc, but the limiting effect on the angle disc is provided with a fixed rotation range, when the second limiting pin touches the angle limiting clamp, the second limiting pin limits the angle, and the angle limiting device can effectively prevent the user from rotating too much, but also limits the bending angle of the adjusting front end part of the user to a certain extent, so that the problem that the requirement on the bending angle under different conditions is difficult to meet exists; the arranged angle positioning mechanism is easy to slide in a mode of encircling and locking the first main shaft, and an operator can make the elastic sheet difficult to realize effective locking on the first main shaft after repeatedly using the angle positioning mechanism, so that the condition of sliding exists; the second adjusting structure is directly provided with a limiting groove in the angle wheel of the insertion tube, and is mutually matched with a limiting pin of the second connecting shaft to limit the rotation angle in the rotation process, so that a user operates the angle wheel of the insertion tube to rotate, and meanwhile, the angle wheel plays a limiting role, acting force directly acts on the angle wheel, abrasion of an internal structure can be accelerated, and the service life of the whole device is prolonged.

In summary, although the endoscope in the prior art has the function of adjusting the angle in multiple directions, the use process is inconvenient due to the defect of the adjusting structure, and the limitation on the bending angle affects the requirements of other situations; and structural design improves the spoilage easily, reduces life, makes the cost increase.

Disclosure of Invention

The utility model provides an endoscope, which comprises an operation handle, an adjusting mechanism and an insertion tube, wherein the insertion tube comprises a flexible tube, a PTFE flexible tube and a front end part which are sequentially connected, one end of the flexible tube stretches into the operation handle and is connected with the adjusting mechanism, the adjusting mechanism comprises a first adjusting mechanism for adjusting the horizontal plane direction angle of the front end part and a second adjusting mechanism for adjusting the circumferential direction angle of the front end part, the first adjusting mechanism and the second adjusting mechanism are both arranged on the operation handle, the first adjusting mechanism and the second adjusting mechanism are both connected with the PTFE flexible tube and are used for controlling the front end part to rotate and bend, the front end of the front end part is provided with a camera, the second adjusting mechanism comprises a hollow rotating shaft and a synchronous knob, the hollow rotating shaft is rotationally connected with the operation handle, the synchronous knob is sleeved on the hollow rotating shaft through interference fit, a steel wire rope for the first adjusting mechanism is arranged inside the hollow rotating shaft in a penetrating way, and the steel wire rope sequentially penetrates through the hollow rotating shaft and the flexible tube and is connected with the PTFE flexible tube.

Preferably, the second adjusting mechanism is arranged at the lower part of the operating handle, a hollow channel is arranged in the hollow rotating shaft and used for threading a cable and a steel wire rope, and the steel wire rope sequentially penetrates through the hollow channel and the flexible pipe and is connected with the PTFE flexible pipe.

Preferably, the cable is arranged at the position of the geometric center line of the hollow rotating shaft, and the steel wire ropes are arranged at two sides of the cable.

Preferably, the hollow rotating shaft and the operating handle are provided with an axial limiting part and a circumferential limiting part for limiting the movement of the hollow rotating shaft, the axial limiting part comprises a first limiting ring and a second limiting ring, the first limiting ring is arranged on the inner wall of the operating handle, and the second limiting ring is arranged on the outer wall of the hollow rotating shaft and is positioned on one side of the first limiting ring far away from the synchronous knob; the circumferential limiting part comprises a first limiting plate and a second limiting plate, the first limiting plate is arranged on the inner wall of the operating handle, and the second limiting plate is arranged on the outer wall of the hollow rotating shaft.

Preferably, the first adjusting mechanism is arranged at the upper part of the operating handle and used for controlling the angle adjustment of the horizontal plane direction of the front end part, and comprises an adjusting base, a damping adjusting device, a rotating handle and two steel wire ropes; the adjusting base is movably arranged in the operating handle, two sides of the adjusting base are respectively connected with one ends of two steel wire ropes, the other ends of the two steel wire ropes are respectively connected with the PTFE flexible pipe, the rotating handle is connected with the adjusting base, and the damping adjusting device is arranged on the adjusting base and used for limiting the adjusting base to rotate.

Preferably, the damping adjusting device comprises an elastic piece, a sleeve and a damping adjusting piece, the adjusting base is provided with a synchronous mandrel, the elastic piece and the sleeve are sequentially sleeved on the synchronous mandrel, and the damping adjusting piece is arranged on an endoscope operating handle and is connected with the sleeve to push the sleeve to extrude the elastic piece.

Preferably, the damping adjusting piece is rotationally connected with the operating handle, one side of the sleeve, which is close to the damping adjusting piece, is provided with an inner sleeve and a plurality of steps, the steps are arranged around the inner sleeve, the steps are all arranged around the same direction from low to high in an inclined mode by taking the inner sleeve as the center, the damping adjusting piece is sleeved on the inner sleeve, a plurality of ladder teeth which are matched with the steps are arranged around the outer wall of the damping adjusting piece, and the damping adjusting piece is provided with a damping adjusting rod.

Preferably, the turning knob is L-shaped and has one end bent to the side of the operating handle.

Preferably, the upper end of the operating handle is provided with a connecting part and a button for controlling the switch of the connecting part, and the connecting part is electrically connected with the camera.

Preferably, the upper end of the operating handle is provided with a working channel inlet, and the working channel inlet is communicated with the inside of the operating handle and the inside of the front end part.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:

the present utility model provides an endoscope which is provided with a plurality of endoscope sections,

1. two adjusting mechanisms are adopted to adjust the bending angle and the bending direction of the front end part, so that multi-angle adjustment is realized, and the observation efficiency is improved;

2. the first adjusting mechanism adopts a damping adjusting device to limit the rotation of the adjusting base, so that after the angle of the front end part in the horizontal direction is adjusted, the position is positioned, and a user is not required to always hold the rotating handle; the method can also prevent the accidental injury to the patient caused by the change of the bending angle of the front end part due to misoperation;

3. the second adjusting mechanism controls the front end part to rotate through rotation, so that the angle of the front end part in the circumferential direction is adjusted, the direction is changed by direct rotation after the front end part is bent, and the limit structure is adopted to prevent the device or a patient from being damaged due to overlarge torsion angle; the device for limiting rotation is arranged at a position outside the rotating handle, so that abrasion is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 3 is a schematic diagram of the assembled structure of the PTFE flexible tube and the steel wire rope of the present utility model;

FIG. 4 is a schematic side view of a first adjustment mechanism of the present utility model;

FIG. 5 is a schematic diagram of an exploded view of a first regulator according to the present utility model;

FIG. 6 is a schematic diagram of an exploded construction of a second adjustment mechanism according to the present utility model;

FIG. 7 is a schematic view of the placement of cables and wire ropes within a hollow channel;

wherein: 1. an operation handle; 2. a first adjustment mechanism; 201. adjusting the base; 2011. synchronizing the mandrel; 202. an elastic member; 203. a sleeve; 2031. a step; 2032. an inner sleeve; 204. damping adjusting piece; 2041. ladder teeth; 2042. damping adjusting rod; 205. rotating the handle;

3. a second adjustment mechanism; 301. a hollow rotating shaft; 3011. a hollow passage; 302. a synchronization knob; 304. a special-shaped hole; 305. an axial limit part; 3051. a first stop collar; 3052. a second limiting ring; 306. a circumferential limit part; 3061. a first limiting plate; 3062. a second limiting plate;

4. a tip portion; 5. a camera; 7. a connection part; 8. a button; 9. a working channel inlet; 10. a wire rope; 11: a PTFE flexible tube; 12: a flexible tube; 13: a cable.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. In the description of the present utility model, it should be understood that the terms "left", "right", "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and "first", "second", etc. do not indicate the importance of the components, and thus are not to be construed as limiting the present utility model. In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific dimensions adopted in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present utility model.

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

Example 1:

as shown in fig. 1 to 3, an endoscope comprises an operation handle 1, an adjusting mechanism and an insertion tube, wherein the insertion tube comprises a flexible tube 12, a PTFE flexible tube 11 and a front end part 4 which are sequentially connected, one end of the flexible tube 12 stretches into the operation handle 1 and is connected with the adjusting mechanism, the adjusting mechanism comprises a first adjusting mechanism 2 for adjusting the angle of the horizontal plane direction of the front end part 4 and a second adjusting mechanism 3 for adjusting the angle of the circumferential direction of the front end part 4, the first adjusting mechanism 2 and the second adjusting mechanism 3 are both arranged on the operation handle 1, the first adjusting mechanism 2 and the second adjusting mechanism 3 are both connected with the PTFE flexible tube 11 and are used for controlling the front end part 4 to rotate and bend, and a camera 5 is arranged at the front end of the front end part 4. The PTFE tube is polytetrafluoroethylene tube, and snake bone can be used for replacing the PTFE tube.

The first adjusting mechanism 2 and the second adjusting mechanism 3 are connected with the PTFE flexible tube 11 and control the front end part 4 to rotate and bend, so that the function of simultaneously realizing angle adjustment on the plane and the circumferential direction on the front end part 4 is achieved, and a user can observe better by using the camera 5.

When in use, the endoscopic front end part 4 and the flexible tube 12 enter the position to be observed from the natural cavity of the human body, and the PTFE flexible tube 11 is controlled by the first adjusting mechanism 2 and the second adjusting mechanism 3, so that the front end part 4 is driven to bend in different directions, the angle adjustment on the plane and the circumferential direction is realized, and the observation efficiency of a user is improved.

Example 2:

as shown in fig. 1 to 7, on the basis of embodiment 1, the second adjusting mechanism 3 comprises a hollow rotating shaft 301 and a synchronous knob 302, the hollow rotating shaft 301 is rotationally connected with the operating handle 1, the synchronous knob 302 is sleeved on the hollow rotating shaft 301 through interference fit, a steel wire rope 10 for the first adjusting mechanism 2 is penetrated inside the hollow rotating shaft 301, and the steel wire rope 10 sequentially penetrates through the hollow rotating shaft 301 and the flexible tube 12 to be connected with the PTFE flexible tube 11.

In the specific implementation process, two steel wire ropes 10 pass through the hollow rotating shaft 301 and are in control connection with the PTFE flexible pipe 11; when the circumferential angle of the front end 4 needs to be adjusted, the synchronous knob 302 is rotated to drive the hollow rotating shaft 301 to rotate relative to the operating handle 1, and the hollow rotating shaft 301 rotates to drive the steel wire rope 10 arranged inside to rotate, so that the PTFE flexible tube 11 is driven to rotate to change the circumferential angle of the front end 4.

Two steel wire ropes 10 of the first adjusting mechanism 2 penetrate through the interior of the PTFE flexible tube 11 and are respectively connected with two sides of one end, close to the camera 5, of the PTFE flexible tube 11, the two steel wire ropes 10 are respectively positioned on two sides of the end part of the PTFE flexible tube 11, when the steel wire ropes 10 on one side are tightened, the PTFE flexible tube 11 is bent towards the stress direction of the side, so that the front end part 4 is bent towards the side, and angle adjustment is realized; when the two steel wire ropes 10 rotate, the PTFE flexible tube 11 rotates along with the steel wire ropes, so that the front end part 4 is driven to rotate, the circumferential adjustment is realized, and the camera 5 can probe a plurality of angles.

In a further embodiment, the second adjusting mechanism 3 is installed at the lower part of the operating handle 1, a hollow channel 3011 is arranged in the hollow rotating shaft 301 for the cable 13 and the steel wire rope 10 to pass through, and the steel wire rope 10 sequentially passes through the hollow channel 3011 and the flexible tube 12 to be connected with the PTFE flexible tube 11.

In the specific implementation process, the cable 13 and the steel wire rope 10 pass through the hollow channel 3011 of the hollow rotating shaft 301 and are in control connection with the PTFE flexible tube 11; when the circumferential angle of the front end part 4 needs to be adjusted, the synchronous knob 302 is rotated to drive the hollow rotating shaft 301 to rotate relative to the operating handle 1, and the hollow rotating shaft 301 rotates to drive the steel wire rope arranged in the hollow channel 3011 to rotate, so that the PTFE flexible tube 11 is driven to rotate to change the circumferential angle of the front end part 4.

In still further embodiments, the hollow passage 3011 includes a cable passage located at a central position of the hollow shaft 301 and a wire rope passage located at an eccentric position of the hollow shaft 301, the cable passage being for passing the cable 13 and the wire rope passage being for passing the wire rope 10.

In a further embodiment, the hollow rotating shaft 301 and the operating handle 1 are provided with an axial limiting portion 305 and a circumferential limiting portion 306 for limiting the movement of the hollow rotating shaft 301, the axial limiting portion 305 comprises a first limiting ring 3051 and a second limiting ring 3052, the first limiting ring 3051 is mounted on the inner wall of the operating handle 1, and the second limiting ring 3052 is mounted on the outer wall of the hollow rotating shaft 301 and is located at one side of the first limiting ring 3051 away from the synchronous knob 302; the circumferential limit portion 306 includes a first limit plate 3061 and a second limit plate 3062, the first limit plate 3061 is mounted on the inner wall of the operating handle 1, and the second limit plate 3062 is mounted on the outer wall of the hollow rotating shaft 301.

The first stop ring 3051 can stop the second stop ring 3052 from moving, so as to prevent the hollow rotating shaft 301 from moving towards the synchronous knob 302; the first stop ring 3051 and the second stop ring 3052 may be replaced with other structures that can block each other, such as an intermittent barrier. The first limiting plate 3061 can block the second limiting plate 3062 from moving, when the hollow rotating shaft 301 rotates along a certain rotating direction, the rotating angle is overlarge, the twisting angle generated by the steel wire rope 10 is overlarge, certain damage is generated to the steel wire rope 10, the PTFE flexible tube 11 and the front end part 4, and the damage to a patient is also possible; the first limiting plate 601 is adopted to block, so that a user cannot operate the device in error, and accidents are prevented.

In a further embodiment, the synchronizing knob 302 is provided with a shaped hole 304, and the synchronizing knob 302 is sleeved on the hollow rotating shaft 301 through the shaped hole 304 in an interference fit manner. The special-shaped hole 304 can be a waist-shaped hole, a rectangular hole, a polygonal hole and the like, and one end of the hollow rotating shaft 301 connected with the synchronous knob 302 is also made into an adaptive special shape so as to achieve the effect that the synchronous knob 302 can drive the hollow rotating shaft to rotate.

The synchronous knob 302 is sleeved on the hollow rotating shaft through the clearance fit of the special-shaped holes, a certain clearance exists, and the effect of driving the hollow rotating shaft can be achieved when the synchronous knob 302 rotates; the gap cannot be too large to prevent the inner wall from completely touching the hollow shaft when the synchronization knob 302 is rotated, resulting in idle rotation.

In a further embodiment, the outer wall of the synchronization knob 302 is provided with a plurality of strip-shaped protrusions.

Example 3:

as shown in fig. 1 to 5, on the basis of embodiment 1 or 2, a first adjusting mechanism 2 is installed at the upper portion of the operation handle 1 for controlling the angle adjustment of the horizontal plane direction of the tip portion 4, the first adjusting mechanism 2 includes an adjusting base 201, a damping adjusting device and a turning knob 205, and two wire ropes 10; the adjusting base 201 is movably arranged in the operating handle 1, two sides of the adjusting base are respectively connected with one ends of two steel wire ropes 10, the other ends of the two steel wire ropes 10 are respectively connected with the PTFE flexible pipe 11, the rotating handle 205 is connected with the adjusting base 201, the damping adjusting device is arranged on the adjusting base 201 and used for limiting the rotation of the adjusting base 201, specifically, before the damping adjusting device is adopted, the rotating handle 205 is used for driving the rotation of the adjusting base 201 without limitation, after the damping adjusting device is adopted, the adjusting base 201 can be prevented from rotating or larger acting force is needed to rotate the adjusting base 201 to a smaller extent, the situation that the rotating of the adjusting base 201 is caused by error collision is prevented, but fine adjustment operation is not influenced by operators; on the other hand, the damping adjustment device is also intended to give the operator a feedback signal during the adjustment of the angle of the tip portion.

The adjusting base 201 is adopted to rotate to drive the steel wire rope 10 to tighten, so that the front end 4 is twisted towards the tightening side to adjust the torsion angle adjustment of the front end 4, the adjusting base 201 drives the adjusting base 201 to rotate towards a certain direction through the rotating handle 205, namely anticlockwise or clockwise, the adjusting base 201 further drives the steel wire rope 10 to drive the PTFE flexible tube 11 and the front end 4 to twist, when the adjusting base 201 needs to be limited to rotate, the adjusting base 201 is limited by adopting the damping adjusting device, the adjusting base 201 is prevented from rotating or can slightly rotate only by needing larger acting force, the position is relatively fixed, and the relative fixation of the torsion angle of the front end is completed.

In a further embodiment, the damping adjustment device includes an elastic member 202, a sleeve 203 and a damping adjustment member 204, the adjustment base 201 is provided with a synchronization mandrel 2011, the elastic member 202 and the sleeve 203 are sequentially sleeved on the synchronization mandrel 2011, and the damping adjustment member 204 is mounted on the endoscope operation handle and connected with the sleeve 203 for pushing the sleeve 203 to squeeze the elastic member 202.

In a specific implementation process, after the device is arranged in an endoscope, two ends of two steel wire ropes 10 are respectively connected with two sides of an adjusting base 201, the other ends of the steel wire ropes 10 are connected with a PTFE flexible tube 11, when a damping adjusting piece 2044 does not push a sleeve 203, an elastic piece 202 is in an extending state, the elastic piece 202 has a tendency of applying pressure towards the adjusting base 201, the adjusting base 201 is not subjected to the pressure of the elastic piece 202, and the device can freely rotate; the user rotates the adjusting base 201 by rotating the handle 5, so that the wire rope 10 on one side is tightened, and the front end 4 is twisted towards one side; adjusting the turning handle 205 changes the turning direction of the adjustment base 201 so that the wire rope 10 on the other side is tightened, thereby twisting the leading end portion 4 toward the other side;

after the adjustment is finished, the sleeve 203 is pushed to move towards the direction of the elastic piece by the damping adjustment piece 204, the elastic piece 202 is gradually compressed, the elastic piece 202 is pressed by the sleeve 203 and then deforms, and the elastic force generated in the deformation process is applied to the adjustment base 201, so that the adjustment base 201 is locked; prevent it from rotating and finish the position fixing.

In a further embodiment, the damping adjustment member 204 is rotatably connected with the endoscope operating handle 1, an inner sleeve 2032 and a plurality of steps 2031 are disposed on one side of the sleeve 203, which is close to the damping adjustment member 204, the steps 2031 are disposed around the inner sleeve 2032, the steps 2031 are all obliquely disposed around the inner sleeve 2032 from low to high in the same direction, the damping adjustment member 204 is sleeved on the inner sleeve 2032, a plurality of ladder teeth 2041 adapted to the steps 2031 are disposed around the outer wall of the damping adjustment member 204, and the damping adjustment member 204 is provided with a damping adjustment lever 2042. In a specific implementation process, after the device is arranged in an endoscope, two ends of two steel wire ropes are respectively connected with two sides of an adjusting base 201, the other ends of the steel wire ropes 10 are connected with PTFE flexible pipes 11, when ladder teeth 2041 of a damping adjusting piece 204 are positioned at the lowest position of a step 2031, the damping adjusting piece 204 does not push a sleeve 203, an elastic piece 202 is in an extending state, the adjusting base 201 is not under the pressure of the elastic piece 202, and the damping adjusting piece can freely rotate; the user rotates the adjusting base 201 by rotating the handle 205, so that the wire rope 10 on one side is tightened, and the front end 4 is twisted towards one side; adjusting the rotation handle 205 changes the rotation direction of the adjustment base 201, so that the wire rope 10 on the other side is tightened, and the tip portion is twisted toward the other side;

after the adjustment is completed, the damping adjustment rod 2042 is rotated, the sleeve 203 is pushed to move towards the elastic piece 202 by the damping adjustment piece 204, namely, the damping adjustment piece 204 is rotated to move towards the direction of the step 2031 from low to high in an inclined manner, the single ladder tooth 2041 and the single step 2031 at the corresponding positions are gradually extruded, the sleeve 203 is gradually pressed against the elastic piece 202 in the process that the lowest position of the step 2031 reaches the highest position of the step 2031, the elastic piece 202 is pressed by the sleeve 203, deformation is generated, and elastic force generated in the deformation process is applied to the adjustment base 201, so that the adjustment base 201 is locked; prevent it from rotating and finish the position fixing.

In a further embodiment, the synchronizing mandrel 2011 is provided with a hollow slot, and one end of the rotating handle 5 sequentially passes through the damping adjustment member 204, the inner sleeve 2032, and the elastic member 202 and is inserted into the hollow slot.

In a further embodiment, the turning handle 205 is L-shaped and has one end bent to the side of the operating handle 1, the damping adjusting member 204 is located above the operating handle 1, one end of the turning handle 205 connected with the adjusting base 201 is located in one direction, the turning handle 205 is L-shaped, and the other end is bent to the side of the operating handle 1, so that the damping adjusting member 204 and the turning handle 205 are not mutually affected when being turned, and the operation is convenient.

Example 4:

as shown in fig. 1 to 7, on the basis of embodiment 1, the upper end of the operation handle 1 is provided with a connection portion 7 and a button 8 for controlling the switching of the connection portion 7, and the connection portion 7 is electrically connected to the camera 5 through a cable 13.

The upper end of the operating handle 1 is provided with a working channel inlet 9, the working channel inlet 9 is communicated with the inside of the operating handle 1 and the inside of the front end part 4, and the channel is used for other medical instruments to enter.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides an endoscope, includes operating handle (1), adjustment mechanism and insert tube, the insert tube is including flexible pipe (12), PTFE flexible pipe (11) and tip (4) that connect gradually, flexible pipe (12) one end stretches into in operating handle (1) and is connected with adjustment mechanism, its characterized in that: the adjusting mechanism comprises a first adjusting mechanism (2) for adjusting the horizontal plane direction angle of the front end part (4) and a second adjusting mechanism (3) for adjusting the circumferential direction angle of the front end part (4), the first adjusting mechanism (2) and the second adjusting mechanism (3) are both arranged on the operating handle (1), the first adjusting mechanism (2) and the second adjusting mechanism (3) are both connected with the PTFE flexible tube (11) and are used for controlling the front end part (4) to rotate and bend, and the front end of the front end part (4) is provided with the camera (5);

the second adjusting mechanism (3) comprises a hollow rotating shaft (301) and a synchronous knob (302), the hollow rotating shaft (301) is rotationally connected with the operating handle (1), the synchronous knob (302) is sleeved on the hollow rotating shaft (301) through interference fit, a steel wire rope (10) used for the first adjusting mechanism (2) inside the hollow rotating shaft (301) penetrates through the hollow rotating shaft (301) and the flexible pipe (12) in sequence, and the steel wire rope (10) is connected with the PTFE flexible pipe (11).

2. An endoscope as defined in claim 1, wherein: the second adjusting mechanism (3) is arranged at the lower part of the operating handle (1), a hollow channel (3011) is formed in the hollow rotating shaft (301) and used for threading a cable (13) and a steel wire rope (10), and the steel wire rope (10) sequentially penetrates through the hollow channel (3011) and the flexible pipe (12) to be connected with the PTFE flexible pipe (11).

3. An endoscope as defined in claim 2, wherein: the cable (13) is arranged at the position of the geometric center line of the hollow rotating shaft (301), and the steel wire ropes (10) are arranged at two sides of the cable (13).

4. An endoscope according to claim 3, wherein: the hollow rotating shaft (301) and the operating handle (1) are provided with an axial limiting part (305) and a circumferential limiting part (306) for limiting the movement of the hollow rotating shaft (301), the axial limiting part (305) comprises a first limiting ring (3051) and a second limiting ring (3052), the first limiting ring (3051) is arranged on the inner wall of the operating handle (1), and the second limiting ring (3052) is arranged on the outer wall of the hollow rotating shaft (301) and is positioned on one side, far away from the synchronous knob (302), of the first limiting ring (3051); the circumferential limiting part (306) comprises a first limiting plate (3061) and a second limiting plate (3062), the first limiting plate (3061) is installed on the inner wall of the operating handle (1), and the second limiting plate (3062) is installed on the outer wall of the hollow rotating shaft (301).

5. An endoscope according to any of claims 1-4 and wherein: the first adjusting mechanism (2) is arranged at the upper part of the operating handle (1) and used for controlling the angle adjustment of the horizontal plane direction of the front end part (4), and the first adjusting mechanism (2) comprises an adjusting base (201), a damping adjusting device, a rotating handle (205) and two steel wire ropes (10); the adjustable base (201) is movably mounted in the operating handle (1) and two sides of the adjustable base are respectively connected with one ends of two steel wire ropes (10), the other ends of the two steel wire ropes (10) are respectively connected with the PTFE flexible pipe (11), the rotary handle (205) is connected with the adjustable base (201), and the damping adjusting device is mounted on the adjustable base (201) and used for limiting the rotation of the adjustable base (201).

6. An endoscope as defined in claim 5, wherein: the damping adjusting device comprises an elastic piece (202), a sleeve (203) and a damping adjusting piece (204), wherein the adjusting base (201) is provided with a synchronous mandrel (2011), the elastic piece (202) and the sleeve (203) are sequentially sleeved on the synchronous mandrel (2011), and the damping adjusting piece (204) is arranged on an endoscope operating handle and connected with the sleeve (203) to push the sleeve (203) to extrude the elastic piece (202).

7. An endoscope as defined in claim 6, wherein: the damping adjusting piece (204) is rotationally connected with the operating handle (1), an inner sleeve (2032) and a plurality of steps (2031) are arranged on one side, close to the damping adjusting piece (204), of the sleeve (203), the steps (2031) are arranged around the inner sleeve (2032), the steps (2031) are all obliquely arranged from low to high in the same direction around the inner sleeve (2032), the damping adjusting piece (204) is sleeved on the inner sleeve (2032), a plurality of ladder teeth (2041) matched with the steps (2031) are arranged on the outer wall of the damping adjusting piece (204) in a surrounding mode, and the damping adjusting piece (204) is provided with the damping adjusting piece (2042).

8. An endoscope as defined in claim 7, wherein: the turning handle (205) is L-shaped and has one end bent to the side of the operating handle (1).

9. An endoscope as defined in claim 8, wherein: the upper end of the operating handle (1) is provided with a connecting part (7) and a button (8) for controlling the switch of the connecting part (7), and the connecting part (7) is electrically connected with the camera (5).

10. An endoscope as defined in claim 9, wherein: the upper end of the operating handle (1) is provided with a working channel inlet (9), and the working channel inlet (9) is communicated with the inside of the operating handle (1) and the inside of the front end part (4).

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