CN116407063A - Endoscope with movable image pick-up part - Google Patents

Abstract

The present invention provides an endoscope with a movable image pickup part, comprising: an operation part, wherein an insertion tube is arranged at the end part of the operation part; the device comprises a head end part, a first working state and a second working state, wherein the head end part comprises a mounting seat and a camera part, an instrument channel is formed in the mounting seat, the instrument channel is communicated with a lumen of the insertion tube, the camera part is slidably arranged on the mounting seat and is provided with the first working state and the second working state, the camera part at least covers part of the instrument channel in the first working state, and the camera part is far away from the instrument channel in the second working state so that the instrument channel is completely leaked out; and a driving mechanism for driving the image pickup section to move. The invention provides an endoscope with a movable shooting part, which aims to solve the problems that in the prior art, the shooting part of the endoscope is fixedly arranged, the occupied space is large, the diameter of an instrument channel is small, and the operation is not facilitated.

Description

Endoscope with movable image pick-up part

Technical Field

The invention relates to the technical field of medical equipment, in particular to an endoscope with a movable image pick-up part.

Background

At present, the endoscope head end is including devices such as the pincers way of module, the illumination window, spout and logical apparatus of making a video recording, the cable of module rear end transmission signal, the light guide beam of illumination window rear end and the steam pipe of spout rear end are flexible cylinder, their sectional area is all less relatively, lead to the inside space utilization of the portion of inserting that connects behind the head end lower, and under the certain circumstances of head end external diameter, pincers way size restriction can't make big, the auxiliary instrument size that pincers way passed is restricted equally, the auxiliary instrument function singleness that pincers way can pass has increased the clinical treatment degree of difficulty.

Patent US 5489256 discloses a sterilizable endoscope with a detachable disposable tube assembly having two separate parts, a channel portion and an imaging portion, which are assembled together in a single piece prior to use. The channel part is used as a disposable separable part, and the camera part can be reused;

patent US 6066090a discloses "a multi-branched endoscope system" having two or more branches, each of which may include illumination, an image pickup section, an operation channel, and the like. The patent solves the problems of single use of auxiliary devices caused by limited clamp sizes and limited imaging effect caused by limited image sensor sizes, but the multi-branch structure increases the outer diameter of the endoscope body, and discomfort is added to a patient in the process of endoscope insertion;

patent US 2015136977 A1 discloses a flexible master-slave robotic endoscope system having at least one endoscope auxiliary instrument channel. The endoscope may pass through a variety of endoscope auxiliary instruments without increasing the size of the jaws. If the dimensions of each instrument channel are kept consistent with those of the existing endoscope, the outer diameter of the endoscope increases;

patent US 20110098529A1 discloses "a method and device in connection with a flexible assembly at a distal end portion of a medical instrument", the device comprising two rotatable flexible assemblies, at least one of which is a camera. When the device enters a human body to perform operation, the two rotatable flexible components twist to leave a space in the middle, so that the middle large forceps opening can conveniently extend out and operate the appliance. However, the two flexible components at the front end of the device are inconvenient to control when being inserted, and the device for controlling the rotation and bending of the flexible components still occupies the space of the forceps channel;

patent US 20190082940A1 discloses "an endoscope with a shared working channel", which delivers a plurality of tools through one working channel, in which a camera is transported through one guide rail, and which is mounted on the outer surface of the head end of the endoscope by rotation of the guide rail out of the working channel port after insertion into the interior of the human body. In flexible endoscopes, however, it is difficult to precisely control the rotation of the distal end member of the scope;

patent (application number 202111548560.7) discloses an endoscope which is provided with a driving part to drive an elastic deformation part to deform and shade or open an outlet of a main pipe, but the elastic deformation part is not easy to drive and the deformation of the elastic deformation part is not easy to control, so that the accurate opening and closing effects of the main pipe are difficult to ensure;

therefore, the prior art still cannot satisfy that the endoscope has a larger size of jaws under the condition that the outer diameter of the head end of the endoscope is constant.

Disclosure of Invention

The invention provides an endoscope with a movable shooting part, which aims to solve the problems that in the prior art, the shooting part of the endoscope is fixedly arranged, the occupied space is large, the diameter of an instrument channel is small, and the operation is not facilitated.

In order to solve the problems of the prior art, the present invention provides an endoscope with a movable image pickup section, comprising:

an operation part, wherein an insertion tube is arranged at the end part of the operation part;

the head end part is arranged at one end of the insertion tube far away from the operation part and comprises an installation seat and a shooting part, an instrument channel is arranged on the installation seat and is communicated with the lumen of the insertion tube, the shooting part is arranged on the installation seat in a sliding manner and has a first working state and a second working state, the shooting part is arranged close to the instrument channel and at least covers part of the instrument channel, and the shooting part is arranged far away from the instrument channel in the second working state so as to enable the instrument channel to completely leak out; the method comprises the steps of,

the driving mechanism comprises a traction piece and a driving piece, the traction piece comprises a first traction rope and a second traction rope which are arranged on the image pick-up part, the driving piece is arranged on the operation part and is respectively in driving connection with the first traction rope and the second traction rope, the first traction rope is used for driving the image pick-up part to be close to the instrument channel, and the second traction rope is used for driving the image pick-up part to be far away from the instrument channel.

According to the endoscope with the movable image pick-up part, the driving mechanism comprises the traction piece and the driving piece, the traction piece comprises the first traction rope and the second traction rope which are arranged on the image pick-up part, the driving piece is respectively in driving connection with the first traction rope and the second traction rope, the first traction rope is used for driving the image pick-up part to be close to the instrument channel, and the second traction rope is used for driving the image pick-up part to be far away from the instrument channel.

According to the endoscope with the movable image pickup part, the first traction rope is arranged at one end of the image pickup part far away from the instrument channel, the second traction rope is arranged at one end of the image pickup part near to the instrument channel, the extending directions of the first traction rope and the second traction rope are opposite, two first rope penetrating holes are formed in the middle of the mounting seat corresponding to the image pickup part, and the first traction rope and the second traction rope are respectively penetrated in the two first rope penetrating holes;

the second traction rope is pulled and loosened along the axial direction, the camera part moves towards the direction far away from the instrument channel, the first traction rope is pulled and loosened along the axial direction, and the camera part moves towards the direction close to the instrument channel.

According to the endoscope with the movable image pickup part, the first fixing block and the second fixing block are arranged on the operation part, the first traction rope penetrates through the pipe cavity and is fixed on the first fixing block, the second traction rope penetrates through the pipe cavity and is fixed on the second fixing block, the first fixing block and the second fixing block are sequentially arranged along the height direction of the operation part, and the driving piece is used for driving the first fixing block and the second fixing block to be close to or far away from the head end part, and the movement direction of the first fixing block and the movement direction of the second fixing block are opposite.

According to the endoscope with the movable image pickup part, the operation part comprises a connecting cylinder, a first lifting ring and a second lifting ring are slidably arranged on the inner wall surface of the connecting cylinder, the first fixing block is arranged on the first lifting ring, and the second fixing block is arranged on the second lifting ring;

the two sides of the first lifting ring and the second lifting ring are respectively provided with a sliding block, the side wall of the connecting cylinder is correspondingly provided with two sliding hole groups along the axial direction, each sliding hole group comprises two sliding holes, each sliding hole extends along the length direction of the connecting cylinder, each sliding block is respectively and slidably connected with the corresponding sliding hole, and the driving piece is used for driving each sliding block to move along the corresponding sliding hole.

According to the endoscope with the movable image pick-up part, the driving piece comprises the lifting grooved pulley and the lifting knob, the lifting grooved pulley is movably sleeved outside the connecting cylinder, the lifting grooved pulley is provided with a first spiral groove and a second spiral groove along the axial direction, and the rotation directions of the first spiral groove and the second spiral groove are opposite;

the sliding block of the first lifting ring is connected with the first spiral groove in a sliding mode, the sliding block of the second lifting ring is connected with the second spiral groove in a sliding mode, and the lifting knob is sleeved outside the lifting grooved pulley and used for driving the lifting grooved pulley to rotate along the axial direction.

According to the endoscope with the movable imaging part, the mounting seat is provided with the boss close to the instrument channel, and the imaging part has a movable stroke close to and far from the boss so as to partially cover or open the instrument channel.

According to the endoscope with the movable image pickup part, the repulsive piece is arranged on the boss so as to provide repulsive force for the image pickup part, and the driving mechanism is used for driving the image pickup part to overcome the repulsive force so as to approach the boss;

the repelling piece comprises a spring arranged on the boss, and the spring is in a compressed state when the camera shooting part is close to the boss; and/or the repelling piece comprises a spring piece arranged on the boss, and when the camera shooting part is close to the boss, the spring piece is in a compressed state; and/or, the repelling member comprises a first magnet arranged on the boss and a second magnet arranged on the image pick-up part, and the magnetic poles of the first magnet and the second magnet are mutually exclusive.

According to the endoscope with the movable image pickup part, the endoscope with the movable image pickup part further comprises the guide mechanism, wherein the guide mechanism is arranged on the mounting seat and used for guiding the movement of the image pickup part so as to enable the image pickup part to be switched from the first working state to the second working state.

According to the endoscope with the movable image pick-up part, the guide mechanism comprises the guide rail arranged on the mounting seat, the guide rail extends from the instrument channel to the direction far away from the instrument channel, and the bottom end of the image pick-up part is correspondingly provided with the sliding groove so that the image pick-up part is in sliding connection with the guide rail; or,

the guide mechanism comprises a guide post arranged on the camera shooting part, a guide hole is correspondingly formed in the boss, the guide post is movably inserted into the guide hole so as to guide the movement of the camera shooting part, and the spring is sleeved on the guide post under the condition that the repelling part is arranged as the spring.

According to the endoscope with the movable image pickup part, the first traction rope and the second traction rope comprise steel wire ropes, and module cables or pipelines of the image pickup part.

According to the endoscope with the movable image pickup part, the image pickup part comprises an image pickup module, an illumination unit and a nozzle.

According to the endoscope with the movable imaging part, the imaging part is arranged on the mounting seat in a sliding manner, and the instrument channel can be covered or exposed through the sliding of the imaging part, so that the sectional area of the end part of the endoscope can be increased, the instrument channel with the limited original size can be enlarged, and in addition, the size of the imaging part can be further increased, and a better image effect can be obtained. The endoscope with the movable image pickup part can stably drive the movement of the image pickup part through the cooperation of the traction rope and the driving piece arranged on the operation part, and has simple operation; when the instrument channel is of a certain size, the mounting seat and the image pickup part are made to be separable, so that the outer diameter of the head end of the endoscope can be reduced, and discomfort during patient detection can be reduced.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a first embodiment of an endoscope with a movable image pickup section according to the present invention;

FIG. 2 is a schematic perspective view of the head end of FIG. 1;

FIG. 3 is a schematic top view of the structure of FIG. 2;

FIG. 4 is a schematic exploded perspective view of FIG. 2;

FIG. 5 is a first partial cross-sectional structural schematic view of FIG. 1;

FIG. 6 is a second partial cross-sectional structural schematic view of FIG. 1;

FIG. 7 is a schematic view of the partial structure of FIG. 1;

FIG. 8 is a schematic elevational view of the lifting sheave of FIG. 1;

FIG. 9 is a schematic perspective view of the first fixing block in FIG. 1;

FIG. 10 is a perspective exploded view of a head end portion of a second embodiment of an endoscope with a movable imaging section according to the present invention;

FIG. 11 is a schematic view in partial cross-sectional configuration of a second embodiment of an endoscope with a movable image pickup section provided by the present invention;

fig. 12 is a schematic partial structure of a second embodiment of an endoscope in which an image pickup section is movable.

Reference numerals:

1: an inner part 2 with a movable image pickup part: an operation unit; 3: a head end portion; a speculum;

4: a driving mechanism; 5: a guide mechanism; 6: an insertion tube;

7: a connecting cylinder; 8: a mounting base; 9: an imaging unit;

10: a traction member; 11: a driving member; 12: a guide rail;

13: a chute; 14: a lumen; 15: a first lifting ring;

16: a second lifting ring; 17: a slide hole; 18: an instrument channel;

19: a first rope hole; 20: a second rope hole; 21: a boss;

22: a third lifting ring; 23: a first traction rope; 24: a second traction rope;

25: lifting grooved wheels; 26: a lifting knob; 27: a first fixed block;

28: a sliding block; 29: a second fixed block; 30: a repelling member;

31: a first helical groove; 32: a second helical groove; 33: and a third traction rope.

Detailed Description

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

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.

In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The endoscope 1 with a movable image pickup section provided by the present invention is described below with reference to fig. 1 to 12.

In order to solve the problem of the smaller diameter of the instrument channel 18 of the endoscope in the conventional art, referring to fig. 1 to 9, the present invention provides an endoscope 1 with a movable image pickup section, comprising: an operation section 2, wherein an insertion tube 6 is provided at an end of the operation section 2; the head end 3 is arranged at one end of the insertion tube 6 far away from the operation part 2, the head end 3 comprises a mounting seat 8 and an image pick-up part 9, an instrument channel 18 is arranged on the mounting seat 8, the instrument channel 18 is communicated with the lumen 14 of the insertion tube 6, and thus an operation instrument of the endoscope can be exposed out of the instrument channel 18 to perform operation by passing through the lumen 14 of the insertion tube 6 and the instrument channel 18. The image pick-up part 9 is slidably arranged on the mounting seat 8 to have a first working state and a second working state, wherein in the first working state, the image pick-up part 9 is arranged close to the instrument channel 18 and at least covers part of the instrument channel 18, and in the second working state, the image pick-up part 9 is arranged far away from the instrument channel 18 so as to enable the instrument channel 18 to completely leak out; and a driving mechanism 4 for driving the movement of the image pickup section 9 so that the image pickup section 9 is switched from the first operation state to the second operation state.

Specifically, the driving mechanism 4 includes a traction member 10 and a driving member 11, the traction member 10 includes a first traction rope 23 and a second traction rope 24 disposed on the image capturing portion 9, the driving member 11 is disposed on the operating portion 2 and is respectively in driving connection with the first traction rope 23 and the second traction rope 24, the first traction rope 23 is used for driving the image capturing portion 9 to be close to the instrument channel 18, and the second traction rope 24 is used for driving the image capturing portion 9 to be far away from the instrument channel 18. In this way, in the process of using the endoscope, the driving action on the image pickup part 9 can be achieved by driving the first traction rope 23 and the second traction rope 24 respectively, which is more convenient and quick.

It should be noted that, in the conventional art, the image capturing portion 9 is fixedly disposed on the mounting seat 8 and integrally disposed with the mounting seat 8, and since the radial size of the mounting seat 8 is substantially determined (the diameter of the mounting seat 8 is too large, which may cause discomfort to the patient during the endoscopic examination), a part of the usage area of the mounting seat 8 will be occupied by the image capturing portion 9, so that the usage area reserved for the instrument channel 18 will be reduced, and the use of the instrument will be limited. The invention can enlarge the sectional area of the endoscope head end 3 by arranging the camera shooting part 9 to be movably arranged, the camera shooting part 9 can movably cover or open the instrument channel 18, the original size-limited instrument channel 18 can be enlarged, in addition, the size of the camera shooting part 9 can be further enlarged, better image effect can be obtained, under the condition that the size of the instrument channel 18 is fixed, the mounting seat 8 and the camera shooting part 9 can be made to be separable, the outer diameter of the endoscope head end 3 can be reduced, and the uncomfortable feeling of a patient during detection can be reduced.

It should be noted that, the first traction rope 23 and the second traction rope 24 may be arranged in various manners, and the first traction rope 23 and the second traction rope 24 may be arranged on the same side, but the driving forces of the driving member 11 on the two are opposite, for example, one force direction extends toward the direction approaching the instrument channel 18, so as to pull the first traction rope 23 to make the image pickup portion 9 approach the instrument channel 18; the other force direction extends away from the instrument channel 18 for pulling the second traction cable 24 to move the camera part 9 away from the instrument channel 18, which may require the provision of two driving members 11 for providing forces in different directions. In order to simplify the driving source, referring to fig. 3, in the technical scheme provided by the invention, a first haulage rope 23 is arranged at one end of the image pickup portion 9 far away from the instrument channel 18, a second haulage rope 24 is arranged at one end of the image pickup portion 9 near to the instrument channel 18, the extending directions of the first haulage rope 23 and the second haulage rope 24 are opposite, two first rope penetrating holes 19 are formed in the middle of the mounting seat 8 corresponding to the image pickup portion 9, the first haulage rope 23 and the second haulage rope 24 are respectively penetrated into the two first rope penetrating holes 19, two second rope penetrating holes 20 are respectively formed at two sides of the mounting seat 8 in the length direction, and the first haulage rope 23 and the second haulage rope 24 are respectively penetrated into the two second rope penetrating holes 20 so as to achieve a good fixing effect. The driving member 11 tightens the second traction rope 24 in the axial direction and loosens the first traction rope 23, and the image pick-up part 9 moves in the direction away from the instrument channel 18 because the first rope penetrating hole 19 and the second rope penetrating hole 20 are fixed; similarly, the first traction rope 23 is pulled in the axial direction and the second traction rope 24 is released, and the imaging section 9 moves in the direction approaching the instrument channel 18. It should be noted that, the first rope hole 19 is preferably located at a distance equal to the distance between the mounting ends of the first traction rope 23 and the second traction rope 24, and the endoscope is in the first working state (i.e., the closed state), and the driving member 11 may switch to the second working state (the separated state) by pulling the second traction rope 24 in the axial direction and releasing the first traction rope 23, and may return to the first working state by pulling the first traction rope 23 in the axial direction and releasing the second traction rope 24.

Further, the operation portion 2 is provided with a first fixing block 27 and a second fixing block 29, the first traction rope 23 passes through the lumen 14 and is fixed to the first fixing block 27, the second traction rope 24 passes through the lumen 14 and is fixed to the second fixing block 29, the first fixing block 27 and the second fixing block 29 are sequentially arranged along the height direction of the operation portion 2, and the driving member 11 is used for driving the first fixing block 27 and the second fixing block 29 to be close to or far from the head end portion 3. Specifically, the movement directions of the first fixing block 27 and the second fixing block 29 are opposite, when the first fixing block 27 is close to the head end portion 3, the first traction rope 23 is in a relaxed state, the second fixing block 29 is far away from the head end portion 3, the second traction rope 24 is in a tensioned state, and the image pickup portion 9 is far away from the instrument channel 18 and is in a second working state; similarly, when the first fixing block 27 is away from the head end 3, the first traction rope 23 is in a tensioned state, the second fixing block 29 is disposed near the head end 3, and the second traction rope 24 is in a relaxed state, the image pickup portion 9 is near the instrument channel 18, and the first working state is reached.

More specifically, the operation part 2 includes a connecting cylinder 7, the inner wall surface of the connecting cylinder 7 is slidably provided with a first lifting ring 15 and a second lifting ring 16, a first fixing block 27 is provided on the first lifting ring 15, and a second fixing block 29 is provided on the second lifting ring 16; two sliding blocks 28 are respectively arranged on two sides of the first lifting ring 15 and the second lifting ring 16, two sliding hole groups are correspondingly arranged on the side wall of the connecting cylinder 7 along the axial direction, each sliding hole group comprises two sliding holes 17, each sliding hole 17 extends along the length direction of the connecting cylinder 7, each sliding block 28 is respectively connected with the corresponding sliding hole 17 in a sliding mode, and the driving piece 11 is used for driving each sliding block 28 to move along the corresponding sliding hole 17. Since the slide hole 17 extends along the height direction of the connecting cylinder 7, when the two lifting rings move up and down along the corresponding slide hole groups respectively, the effect of loosening or tightening the corresponding traction ropes can be achieved. It should be noted that, the movement direction of the first lifting ring 15 is opposite to that of the second lifting ring 16, that is, when the first lifting ring 15 moves upward (moves away from the head end 3), the first traction rope 23 is tensioned, the second lifting ring 16 moves downward (moves close to the head end 3), and the second traction rope 24 is loosened, so that the endoscope is in the first working state; when the first lifting loop 15 moves downwards (moves close to the head end 3), the first traction rope 23 is loosened, the second lifting loop 16 moves upwards (moves away from the head end 3), and the second traction rope 24 is tensioned, and the endoscope is in the second working state.

The first lifting ring 15 and the second lifting ring 16 can be driven to move in various modes, only the sliding block 28 can slide along the corresponding sliding hole 17, and the connecting rod is connected with the sliding block 28 respectively, and the sliding block 28 is driven to move manually. In the technical scheme provided by the invention, the driving piece 11 comprises a lifting grooved pulley 25 and a lifting knob 26, wherein the lifting grooved pulley 25 is movably sleeved outside the connecting cylinder 7, the lifting grooved pulley 25 is respectively provided with a first spiral groove 31 and a second spiral groove 32 along the axial direction, and the rotation directions of the first spiral groove 31 and the second spiral groove 32 are opposite; the movable block of the first lifting ring 15 is slidably connected to the first spiral groove 31, the sliding block 28 of the second lifting ring 16 is slidably connected to the second spiral groove 32, and the lifting knob 26 is sleeved outside the lifting sheave 25 and is used for driving the lifting sheave 25 to rotate in the axial direction.

It should be noted that, the sliding block 28 is disposed protruding from the sliding hole 17, and a portion of the sliding block 28 protruding from the sliding hole 17 is slidably connected to the corresponding screw channel; in the technical scheme provided by the invention, the rotation direction of the first spiral groove 31 is clockwise, the rotation direction of the second spiral groove 32 is anticlockwise, the height of the lifting sheave 25 is unchanged, and the lifting sheave only rotates in the axial direction; while the lifting sheave 25 rotates, the first spiral groove 31 and the second spiral groove 32 push the corresponding sliding block 28 to move, and under the limited guiding action of the sliding hole set, the sliding block 28 only moves up and down along the sliding hole 17, so that the effect of driving the first lifting ring 15 and the second lifting ring 16 to move up and down can be achieved. Specifically, in the present embodiment, fig. 7 shows the form of cooperation of the sliding block 28 and the lifting ring in the first working state (normal state of the endoscope), at this time, the lifting sheave 25 is rotated counterclockwise, the first lifting ring 15 is lowered, the second lifting ring 16 is raised, and the endoscope is in the second working state; the lifting sheave 25 is rotated clockwise again, the first lifting ring 15 is lifted, the second lifting ring 16 is lowered, and the endoscope is returned to the first operating state. By using the driving mode of the lifting grooved pulley 25 and the lifting knob 26, excessive operation space is not needed, and the camera shooting part 9 can be driven to move only by radially rotating the lifting knob 26, so that the operation is simpler and faster.

Further, the mounting seat 8 is provided with a boss 21 near the instrument channel 18, and the camera part 9 has a movable stroke near and far from the boss 21 to partially cover or uncover the instrument channel 18. Referring to the drawings, the boss 21 and the camera 9 may be combined into a complete cylinder when they are close to each other (the shape of the end 3 of the endoscope lens is generally cylindrical, so that it is convenient to perform inspection), and it should be noted that the instrument channel 18 is disposed through the boss 21, so that the instrument channel 18 can be disposed to maximize, and interference of the boss 21 or the camera 9 to the motion of the instrument is prevented.

The present invention provides two driving modes of the driving mechanism 4, the first is the first embodiment as above, and the driving mechanism 4 provides two opposite forces about the movement of the image pickup portion 9, so that the image pickup portion 9 can move close to or away from the mounting seat 8; the second embodiment of the present invention is that the repelling member 30 is provided on the boss 21, and the repelling member 30 provides a repulsive force to the image pickup portion 9, so that the image pickup portion 9 has a tendency to move away from the boss 21, and the driving mechanism 4 is used to drive the image pickup portion 9 to overcome the repulsive force and approach the boss 21, so that the driving mechanism 4 can be further simplified.

Specifically, the present invention provides several embodiments of the repelling member 30, referring to fig. 10, wherein one repelling member 30 is a spring disposed on the boss 21, the spring is disposed on one end surface of the boss 21 facing the image capturing portion 9, and when the image capturing portion 9 approaches the boss 21, the spring is in a compressed state; the second repelling member 30 is a spring plate arranged on the boss 21, the spring plate is also arranged on one end face of the boss 21 facing the camera part 9, and when the camera part 9 approaches the boss 21, the spring plate is in a compressed state; third, the repelling member 30 includes a first magnet disposed on the boss 21 and a second magnet disposed on the image pickup unit 9, where the first magnet and the second magnet are disposed on two end surfaces of the boss 21 and the image pickup unit 9, respectively, and the magnetic poles of the first magnet and the second magnet are mutually exclusive.

In the second embodiment provided by the present invention, the driving mechanism 4 is similar to the first embodiment, in the second embodiment, referring to fig. 10-12, the image pickup portion 9 is provided with two third traction ropes 33, and the two third traction ropes 33 are respectively fixed on the third lifting ring 22 through the lumen 14, and the third lifting ring 22 can also slide along the inner tube wall of the connecting tube 7 to be far away from or near the head end 3. When the third haulage rope 33 is far away from the head end 3, the camera part 9 overcomes the repulsive force and is tightly clung to the boss 21, so that the endoscope is in the first working state, when the third haulage rope 33 is near the head end 3, the third haulage rope 33 is loosened and is acted by the repulsive force, and the camera part 9 moves away from the boss 21, so that the endoscope is in the second working state. The sliding block 28 is also arranged outside the third lifting ring 22, the connecting cylinder 7 is provided with a sliding hole 17, and the third lifting ring 22 is driven to lift by the lifting grooved pulley 25, but in the second embodiment, only one screw channel is arranged on the lifting grooved pulley 25, as in the first embodiment, the cooperation of the lifting grooved pulley 25 and the lifting knob 26 can achieve the effect of driving the third lifting ring 22 to move, and the invention will not be repeated because of the principle approximation with the first embodiment.

Further, the endoscope 1 with the movable image capturing portion further includes a guiding mechanism 5, and the guiding mechanism 5 is disposed on the mounting base 8 and is used for guiding the movement of the image capturing portion 9, so that the image capturing portion 9 is switched from the first working state to the second working state. In the first embodiment, the guide mechanism 5 includes a guide rail 12 provided on the mount, the guide rail 12 extends from the instrument channel 18 in a direction away from the instrument channel 18, and the bottom end of the image pickup portion 9 is provided with a slide groove 13 so that the image pickup portion 9 is slidably connected to the guide rail 12. Referring to the drawings, the guide rail 12 is provided as two linear guide rails 12, so that the stability of the movement of the image pickup section 9 can be ensured. When the camera part 9 is at the end of the guide rail 12 near the instrument channel 18, the camera part 9 can cover the instrument channel 18, and when the camera part 9 slides to the end of the guide rail 12 far from the instrument channel 18, the instrument channel 18 can be partially or completely opened. It should be noted that since the imaging section 9 moves to the distal end of the guide rail 12, there is a possibility that the diameter of the endoscope head end portion 3 increases at the time of movement, and therefore, it is necessary to provide the guide rail 12 excessively long in consideration of the relationship between the length of the guide rail 12 and the actual use diameter of the endoscope head end portion 3, so as to prevent the diameter of the endoscope head end portion 3 from becoming excessively large at the time of movement of the imaging section 9 along the guide rail 12 from causing discomfort in patient examination. In the second embodiment, the guiding mechanism 5 includes two guiding posts provided on the image capturing portion 9, two third traction ropes 33 are respectively provided on the two guiding posts, two guiding holes are correspondingly provided on the boss 21, and the two third traction ropes 33 are respectively provided through the two guiding holes and extend into the lumen 14 and are fixed on the third lifting ring 22. The guide post is movably inserted into the guide hole to guide the movement of the camera 9, and under the condition that the repelling member 30 is set as a spring, the spring can be sleeved on the guide post or arranged at the corresponding position of the guide hole (in this embodiment, the spring is arranged at the guide hole), so that the camera 9 moves and has an extrusion effect on the spring.

The traction member 10 plays a role in traction of the imaging unit 9, and may be a wire rope or a pulling rope, and the present invention is not limited thereto. In addition, the image pickup section 9 provided by the present invention is an integrated component including an image pickup module, an illumination unit for providing illumination, a nozzle for ejecting moisture, and the like.

The endoscope 1 with the movable image pick-up part is simple and quick to operate, on one hand, the sectional area of the head end 3 of the endoscope can be increased, so that the instrument channel 18 with the limited original size can be enlarged, and on the other hand, the size of the image pick-up part 9 can be further increased, and a better image effect can be obtained; the outer diameter of the endoscope head end 3 can be reduced, and discomfort during patient detection can be reduced.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An endoscope having a movable imaging unit, comprising:

an operation part, wherein an insertion tube is arranged at the end part of the operation part;

the head end part is arranged at one end of the insertion tube far away from the operation part and comprises an installation seat and a shooting part, the installation seat is provided with an instrument channel, the instrument channel is communicated with the lumen of the insertion tube, the shooting part is arranged on the installation seat in a sliding manner and has a first working state and a second working state, the shooting part at least covers part of the instrument channel in the first working state, and the shooting part is arranged far away from the instrument channel in the second working state so as to enable the instrument channel to completely leak out; the method comprises the steps of,

the driving mechanism comprises a traction piece and a driving piece, the traction piece is arranged on the first traction rope and the second traction rope of the image pickup part, the driving piece is arranged on the operation part and is respectively in driving connection with the first traction rope and the second traction rope, the first traction rope is used for driving the image pickup part to be close to the instrument channel, and the second traction rope is used for driving the image pickup part to be far away from the instrument channel.

2. The endoscope with the movable image pick-up section according to claim 1, wherein the first haulage rope is arranged at one end of the image pick-up section far away from the instrument channel, the second haulage rope is arranged at one end of the image pick-up section near the instrument channel, the extending directions of the first haulage rope and the second haulage rope are opposite, two first rope penetrating holes are formed in the middle of the mounting seat corresponding to the image pick-up section, and the first haulage rope and the second haulage rope are respectively penetrated in the two first rope penetrating holes;

the second traction rope is pulled and loosened along the axial direction, the camera part moves towards the direction far away from the instrument channel, the first traction rope is pulled and loosened along the axial direction, and the camera part moves towards the direction close to the instrument channel.

3. The endoscope with a movable image pickup portion according to claim 2, wherein a first fixing block and a second fixing block are provided on the operation portion, the first pulling rope passes through the lumen and is fixed to the first fixing block, the second pulling rope passes through the lumen and is fixed to the second fixing block, the first fixing block and the second fixing block are sequentially provided along a height direction of the operation portion, and the driving member is configured to drive the first fixing block and the second fixing block to approach or separate from the head end portion, and a movement direction of the first fixing block and a movement direction of the second fixing block are opposite.

4. The endoscope with a movable image pickup section according to claim 3, wherein the operation section includes a connection tube, a first lifting ring and a second lifting ring are slidably provided on an inner wall surface of the connection tube, the first fixing block is provided on the first lifting ring, and the second fixing block is provided on the second lifting ring;

the two sides of the first lifting ring and the second lifting ring are respectively provided with a sliding block, the side wall of the connecting cylinder is correspondingly provided with two sliding hole groups along the axial direction, each sliding hole group comprises two sliding holes, each sliding hole extends along the length direction of the connecting cylinder, each sliding block is respectively and slidably connected with the corresponding sliding hole, and the driving piece is used for driving each sliding block to move along the corresponding sliding hole.

5. The endoscope with the movable image pickup portion according to claim 4, wherein the driving member comprises a lifting sheave and a lifting knob, the lifting sheave is movably sleeved outside the connecting cylinder, a first spiral groove and a second spiral groove are respectively formed in the lifting sheave along the axial direction, and the rotation directions of the first spiral groove and the second spiral groove are opposite;

the sliding block of the first lifting ring is connected with the first spiral groove in a sliding mode, the sliding block of the second lifting ring is connected with the second spiral groove in a sliding mode, and the lifting knob is sleeved outside the lifting grooved pulley and used for driving the lifting grooved pulley to rotate around the axial direction.

6. The endoscope of claim 1, wherein the mounting base is provided with a boss adjacent to the instrument channel, the camera having a movable stroke adjacent to and away from the boss to partially cover or uncover the instrument channel.

7. The endoscope of claim 6, wherein the boss is provided with a repulsive member to provide a repulsive force to the image pickup portion, and the driving mechanism is configured to drive the image pickup portion to approach the boss against the repulsive force;

the repelling piece comprises a spring arranged on the boss, and the spring is in a compressed state when the camera shooting part is close to the boss; and/or the repelling piece comprises a spring piece arranged on the boss, and when the camera shooting part is close to the boss, the spring piece is in a compressed state; and/or, the repelling member comprises a first magnet arranged on the boss and a second magnet arranged on the image pick-up part, and the magnetic poles of the first magnet and the second magnet are mutually exclusive.

8. The endoscope of claim 1 or 7, further comprising a guide mechanism provided on the mount for guiding movement of the imaging section to switch the imaging section from the first operating state to the second operating state.

9. The endoscope with the movable image pick-up section according to claim 8, wherein the guiding mechanism comprises a guide rail arranged on the mounting seat, the guide rail extends from the instrument channel to a direction away from the instrument channel, and a sliding groove is correspondingly formed at the bottom end of the image pick-up section so that the image pick-up section is in sliding connection with the guide rail; or,

the guide mechanism comprises a guide post arranged on the camera shooting part, a guide hole is correspondingly formed in the boss, the guide post is movably inserted into the guide hole so as to guide the movement of the camera shooting part, and the spring is sleeved on the guide post under the condition that the repelling part is arranged as the spring.

10. The endoscope of claim 1, wherein the camera comprises a camera module, an illumination unit, and a spout.

Images