CN219516186U

CN219516186U - Endoscope angle adjusting mechanism and endoscope

Info

Publication number: CN219516186U
Application number: CN202320643687.5U
Authority: CN
Inventors: 张澍田; 陈东; 王伟; 曹锐
Original assignee: Xinguangwei Medical Technology Suzhou Co ltd
Current assignee: Xinguangwei Medical Technology Suzhou Co ltd; Beijing Friendship Hospital
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-08-15
Anticipated expiration: 2033-03-28

Abstract

The utility model provides an endoscope angle adjusting mechanism and an endoscope, and relates to the field of medical equipment, wherein the angle adjusting mechanism comprises a handle body, a rotating wheel and a locking structure, the outer peripheral surface of the rotating wheel comprises a plurality of first clamping planes which are connected end to end, two adjacent clamping planes in the plurality of first clamping planes have included angles, and the rotating wheel is rotatably connected with the handle body; the locking structure is provided with a second clamping plane, the locking structure is movably connected with the handle body, the locking structure is provided with a locking position and an unlocking position which are mutually switched, and when the locking structure is in the locking position, the second clamping plane is attached to at least one first clamping plane in the plurality of first clamping planes so as to enable the rotating wheel and the handle body to be relatively fixed; when the first clamping plane is positioned at the unlocking position, the second clamping plane is separated from the first clamping plane. After the rotating wheel is locked, the rotating wheel is not easy to slip or loose, and the locking effect is good.

Description

Endoscope angle adjusting mechanism and endoscope

Technical Field

The utility model relates to the field of medical equipment, in particular to an endoscope angle adjusting mechanism and an endoscope.

Background

At present, when the endoscope is inserted into a human body for observation, examination and treatment, the front end of the flexible endoscope can be bent, so that tissues in the patient can be observed from different directions. In the actual operation process, for facilitating the observation of doctors, when the front end of the flexible endoscope is bent to a certain angle, the locking is needed, namely, the rotating wheel which drives the stay rope to rotate is locked, so that the rotating wheel can not rotate relative to the handle any more, and the angle of the front end is kept unchanged. In the prior art, the general locking structure prevents the rotating wheel from rotating by adopting the friction force after compaction, and the rotating wheel can not be ensured to be completely locked in a friction force mode, so that the condition of loosening or locking failure easily occurs.

Disclosure of Invention

The utility model aims to provide an endoscope angle adjusting mechanism and an endoscope, which can improve the stability of a rotating wheel after locking and are not easy to loosen after locking.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the present utility model provides an endoscope angle adjustment mechanism comprising:

the rotary wheel comprises a handle body, a rotary wheel and a locking structure, wherein the outer peripheral surface of the rotary wheel comprises a plurality of first clamping planes which are connected end to end, two adjacent clamping planes in the plurality of first clamping planes have included angles, and the rotary wheel is rotatably connected with the handle body; the locking structure is provided with a second clamping plane, the locking structure is movably connected with the handle body, the locking structure is provided with a locking position and an unlocking position which are mutually switched, and when the locking structure is positioned at the locking position, the second clamping plane is attached to at least one first clamping plane in the first clamping planes so as to enable the rotating wheel and the handle body to be relatively fixed; when the first clamping plane is positioned at the unlocking position, the second clamping plane is separated from the first clamping plane.

In an alternative embodiment, the locking structure comprises a locking block, the second clamping plane is arranged on the locking block, and the locking block is slidably connected with the handle body so as to switch between the locking position and the unlocking position.

In an alternative embodiment, the handle body is provided with a guide groove, and the locking block is slidably connected with the guide groove.

In an alternative embodiment, the locking structure further comprises an operating handle, the operating handle is rotatably connected with the handle body, and the operating handle is in transmission fit with the locking block and is used for driving the locking block to switch between the locking position and the unlocking position.

In an alternative embodiment, the locking block is provided with a limiting protrusion, and the limiting protrusion is used for abutting against the operating handle when the locking block is in an unlocking state, so as to prevent the operating handle from being separated from the locking block.

In an alternative embodiment, the locking structure further comprises an elastic restoring member connected to both the handle body and the locking block, the elastic restoring member being adapted to cause the locking block to have a tendency to move from the locking position to the unlocking position.

In an alternative embodiment, the locking structure is provided with a locking groove, and the number of the second clamping planes is multiple and are all located on the groove wall of the locking groove.

In an alternative embodiment, an annular slot is further formed in the outer circumferential surface of the rotating wheel, and the annular slot and the first clamping plane are arranged at intervals in the axial direction of the rotating wheel.

In an alternative embodiment, the handle body is provided with a marking part for indicating the position of the locking structure.

In a second aspect, the present utility model provides an endoscope comprising:

the endoscope angle adjustment mechanism of any of the preceding embodiments.

The beneficial effects of the utility model are as follows:

in summary, according to the endoscope angle adjusting mechanism provided by the utility model, when the angle of the front end of the endoscope needs to be adjusted, the locking structure is firstly located at the unlocking position, at this time, the second clamping plane is separated from the first clamping plane, the locking structure is not locked with the rotating wheel, and the rotating wheel can rotate relative to the handle body. In the rotating process of the rotating wheel, the front end can be driven to bend through a guy cable connected to the rotating wheel and the front end of the endoscope, and the bending angle of the front end can be adjusted. After the angle of endoscope front end is adjusted, at this moment, force application in locking structure makes its switch over to the locking state from the unblock state, even also second joint plane and the butt of corresponding first joint plane, realizes the rotation spacing of runner through the laminating of two planes, and the runner can not rotate for the handle body, and the position of endoscope front end is locked. Because the rotating wheel is locked by adopting a mode of abutting the plane and the plane, the rotating wheel and the locking structure cannot slip, the position of the rotating wheel after being locked is firm and reliable, and the locking effect is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an endoscope angle adjustment mechanism according to an embodiment of the present utility model;

FIG. 2 is an exploded view of an endoscope angle adjustment mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a hidden hand wheel of an endoscope angle adjustment mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a second housing according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a rotor wheel according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a hand wheel according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a locking block according to an embodiment of the present utility model;

fig. 8 is a schematic structural view of an operating handle according to an embodiment of the present utility model.

Icon:

100-a handle body; 110-a first housing; 111-minor axis; 120-a second housing; 121-a first rotation hole; 122-a second rotation hole; 123-guide grooves; 200-rotating wheels; 210-wheel body; 211-a rotation hole; 212-an annular wire slot; 220-a first axle; 230-a second axle; 231-a first clamping plane; 240-a third axle; 241-anti-rotation plane; 300-locking structure; 310-locking blocks; 311-locking groove; 312-a second clamping plane; 313-limit bump; 320-operating a handle; 321-rotating shaft; 330-elastic restoring member; 400-handwheels; 410-fixing holes; 411-assembly plane.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

At present, after the front end angle of the endoscope is adjusted, the rotating wheel 200 needs to be locked, so that the front end angle is kept unchanged, and the operation is convenient. In the prior art, the locking block is adopted to tightly press on the outer peripheral surface of the rotating wheel 200 to lock the rotating wheel 200 by means of friction force, the locking block is an arc surface, the outer peripheral surface of the rotating wheel 200 is an arc surface, and the two arc surfaces are coaxially arranged after being attached, so that the rotating wheel 200 and the locking block still have a rotating trend under a locking state, and the locking block is easy to slip and loose and poor in locking effect.

In view of this, the designer provides an endoscope angle adjustment mechanism, realizes the locking of runner 200 through plane and plane butt's mode, and runner 200 is difficult for skidding after the locking, difficult not hard up, and locking effect is good, and stability is high.

Referring to fig. 1 to 3, in the present embodiment, the endoscope angle adjusting mechanism includes a handle body 100, a rotating wheel 200, and a locking structure 300. The outer peripheral surface of the rotating wheel 200 comprises a plurality of first clamping planes 231 which are sequentially connected end to end, wherein two adjacent clamping planes in the plurality of first clamping planes 231 have included angles, and the rotating wheel 200 is rotatably connected with the handle body 100. The locking structure 300 has a second clamping plane 312, the locking structure 300 is movably connected with the handle body 100, and the locking structure 300 has a locking position and an unlocking position which are mutually switched. When in the locking position, the second clamping plane 312 is attached to at least one first clamping plane 231 of the first clamping planes 231, so that the rotating wheel 200 and the handle body 100 are relatively fixed. When in the unlocking position, the second clamping plane 312 is separated from the first clamping plane 231, and the rotating wheel 200 can rotate relative to the handle body 100, so that the front end angle of the endoscope can be adjusted.

The working principle of the endoscope angle adjusting mechanism provided by the embodiment is as follows:

when the endoscope front end angle adjustment is required, the locking structure 300 is located at the unlocking position, at this time, the second clamping plane 312 is separated from the first clamping plane 231, the locking structure 300 is locked to the rotating wheel 200, and the rotating wheel 200 can rotate freely relative to the handle body 100. In the rotating process of the rotating wheel 200, the front end can be driven to bend through the inhaul cable simultaneously connected with the rotating wheel 200 and the front end of the endoscope, so that the bending angle of the front end can be adjusted. When the angle adjustment of the front end of the endoscope is completed, at this time, the locking structure 300 is forced to switch from the unlocked state to the locked state, that is, even if the second clamping plane 312 abuts against the corresponding first clamping plane 231, the rotation limit of the rotating wheel 200 is realized through the lamination of the two planes, and the rotating wheel 200 cannot rotate relative to the handle body 100, so that the position of the front end of the endoscope is locked. Because the rotating wheel 200 is locked by adopting a plane-plane abutting mode, the sliding of the rotating wheel 200 and the locking structure 300 cannot occur, the position of the rotating wheel 200 after being locked is firm and reliable, and the locking effect is good.

Referring to fig. 2 and 4, in this embodiment, alternatively, the handle body 100 is configured as a split structure, and includes a first housing 110 and a second housing 120 that are fastened to each other, the first housing 110 and the second housing 120 are fixedly connected by a screw or a fastening structure, and when the first housing 110 and the second housing 120 are assembled, the two housings together define a housing chamber. The housing chamber can house components such as the wheel 200. Meanwhile, a first rotation hole 121 and a second rotation hole 122 are penetratingly provided on the second housing 120, the first rotation hole 121 and the second rotation hole 122 are arranged at intervals, and the first rotation hole 121 and the second rotation hole 122 are circular through holes. Meanwhile, a guide groove 123 is provided on the outer wall surface of the second housing 120, the guide groove 123 is a rectangular groove, the guide groove 123 is located between the first rotation hole 121 and the second rotation hole 122, and one side of the guide groove 123 away from the first rotation hole 121 communicates with the second rotation hole 122. The guide groove 123 is configured to receive the locking structure 300 and guide the locking structure 300 to slide in a set direction.

Referring to fig. 5, in the present embodiment, the rotating wheel 200 includes an integrated wheel body 210, a first wheel axle 220, a second wheel axle 230, and a third wheel axle 240. The first wheel axle 220 and the wheel body 210 are coaxially disposed, a rotation hole 211 is disposed on a side of the wheel body 210 away from the first wheel axle 220, and the rotation hole 211 is a circular hole and is coaxially disposed with the wheel body 210. Both ends of the second axle 230 are respectively connected to the first axle 220 and the third axle 240, and the three axles are coaxially disposed. The outer circumferential surface of the wheel body 210 is provided with an annular slot 212, the annular slot 212 is a circular slot, and the annular slot 212 and the rotating wheel 200 are coaxially arranged. The first clamping plane 231 is disposed on the second axle 230, so that the annular slot 212 and the first clamping plane 231 are spaced apart from each other in the axial direction of the rotor 200, and are not mutually affected. It should be understood that the number of the first clamping planes 231 is set as required, for example, in this embodiment, the number of the first clamping planes 231 is 12, and the included angles between any two adjacent first clamping planes 231 are the same, so that the cross-sectional profile of the second axle 230 is regular dodecagon. Obviously, in other embodiments, the number of the first engagement planes 231 on the outer peripheral surface of the second axle 230 is not limited to 12. The third shaft 240 is provided with two anti-rotation planes 241 arranged in a central symmetry. During assembly, the inner wall of the first housing 110 is provided with the short shaft 111, the short shaft 111 is inserted into the rotating hole 211 of the wheel body 210, and the first wheel shaft 220 penetrates through the second rotating hole 122, so that the rotating wheel 200 is stabilized together through the short shaft 111 and the first wheel shaft 220, and the rotating wheel 200 can rotate stably relative to the handle body 100. A portion of the second axle 230 is positioned within the second rotation hole 122 and the third axle 240 extends out of the second rotation hole 122. The locking structure 300 slidably disposed in the guide groove 123 can be engaged with or disengaged from the second axle 230.

It should be appreciated that rotation of the third wheel 240 can rotate the wheel 210, thereby moving the cable through which the angle of the endoscope front end is adjusted. Referring to fig. 1 and 6, in the present embodiment, a hand wheel 400 is sleeved outside the third shaft 240, a fixing hole 410 is provided on the hand wheel 400, the fixing hole 410 has two assembling planes 411, the third shaft 240 is inserted into the fixing hole 410, the two anti-rotation planes 241 are respectively attached to the two assembling planes 411, and the hand wheel 400 and the third shaft 240 are relatively fixed in the circumferential direction of the third shaft 240, so that the turning wheel 200 can be driven to rotate by turning the hand wheel 400.

Referring to fig. 2, 3, 7 and 8, in this embodiment, the optional locking structure 300 includes a locking block 310, an operating handle 320 and a resilient reset member 330. The locking block 310 is provided with a locking groove 311, and the groove wall of the locking groove 311 comprises a plurality of second clamping planes 312 which are connected in sequence. The locking block 310 is slidably connected with the guide groove 123, and the locking block 310 cannot rotate relative to the guide groove 123, and the notch of the locking groove 311 faces the second rotating hole 122, so that when the locking block 310 slides relative to the guide groove 123, the locking groove 311 can be clamped outside the second axle 230, and the second clamping plane 312 and the first clamping plane 231 are in clamping fit. The operation handle 320 is provided with a rotation shaft 321, the rotation shaft 321 is rotatably connected with the first rotation hole 121, and an end of the operation handle 320 can be abutted on the locking block 310, thereby pressing the locking block 310 to move close to the second wheel shaft 230 during rotation. Meanwhile, in order to prevent the operation handle 320 from being separated from the lock block 310 due to an excessive rotation amount of the operation handle 320 when the lock block 310 moves from the lock position to the unlock position, a limit protrusion 313 is provided on the lock block 310, and when the lock block 310 is in the unlock position during the rotation of the operation handle 320, the operation handle 320 is in contact with the limit protrusion 313, the operation handle 320 cannot continue to rotate in a direction away from the lock block 310, and the operation handle 320 cannot go beyond the lock block 310 and separate from the lock block 310. Meanwhile, the elastic restoring member 330 is disposed between the side surface of the locking block 310 provided with the limiting protrusion 313 and the groove wall of the guiding groove 123, and the elastic restoring member 330 is in a compressed state, so that the locking block 310 has a movement trend away from the second axle 230. Setting, when the operation handle 320 rotates in the first direction to enable the locking block 310 to be pressed against the second wheel axle 230, the external force applied to the locking block 310 can be removed when the operation handle 320 rotates in the second direction opposite to the first direction, at this time, under the action of the elastic reset element 330, the locking block 310 is lifted up to enable the locking block 310 to be far away from the second wheel axle 230, and the second clamping plane 312 is separated from the first clamping plane 231, that is, the elastic reset element 330 can enable the locking block 310 to be automatically switched from the locking position to the unlocking position on the premise that the operation handle 320 does not apply a pressing force to the locking block 310.

In this embodiment, the elastic restoring member 330 may be a spring, a shrapnel, a rubber member, or the like.

Alternatively, the operating handle 320 may be provided as a bent piece, and anti-slip patterns may be provided on the operating handle 320.

In other embodiments, the lock block 310 may also be rotatably coupled with the handle body 100 to effect switching between the locked and unlocked positions.

According to the endoscope angle adjusting mechanism provided by the embodiment, the locking block 310 can be driven to switch between the locking position and the unlocking position by applying the force to the operating handle 320, and when the endoscope angle adjusting mechanism is in the locking position, the locking groove 311 on the locking block 310 is clamped with the second wheel axle 230, each second clamping plane 312 is abutted with one first clamping plane 231, and the second wheel axle 230 is locked, namely, the locking of the rotating wheel 200 is realized. Because the first clamping plane 231 and the second clamping plane 312 are attached, the first clamping plane 231 and the second clamping plane 312 have no relative rotation trend, are not easy to slip and loose, and have good locking effect.

The present embodiment also provides an endoscope including the endoscope angle adjustment mechanism mentioned in the above embodiment.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An endoscope angle adjustment mechanism, comprising:

2. The endoscope angle adjustment mechanism of claim 1, wherein:

the locking structure comprises a locking block, the second clamping plane is arranged on the locking block, and the locking block is slidably connected with the handle body so as to switch between the locking position and the unlocking position.

3. The endoscope angle adjustment mechanism of claim 2, wherein:

the handle body is provided with a guide groove, and the locking block is slidably connected with the guide groove.

4. The endoscope angle adjustment mechanism of claim 2, wherein:

the locking structure further comprises an operating handle, the operating handle is rotatably connected with the handle body, the operating handle is in transmission fit with the locking block and used for driving the locking block to switch between the locking position and the unlocking position.

5. The endoscope angle adjustment mechanism of claim 4, wherein:

the locking block is provided with a limiting protrusion, and the limiting protrusion is used for being abutted with the operating handle when the locking block is in an unlocking state so as to prevent the operating handle from being separated from the locking block.

6. The endoscope angle adjustment mechanism of claim 5, wherein:

the locking structure further comprises an elastic reset piece which is simultaneously connected with the handle body and the locking block, and the elastic reset piece is used for enabling the locking block to have a trend of moving from the locking position to the unlocking position.

7. The endoscope angle adjustment mechanism of claim 1, wherein:

the locking structure is provided with locking grooves, and the number of the second clamping planes is multiple and is located on the groove walls of the locking grooves.

8. The endoscope angle adjustment mechanism of claim 1, wherein:

the outer peripheral surface of the rotating wheel is also provided with annular wire grooves, and the annular wire grooves and the first clamping planes are arranged at intervals in the axial direction of the rotating wheel.

9. The endoscope angle adjustment mechanism of claim 1, wherein:

the handle body is provided with a marking part for indicating the position of the locking structure.

10. An endoscope, the endoscope comprising:

the endoscope angle adjustment mechanism of any of claims 1-9.