CN117426734B

CN117426734B - Bending opening and closing control mechanism and endoscope

Info

Publication number: CN117426734B
Application number: CN202311754876.0A
Authority: CN
Inventors: 龚志超; 李明; 胡济凡
Original assignee: Sz Hugemed Med Tech Dev Co ltd
Current assignee: Sz Hugemed Med Tech Dev Co ltd
Priority date: 2023-12-20
Filing date: 2023-12-20
Publication date: 2024-03-19
Anticipated expiration: 2043-12-20
Also published as: CN117426734A

Abstract

The invention discloses a bending opening and closing control mechanism and an endoscope, wherein the bending opening and closing control mechanism comprises a shell, a main shaft, a first driving module, a second driving module and a third driving module, the first driving module comprises a first operation unit, a first damping unit and a first rotating wheel, the first operation unit is rotatably sleeved on the main shaft, the first rotating wheel is connected with the first operation unit, the second driving module comprises a second operation unit, a second damping unit and a second rotating wheel, the second operation unit is rotatably sleeved on the first operation unit, and the second rotating wheel is connected with the second operation unit. The third driving module is rotatably connected to the shell and sleeved on the main shaft, and is in transmission fit with the bench clamp device to drive the bench clamp device to open or close. The first driving module, the second driving module and the third driving module of the bending opening and closing control mechanism are arranged on the same main shaft, occupy smaller space, have higher integration level and are convenient to assemble and operate by personnel.

Description

Bending opening and closing control mechanism and endoscope

Technical Field

The invention relates to the technical field of medical equipment, in particular to a bending opening and closing control mechanism and an endoscope.

Background

An endoscope is a commonly used instrument in clinical medical diagnosis and treatment, which can be introduced into a human body through an inherent opening, hole, channel, etc. of the human body or through an incision formed by operation. The endoscope doctor can directly observe the pathological changes in the body, which is more beneficial to the diagnosis and treatment of the doctor on the pathological conditions.

Before the endoscope bending control mechanism is operated, the bending control mechanism is in a natural relaxed state, when the endoscope bending control mechanism is inserted, a doctor enters the oral cavity, the esophagus, the stomach, the intestinal tract and the like through a natural cavity of a human body, when the endoscope bending control mechanism is not smoothly inserted in a curve in the insertion process, the endoscope bending control mechanism is required to be operated, proper bending is required, the endoscope bending control mechanism is convenient to continue to insert, when the endoscope bending control mechanism is inserted into a target position, the bending control mechanism is required to be adjusted, and the directions of a head end lens and a forceps opening are aligned to the target position.

The structure of the existing endoscope bending mechanism is relatively complex, the integration level is low, a knob for controlling bending of snake bones towards different directions and a knob for controlling opening and closing of a vice are integrated at different positions of a shell, the position of a handle is occupied, and the assembly is inconvenient and the operation of operators is inconvenient.

Disclosure of Invention

The first object of the present invention is to provide a bending opening and closing control mechanism, which sets a driving mechanism for controlling bending of snake bone along two directions and a driving mechanism for controlling opening and closing of a vice on the same main shaft, occupies a smaller space, has a higher integration level, and is convenient for assembly and personnel operation.

A second object of the present invention is to provide an endoscope, which has a high integration degree, is convenient to assemble, and is convenient for a person to operate and can improve the operation comfort.

In order to achieve the technical effects, the technical scheme of the invention is as follows:

the invention discloses a bending opening and closing control mechanism, which is used for driving snake bones of an endoscope to bend along a first direction or a second direction and is used for driving a bench clamp of the endoscope to open or close, and comprises the following components: a housing; a spindle mounted to the housing; the first driving module comprises a first operation unit, a first damping unit and a first rotating wheel, wherein the first operation unit is rotatably sleeved on the main shaft, the first rotating wheel is connected with the first operation unit and is rotatably sleeved on the main shaft, the first rotating wheel is matched with a first driving wire for controlling the snake bone to bend along the first direction, and the first damping unit is used for applying damping force towards the first operation unit to block the rotation of the first operation unit; the second driving module comprises a second operation unit, a second damping unit and a second rotating wheel, the second operation unit is rotatably sleeved on the first operation unit, the second rotating wheel is connected with the second operation unit and is rotatably sleeved on the main shaft, the second rotating wheel and the first rotating wheel are arranged at intervals along the axial direction of the main shaft, the second rotating wheel is matched with a second driving wire for controlling the snake bone to bend along the second direction, and the second damping unit is used for applying damping force towards the second operation unit to block the second operation unit from rotating; the third driving module is rotatably connected to the shell and sleeved on the main shaft, and is in transmission fit with the bench clamp device to drive the bench clamp device to open or close.

In some embodiments, the first operation unit includes a first hand wheel having a first mounting cavity, and the first damping unit is disposed in the first mounting cavity and is capable of pressing a bottom wall of the first mounting cavity to prevent the first hand wheel from rotating; the first hand wheel also comprises a first sleeve, and the first sleeve is sleeved on the main shaft and connected with the first rotating wheel.

In some specific embodiments, the first damping unit includes: the rotating locking component is sleeved on the main shaft; the first locking disc is fixedly sleeved on the rotary locking assembly, and a first cam part is arranged on the first locking disc; the first locking cam is sleeved on the rotary locking assembly and can move along the axial direction of the main shaft relative to the rotary locking assembly, and a first cam groove matched with the first cam part is formed in the first locking cam; the first damping piece is sleeved on the rotation locking assembly and is clamped between the bottom wall of the first mounting cavity and the first locking cam; wherein: and in the rotating process of the rotating locking assembly, the first cam part can move in the first cam groove, so that the first locking cam can lift along the axial direction of the main shaft to press or loosen the first damping piece.

In some more specific embodiments, the rotational locking assembly comprises: the locking adjusting piece is sleeved on the main shaft and is provided with a stopping convex ring; the locknut is connected to the main shaft through threads and is stopped against the locking adjusting piece; the brake disc is fixedly sleeved on the first locking disc, and the upper end of the brake disc is propped against the propping convex ring; the locking cap is fixedly sleeved on the brake disc, and an operation knob is arranged on the outer surface of the locking cap.

In some embodiments, the second operation unit includes a knob shaft, the knob shaft is sleeved on the first operation unit and can rotate relative to the first operation unit, the knob shaft has a second installation cavity, and the second damping unit is arranged in the second installation cavity and can press the top wall of the second installation cavity to block the rotation of the knob shaft; the knob shaft further comprises a second sleeve, and the second sleeve is sleeved on the first operation unit and connected with the second rotating wheel.

In some specific embodiments, the bending opening and closing control mechanism further comprises a hub cover, wherein the hub cover is buckled at the upper end of the shell; the second damping unit includes: the second locking disc is sleeved on the hub cover and can rotate relative to the hub cover, and a second cam part is arranged on the second locking disc; the locking operation disc is fixedly sleeved on the second locking disc and provided with a locking operation rod; the second locking cam is sleeved on the hub cover and can move along the axial direction of the main shaft relative to the hub cover, and the second locking cam is provided with a second cam groove matched with the second cam part; the second damping piece is sleeved on the second operation unit and is clamped between the top wall of the second installation cavity and the second locking cam; wherein: and in the rotation process of the second locking disc, the second cam part can move in the second cam groove, so that the second locking cam can lift along the axial direction of the main shaft to press or loosen the second damping piece.

In some specific embodiments, the second operation unit further includes: the second hand wheel is fixedly sleeved on the knob shaft; the locking adjusting cover is sleeved on the outer peripheral wall of the knob shaft and is in threaded connection with the knob shaft, and the locking adjusting cover is provided with an adjusting convex ring which is stopped against the second locking disc.

In some embodiments, the bending opening and closing control mechanism further comprises a hub cover, wherein the hub cover is buckled at the upper end of the shell; the third driving module includes: a third operating unit rotatably provided on the hubcap; and the power input end of the transmission mechanism is matched with the third operation unit, and the power output end of the transmission mechanism is connected with a third driving wire for controlling the opening and closing of the bench clamp.

In some specific embodiments, the third operation unit includes: the bench clamp rotating wheel is rotatably sleeved on the hub cover and provided with a driving protrusion; the bench clamp operating disc is fixedly sleeved on the bench clamp rotating wheel and provided with a bench clamp operating rod; the circular cover is sleeved on the bench clamp rotating wheel and is stopped against the bottom wall of the bench clamp operating disc; the transmission mechanism comprises a connecting rod and a sliding block, the sliding block is connected with the third driving wire and is in sliding fit with a sliding groove in the shell, one end of the connecting rod is rotatably connected with the driving protrusion, and the other end of the connecting rod is rotatably connected with the sliding block.

The invention also discloses an endoscope, which is characterized in that the bending opening and closing control mechanism, the snake bone and the bench clamp device are respectively matched with the snake bone and the bench clamp device, and can drive the snake bone to bend along a first direction or a second direction and drive the bench clamp device to open or close.

The bending opening and closing control mechanism of the embodiment has the beneficial effects that: because the first driving module, the second driving module and the third driving module of the bending opening and closing control mechanism are all arranged on the main shaft in a penetrating mode, the first operation unit, the second operation unit and the third driving module are coaxially arranged, compared with the prior art, the bending knobs for controlling the snake bones to face different directions and the bending knobs for controlling the opening and closing of the clamp devices are integrated at different positions of the shell, the bending opening and closing control mechanism of the embodiment is used for arranging the first driving module, the second driving module and the third driving module for controlling the opening and closing of the snake bones to face the bending directions on the same main shaft, occupies a small space, is high in integration level, and is convenient to assemble and operate by personnel. In addition, in the actual operation process, because the existence of the first damping unit and the second damping unit can avoid the first operation unit and the second operation unit to drive the first rotating wheel and the second rotating wheel to rotate simultaneously, accidental injury to a patient is avoided.

The endoscope has the beneficial effects that: due to the fact that the bending opening and closing control mechanism is arranged, the endoscope is high in integration degree, convenient to assemble, convenient to operate by personnel and capable of improving operation comfort.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a bending opening and closing control mechanism according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of a flexure opening/closing control mechanism in accordance with an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of a first drive module and a spindle according to an embodiment of the present invention;

FIG. 4 is an exploded view of a first driving module according to an embodiment of the present invention;

FIG. 5 is a partial cross-sectional view of a second drive module and spindle according to an embodiment of the present invention;

FIG. 6 is an exploded view of a second driving module according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a third driving module according to an embodiment of the invention;

FIG. 8 is a schematic view of a first bending direction of a snake bone according to an embodiment of the invention;

fig. 9 is a schematic view of a second bending direction of a snake bone according to an embodiment of the invention.

Reference numerals:

100. a housing; 110. a hub cap; 120. a bottom plate;

200. a main shaft; 210. a stop protrusion;

300. a first driving module; 310. a first operation unit; 311. a first mounting cavity; 312. a first sleeve; 320. a first damping unit; 321. rotating the locking assembly; 3211. a locking adjusting member; 32111. a stop convex ring; 3212. a locknut; 3213. a brake disc; 3214. a locking cap; 32141. operating a knob; 322. a first locking plate; 3221. a first cam portion; 323. a first locking cam; 3231. a first cam groove; 324. a first damping member; 330. a first wheel;

400. a second driving module; 410. a second operation unit; 411. a knob shaft; 4111. a second mounting cavity; 4112. a second sleeve; 412. the second hand wheel; 413. locking the adjusting cover; 4131. adjusting the convex ring; 420. a second damping unit; 421. a second locking plate; 4211. a second cam portion; 422. locking an operation panel; 4221. locking the operating rod; 423. a second locking cam; 4231. a second cam groove; 424. a second damping member; 430. a second wheel;

500. a third driving module; 510. a third operation unit; 511. bench clamp rotating wheel; 5111. driving the protrusion; 512. a vice operating panel; 5121. a vice operating lever; 513. a dome; 520. a transmission mechanism; 521. a connecting rod; 522. a slide block;

600. A first lubrication pad; 700. a second lubrication pad; 10. snake bone.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; 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 invention will be understood in specific cases by those of ordinary skill in the art.

The specific structure of the bending opening and closing control mechanism of the embodiment of the present invention is described below with reference to fig. 1 to 9.

A bending opening and closing control mechanism for driving a snake bone 10 of an endoscope to bend in a first direction or a second direction and for driving a vise of the endoscope to open or close is disclosed. In the description of the present specification, the first direction is the left-right direction of the snake bone 10 as shown in fig. 8, and the second direction is the up-down left-right direction as shown in fig. 9. Of course, in the actual working process, the first direction and the second direction may be set according to actual needs, and are not limited to the above directions.

As shown in fig. 1 and 2, the bending opening and closing control mechanism of the present embodiment includes a housing 100, a main shaft 200, a first driving module 300, a second driving module 400 and a third driving module 500, the main shaft 200 is mounted on the housing 100, a bottom plate 120 is disposed in the housing 100, the main shaft 200 is disposed through the bottom plate 120, and a stopping protrusion 210 stopping on the bottom plate 120 is disposed at the bottom of the main shaft 200. The first driving module 300 includes a first operating unit 310, a first damping unit 320 and a first rotating wheel 330, the first operating unit 310 is rotatably sleeved on the spindle 200, the first rotating wheel 330 is connected with the first operating unit 310 and rotatably sleeved on the spindle 200, the first rotating wheel 330 is matched with a first driving wire for controlling the snake bone 10 to bend along a first direction, the first damping unit 320 is used for applying a damping force towards the first operating unit 310 to block the first operating unit 310 from rotating, the second driving module 400 includes a second operating unit 410, a second damping unit 420 and a second rotating wheel 430, the second operating unit 410 is rotatably sleeved on the first operating unit 310, the second rotating wheel 430 is connected with the second operating unit 410 and rotatably sleeved on the spindle 200, the second rotating wheel 430 is matched with a second driving wire for controlling the snake bone 10 to bend along a second direction, the second damping unit 420 is used for applying a damping force towards the second operating unit 410 to block the second operating unit 410 from rotating, the third driving module 500 is rotatably connected with the first operating unit 310 and is matched with the third driving module 500 or the third driving module 500 to be matched with the spindle 200.

It can be understood that the first driving module 300, the second driving module 400 and the third driving module 500 are all arranged on the main shaft 200 in a penetrating manner, and the first operation unit 310, the second operation unit 410 and the third driving module 500 are coaxially arranged.

It should be noted that, in the actual operation process, due to the existence of the first damping unit 320 and the second damping unit 420, the first operation unit 310 and the second operation unit 410 can be prevented from simultaneously driving the first rotating wheel 330 and the second rotating wheel 430 to rotate, so as to avoid accidental injury to the patient. Specifically, if it is required to drive the snake bone 10 to bend in the first direction, it is required that the operator adjusts the first damping unit 320 not to apply resistance to the first operation unit 310 to block the rotation thereof and adjusts the second damping unit 420 to apply resistance to the second operation unit 410 to block the rotation thereof, whereby the snake bone 10 is not rotated in the second direction even if the second operation unit 410 is erroneously triggered when the first operation unit 310 is operated to drive the snake bone 10 to bend in the first direction; if it is desired to drive the snake bone 10 to bend in the second direction, the operator is required to adjust the second damping unit 420 to no longer apply resistance to the second operation unit 410 to block the rotation thereof and adjust the first damping unit 320 to apply resistance to the first operation unit 310 to block the rotation thereof, whereby the snake bone 10 is not rotated in the first direction even if the first operation unit 310 is erroneously triggered when the second operation unit 410 is operated to drive the snake bone 10 to bend in the second direction.

Optionally, the spindle 200 is sleeved with a first lubrication pad 600, and the first lubrication pad 600 is located between the first operation unit 310 and the second operation unit 410. The first lubricating spacer 600 is added to prevent the first operating unit 310 and the second operating unit 410 from being rubbed with each other by a large amount to affect the normal rotation of both. It should be noted that, in the embodiment of the present invention, the specific material of the first lubricating pad 600 and the lubrication effect may be selected according to actual needs, and the parameters of the first lubricating pad 600 are not limited herein.

Optionally, a second lubrication pad 700 is sleeved on the spindle 200, and the second lubrication pad 700 is located between the first rotating wheel 330 and the second rotating wheel 430. The added second lubrication pad 700 can avoid the influence of the normal rotation of the first runner 330 and the second runner 430 due to the occurrence of larger friction between the two. In this embodiment of the present invention, the specific material of second lubricating pad 700 and the lubrication effect may be selected according to actual needs, and the parameters of second lubricating pad 700 are not limited herein.

Referring to fig. 3 to 4, the first operating unit 310 includes a first hand wheel having a first mounting cavity 311, and the first damping unit 320 is provided in the first mounting cavity 311 and can press the bottom wall of the first mounting cavity 311 to prevent the first hand wheel from rotating; the first hand wheel further comprises a first sleeve 312, and the first sleeve 312 is sleeved on the main shaft 200 and connected with the first rotating wheel 330. It will be appreciated that the first hand wheel is used as the first operation unit 310, and in the actual operation process, the user only needs to rotate the first hand wheel, and since the first sleeve 312 of the first hand wheel is connected to the first rotation wheel 330, the rotation of the first rotation wheel 330 can be controlled during the rotation of the first hand wheel, so as to drive the snake bone 10 to bend along the first direction. Therefore, the operation mode of the first operation unit 310 is simplified, the user operation is facilitated, and the user operation comfort level is improved. In this embodiment, the outer peripheral surface of the first hand wheel for the user to operate may be provided with a plurality of protrusions or roughened, so as to increase friction between the user and the first hand wheel and avoid slipping.

Meanwhile, since the first damping unit 320 is disposed in the first mounting cavity 311, in the actual working process, when the first damping unit 320 is pressed against the bottom wall of the first mounting cavity 311, the friction force between the first damping unit 320 and the bottom wall of the first mounting cavity 311 is large, that is, a very large external force is required for driving the first hand wheel at this time, and the external force applied to the first hand wheel by the false touch is relatively small in the operating process, so that it is ensured that the snake bone 10 will not rotate in the first direction even if the first hand wheel is triggered by the false touch when the second operating unit 410 is operated to drive the snake bone 10 to bend in the second direction.

Further, as shown in fig. 3-4, the first damping unit 320 includes a rotation locking assembly 321, a first locking disc 322, a first locking cam 323 and a first damping member 324, the rotation locking assembly 321 is sleeved on the spindle 200, the first locking disc 322 is fixedly sleeved on the rotation locking assembly 321, a first cam portion 3221 is provided on the first locking disc 322, the first locking cam 323 is sleeved on the rotation locking assembly 321 and can move along the axial direction of the spindle 200 relative to the rotation locking assembly 321, a first cam groove 3231 matched with the first cam portion 3221 is provided on the first locking cam 323, and the first damping member 324 is sleeved on the rotation locking assembly 321 and is clamped between the bottom wall of the first mounting cavity 311 and the first locking cam 323. During rotation of the rotation lock assembly 321, the first cam portion 3221 is capable of moving within the first cam groove 3231 such that the first lock cam 323 is lifted in the axial direction of the main shaft 200 to press or release the first damping member 324.

It will be appreciated that, in actual operation, when an external force acts on the rotational locking assembly 321, the rotational locking assembly 321 can drive the first locking plate 322 to rotate, the first cam portion 3221 on the first locking plate 322 can move in the first cam groove 3231, the bottom wall of the first cam groove 3231 has a highest point and a lowest point, and when the first cam portion 3221 moves from the lowest point to the highest point, the first locking cam 323 descends along the axial direction of the spindle 200 to press the first damping member 324, so that the first damping member 324 is pressed against the bottom wall of the first mounting cavity 311, so as to promote friction force between the first damping member 324 and the first hand wheel and block the first hand wheel from rotating. When the first cam portion 3221 moves from the highest point to the lowest point, the pressure acting on the first damping member 324 is gradually reduced, the first damping member 324 is gradually released, the first locking cam 323 is raised under the elastic force of the first damping member 324, and the friction force between the first damping member 324 and the first hand wheel is gradually reduced, so that the first hand wheel can smoothly rotate under the action of external force. The first damping piece 324 is tightly pressed and released through the first locking disc 322 and the first locking cam 323, so that the first hand wheel is locked and released, the structure is very simple, the operation is convenient, the use experience of a user is improved, and the manufacturing cost of the first damping unit 320 is reduced.

Alternatively, the first cam portions 3221 are plural, the plural first cam portions 3221 are distributed at intervals along the circumferential direction of the first locking disc 322, and the first cam grooves 3231 are plural and are in one-to-one correspondence fit with the plural first cam portions 3221. It can be understood that the first locking cam 323 is driven to move simultaneously by the plurality of first cam portions 3221, so that the first locking cam 323 can be ensured to be always kept horizontal in the ascending and descending processes, and the phenomenon that the first damping piece 324 cannot press the first hand wheel due to the skew of the first locking cam 323 is avoided.

It should be noted that, in the embodiment of the present invention, the specific material of the first damping member 324 and the damping effect may be selected according to actual needs, and the parameters of the first damping member 324 are not limited herein.

Further, as shown in fig. 3-4, the rotary locking assembly 321 includes a locking adjuster 3211, a locknut 3212, a brake disc 3213 and a locking cap 3214, the locking adjuster 3211 is sleeved on the spindle 200, the locking adjuster 3211 has a locking convex ring 32111, the locknut 3212 is connected to the spindle 200 through threads and is locked on the locking adjuster 3211, the brake disc 3213 is fixedly sleeved on the first locking disc 322, the upper end of the brake disc 3213 is locked on the locking convex ring 32111, the locking cap 3214 is fixedly sleeved on the brake disc 3213, and the outer surface of the locking cap 3214 has an operation knob 32141. It can be appreciated that in the actual operation process, the user only needs to rotate the operation knob 32141, so that the brake disc 3213 can be driven to rotate to drive the first locking disc 322 to rotate, and the direction of rotating the operation knob 32141 is very convenient, so that the use experience of the user is improved. In this embodiment, the outer peripheral surface of the operation knob 32141 for the user to operate may be provided with a plurality of protrusions or roughened, so as to increase friction between the user and the operation knob 32141 and avoid occurrence of slipping.

It should be noted that, as described above, the force that resists rotation of the first hand wheel is derived from the frictional force with the first damping member 324. Thus, the more the first locking cam 323 descends, the greater the pressure of the first locking cam 323 against the first damping member 324, the greater the resistance of the first damping member 324 against the first hand wheel, but the maximum amount of deformation of the first damping member 324, i.e., the maximum amount of travel of the first locking cam 323 in a downward direction. The larger the stroke of the first locking cam 323, the larger the rotation angle at which the first locking disk 322 drives the first locking cam 323 to move to the maximum stroke. In this embodiment, the lock adjuster 3211 is driven to move downward during the process of rotating the locknut 3212, and the stop convex ring 32111 of the lock adjuster 3211 drives the brake disc 3213 to move downward, so that the first locking disc 322 also moves downward, and thus the first damping member 324 is pressed downward by the first locking cam 323. Thus, in the actual operation, the more the locknut 3212 is screwed in, the larger the initial deformation amount of the first damping member 324 without rotating the first locking disk 322, the smaller the stroke of the first locking cam 323 when rotating the first locking disk 322, and the smaller the rotation angle at which the first locking disk 322 drives the first locking cam 323 to move to the maximum stroke. That is, the more the locknut 3212 is screwed in, the smaller the angle that the operating knob 32141 needs to be turned when locking the first hand wheel. In the actual working process, the locknut 3212 can be adjusted according to actual needs, so that the angle of the operation knob 32141 is required to be rotated when the first hand wheel is controlled to be locked, and the user experience is improved.

Of course, in other embodiments of the present invention, the detachable pin may be provided, and the locking and releasing of the first hand wheel may be achieved by inserting and pulling the pin, that is, in other embodiments of the present invention, the structure of the first damping unit 320 may be adjusted according to actual needs, and is not limited to the structure that the first locking disc 322 cooperates with the first locking cam 323.

Referring to fig. 5 to 6, the second operation unit 410 includes a knob shaft 411, the knob shaft 411 is sleeved on the first operation unit 310 and can rotate relative to the first operation unit 310, the knob shaft 411 has a second installation cavity 4111, and the second damping unit 420 is disposed in the second installation cavity 4111 and can press the top wall of the second installation cavity 4111 to block the rotation of the knob shaft 411; the knob shaft 411 further includes a second sleeve 4112, where the second sleeve 4112 is sleeved on the first operating unit 310 and is connected to the second rotating wheel 430. It can be appreciated that, by adopting the knob shaft 411 as the second operation unit 410, the user only needs to rotate the knob shaft 411 during the actual operation, and the second sleeve 4112 of the knob shaft 411 is connected to the second rotating wheel 430, so that the second rotating wheel 430 can be controlled to rotate during the rotation of the knob shaft 411, thereby driving the snake bone 10 to bend along the second direction. Thereby, the operation mode of the second operation unit 410 is simplified, the user operation is facilitated, and the user operation comfort is improved.

Meanwhile, since the second damping unit 420 is disposed in the second installation cavity 4111, in the actual working process, when the second damping unit 420 is pressed against the bottom wall of the second installation cavity 4111, the friction force between the second damping unit 420 and the bottom wall of the second installation cavity 4111 is large, that is, a very large external force is required to drive the knob shaft 411 at this time, and the external force applied to the knob shaft 411 by the false touch is relatively small in the operating process, so that the snake bone 10 cannot rotate in the second direction even if the knob shaft 411 is triggered by the false touch when the first operating unit 310 is operated to drive the snake bone 10 to bend in the first direction.

Further, as shown in fig. 2 and 5-6, the bending opening and closing control mechanism further comprises a hub cover 110, wherein the hub cover 110 is buckled at the upper end of the housing 100; the second damping unit 420 includes a second locking plate 421, a locking operation plate 422, a second locking cam 423 and a second damping member 424, the second locking plate 421 is sleeved on the hub cover 110 and can rotate relative to the hub cover 110, a second cam portion 4211 is disposed on the second locking plate 421, the locking operation plate 422 is fixedly sleeved on the second locking plate 421, the locking operation plate 422 has a locking operation rod 4221, the second locking cam 423 is sleeved on the hub cover 110 and can move relative to the hub cover 110 along the axial direction of the spindle 200, the second locking cam 423 has a second cam groove 4231 matched with the second cam portion 4211, the second damping member 424 is sleeved on the second operation unit 410, and is clamped between the top wall of the second mounting cavity 4111 and the second locking cam 423. During rotation of the second locking disk 421, the second cam portion 4211 can move within the second cam groove 4231 such that the second locking cam 423 is lifted in the axial direction of the main shaft 200 to press or release the second damper 424.

It will be appreciated that the hub cap 110 can be lifted to stably support the entire second drive module 400, ensuring that the second drive module 400 can be stably rotated. In actual operation, when an external force acts on the locking lever 4221, the locking operation plate 422 can drive the second locking plate 421 to rotate. The rotation of the second locking disk 421 is achieved by operating the locking lever 4221, which can facilitate the user's operation, thereby facilitating the user's adjustment of the second damping unit 420. When the second locking disk 421 rotates, the second cam portion 4211 on the second locking disk 421 can move in the second cam groove 4231, the bottom wall of the second cam groove 4231 has the highest point and the lowest point, and when the second cam portion 4211 moves from the lowest point to the highest point, the second locking cam 423 ascends along the axial direction of the main shaft 200 to press the second damping member 424, so that the second damping member 424 is pressed against the top wall of the second mounting cavity 4111 to raise the friction force between the second damping member 424 and the second hand wheel 412, and the knob shaft 411 is blocked from rotating. When the second cam 4211 moves from the highest point to the lowest point, the pressure acting on the second damper 424 is gradually reduced, the second damper 424 is gradually released, the second locking cam 423 is lowered by the elastic force of the second damper 424, and the friction between the second damper 424 and the knob shaft 411 is gradually reduced, thereby enabling the knob shaft 411 to smoothly rotate under the action of external force. The second damping member 424 is tightly pressed and released through the second locking disk 421 and the second cam portion 4211, so that the knob shaft 411 is locked and released, the structure is very simple, the operation is convenient, the use experience of a user is improved, and the manufacturing cost of the second damping unit 420 is reduced.

In this embodiment, the outer peripheral surface of the locking lever 4221 for the user to operate may be provided with a plurality of protrusions or roughened, so as to increase friction between the user and the locking lever 4221 and avoid occurrence of slipping.

Alternatively, the second cam portions 4211 are plural, the plural second cam portions 4211 are distributed at intervals along the circumferential direction of the second locking disk 421, and the plural second cam grooves 4231 are in one-to-one correspondence fit with the plural second cam portions 4211. It can be appreciated that the second locking cam 423 is simultaneously driven to move by the plurality of second cam portions 4211, so that the second locking cam 423 can be ensured to be always kept horizontal in the ascending and descending processes, and the phenomenon that the second damping member 424 cannot press the knob shaft 411 due to the skew of the second locking cam 423 is avoided.

It should be noted that, in the embodiment of the present invention, the specific material of the second damping member 424 and the damping effect may be selected according to actual needs, and the parameters of the second damping member 424 are not limited herein.

Further, the second operation unit 410 further includes a second hand wheel 412 and a locking adjustment cover 413, the second hand wheel 412 is fixedly sleeved on the knob shaft 411, the locking adjustment cover 413 is sleeved on the outer peripheral wall of the knob shaft 411 and is in threaded connection with the knob shaft 411, and the locking adjustment cover 413 has an adjustment convex ring 4131 abutting against the second locking disk 421. It can be understood that the second hand wheel 412 is sleeved outside the knob shaft 411, and in the actual operation process, the user only needs to rotate the second hand wheel 412 to drive the knob shaft 411 to rotate, and in the rotation process of the knob shaft 411, the second rotating wheel 430 can be controlled to rotate, so as to drive the snake bone 10 to bend along the second direction. Compared with the mode of directly rotating the knob shaft 411, the second hand wheel 412 is adopted as a part contacted with a user, so that the user operation is facilitated, and the user operation comfort level is improved. In this embodiment, the outer peripheral surface of the second hand wheel 412 for the user to operate may be provided with a plurality of protrusions or roughened, so as to increase the friction between the user and the second hand wheel 412 and avoid slipping.

It should be noted that, according to the foregoing, the force blocking the rotation of the knob shaft 411 comes from the friction force with the second damper 424. Therefore, the more the second locking cam 423 is raised, the greater the pressing of the second locking cam 423 against the second damper 424, the greater the resistance of the second damper 424 against the knob shaft 411, but the maximum amount of deformation of the second damper 424, that is, the maximum amount of upward movement of the second locking cam 423. The larger the stroke of the second locking cam 423, the larger the rotation angle at which the second locking disk 421 drives the second locking cam 423 to move to the maximum stroke. In the present embodiment, in the process of rotating the locking adjustment cover 413 to be raised with respect to the knob shaft 411, since the locking adjustment cover 413 has the adjustment collar 4131 stopped against the second locking disk 421, the adjustment collar 4131 can drive the second locking disk 421 to move upward, so that the second damping member 424 is pressed upward by the second locking cam 423. Thus, in the actual operation, the more the locking adjustment cover 413 is rotated, the larger the initial deformation amount of the second damper 424 without rotating the second locking disk 421, the smaller the stroke of the second locking cam 423 when rotating the second locking disk 421, and the smaller the rotation angle at which the second locking disk 421 drives the second locking cam 423 to the maximum stroke. That is, the more the lock adjustment cover 413 is screwed in, the smaller the angle at which the lock operation lever 4221 needs to be turned when the knob shaft 411 is locked. In the actual working process, the locking adjusting cover 413 can be adjusted according to actual needs, so that the locking operating rod 4221 is required to be rotated when the locking knob shaft 411 is controlled, and the user experience is improved.

Of course, in other embodiments of the present invention, the detachable pin may be provided, and the locking and releasing of the knob shaft 411 may be achieved by inserting and pulling the pin, that is, in other embodiments of the present invention, the structure of the second damping unit 420 may be adjusted according to actual needs, and is not limited to the structure of the second locking disk 421 matching with the second locking cam 423.

Referring to fig. 7, the bending opening and closing control mechanism further includes a hub cap 110, and the hub cap 110 is fastened to the upper end of the housing 100; the third driving module 500 includes a third operating unit 510 and a transmission mechanism 520, the third operating unit 510 is rotatably disposed on the hub cover 110, a power input end of the transmission mechanism 520 is matched with the third operating unit 510, and a power output end is connected with a third driving wire for controlling opening and closing of the vise. It can be appreciated that, in the actual working process, only the third operation unit 510 needs to be turned to drive the transmission mechanism 520 to pull the third driving wire to move, so that the operation is very convenient, and the user experience is improved.

Further, the third operation unit 510 includes a vise wheel 511, a vise operation plate 512 and a dome 513, the vise wheel 511 is rotatably sleeved on the hub cap 110, a driving protrusion 5111 is provided on the vise wheel 511, the vise operation plate 512 is fixedly sleeved on the vise wheel 511, the vise operation plate 512 has a vise operation rod 5121, and the dome 513 is sleeved on the vise wheel 511 and is abutted against the bottom wall of the vise operation plate 512; the transmission mechanism 520 includes a link 521 and a slider 522, the slider 522 is connected to the third driving wire and slidably engaged with a sliding groove in the housing 100, one end of the link 521 is rotatably connected to the driving protrusion 5111, and the other end is rotatably connected to the slider 522. It can be appreciated that in the actual working process, the vice operating disc 512 is rotated to drive the vice rotating wheel 511 to rotate, so that the connecting rod 521 can drive the sliding block 522 to slide in the sliding groove of the housing 100, and the sliding block 522 is connected with the third driving wire, so that the opening and closing of the vice can be realized in the process that the third driving wire is pulled, and the opening and closing of the vice can be realized through the crank sliding block 522 mechanism, so that the driving structure is simpler, the operation form is more convenient, and the user experience is facilitated to be promoted.

Of course, it should be noted that, in other embodiments of the present invention, the transmission mechanism 520 may be replaced by other structures, which is not limited to the present application. In some embodiments, the transmission mechanism 520 may not be provided, and the vice rotating wheel 511 is directly matched with the third driving wire, so that the third driving wire is directly pulled to move when the vice operating panel 512 is rotated to drive the vice rotating wheel 511 to rotate.

The bending opening and closing control mechanism of the present embodiment has the following advantages:

first: the first operation unit 310, the second operation unit 410 and the third operation unit 510 are coaxially arranged, and the first driving module 300, the second driving module 400 and the third driving module 500 for controlling the opening and closing of the snake bone 10 along two directions are arranged on the same main shaft 200, so that the small space is occupied, the integration level is high, and the assembly and the personnel operation are convenient;

second,: the first damping unit 320 is configured to apply a damping force to the first wheel to block the rotation of the first wheel, and the second damping unit 420 is configured to apply a damping force to the knob shaft 411 to block the rotation of the knob shaft 411, so that in an actual working process, the first operating unit 310 and the second operating unit 410 can be prevented from simultaneously driving the first rotating wheel 330 and the second rotating wheel 430 to rotate, thereby avoiding accidental injury to a patient;

Third,: because the parts of the first operation unit 310 for the user to operate are the first hand wheel, and the parts of the second operation unit 410 for the user to operate are the second hand wheel 412, in the actual operation process, the snake bone 10 is driven to bend along the first direction by rotating the first hand wheel, and the snake bone 10 is driven to bend along the second direction by rotating the second hand wheel 412, so that the operation comfort is higher and the operation is more convenient.

Fourth,: because the parts of the first operation unit 310 for the user to operate are the operation knob 32141, and the parts of the second operation unit 410 for the user to operate are the locking operation lever 4221, in the actual operation process, the locking and the anti-loosening of the first hand wheel are realized by rotating the operation knob 32141, and the locking and the anti-loosening of the second hand wheel 412 are realized by stirring the locking operation lever 4221, so that the operation comfort is higher and the operation is more convenient;

fifth,: in the actual operation process, the locknut 3212 can be adjusted according to actual needs, the angle of the operation knob 32141 needs to be rotated when the first hand wheel is controlled to be locked, and the locking adjustment cover 413 is adjusted according to actual needs, so that the angle of the locking operation rod 4221 needs to be rotated when the locking knob shaft 411 is controlled, and the operation comfort level is improved.

The invention also discloses an endoscope, the bending opening and closing control mechanism of the endoscope, the snake bone 10 and the bench clamp device, wherein the bending opening and closing control mechanism is respectively matched with the snake bone 10 and the bench clamp device, and can drive the snake bone 10 to bend along a first direction or a second direction and drive the bench clamp device to open or close. The endoscope has the advantages that the bending opening and closing control mechanism is arranged, so that the endoscope is high in integration degree, convenient to assemble, convenient for personnel to operate and capable of improving operation comfort.

It should be noted that the structures of the snake bone 10 and the vise are common structures of the endoscope, and the structures of the snake bone 10 and the vise need not be specifically limited.

In the description of the present specification, reference to the term "some embodiments," "other embodiments," 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 invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.

Claims

1. A bending opening and closing control mechanism for driving a snake bone (10) of an endoscope to bend in a first direction or a second direction and for driving a vise of the endoscope to open or close, the bending opening and closing control mechanism comprising:

a housing (100);

a spindle (200), the spindle (200) being mounted to the housing (100);

the first driving module (300), the first driving module (300) comprises a first operation unit (310), a first damping unit (320) and a first rotating wheel (330), the first operation unit (310) is rotatably sleeved on the main shaft (200), the first rotating wheel (330) is connected with the first operation unit (310) and rotatably sleeved on the main shaft (200), the first rotating wheel (330) is matched with a first driving wire for controlling the snake bone (10) to bend along the first direction, and the first damping unit (320) is used for applying damping force towards the first operation unit (310) to block the first operation unit (310) from rotating;

The second driving module (400), the second driving module (400) comprises a second operation unit (410), a second damping unit (420) and a second rotating wheel (430), the second operation unit (410) is rotatably sleeved on the first operation unit (310), the second rotating wheel (430) is connected with the second operation unit (410) and rotatably sleeved on the main shaft (200), the second rotating wheel (430) and the first rotating wheel (330) are arranged at intervals along the axial direction of the main shaft (200), the second rotating wheel (430) is matched with a second driving wire for controlling the snake bone (10) to bend along the second direction, and the second damping unit (420) is used for applying damping force towards the second operation unit (410) to block the rotation of the second operation unit (410).

The third driving module (500), the third driving module (500) is rotatably connected to the shell (100) and sleeved on the main shaft (200), and the third driving module (500) is in transmission fit with the vice device to drive the vice device to open or close.

2. The bending opening and closing control mechanism according to claim 1, wherein the first operating unit (310) includes a first hand wheel having a first mounting cavity (311), the first damping unit (320) being provided in the first mounting cavity (311) and being capable of pressing a bottom wall of the first mounting cavity (311) to prevent the first hand wheel from rotating;

The first hand wheel further comprises a first sleeve (312), and the first sleeve (312) is sleeved on the main shaft (200) and connected with the first rotating wheel (330).

3. The bending opening and closing control mechanism according to claim 2, wherein the first damping unit (320) includes:

the rotating locking assembly (321) is sleeved on the main shaft (200);

the first locking disc (322) is fixedly sleeved on the rotating locking assembly (321), and a first cam part (3221) is arranged on the first locking disc (322);

the first locking cam (323), the first locking cam (323) is sleeved on the rotation locking assembly (321) and can move along the axial direction of the main shaft (200) relative to the rotation locking assembly (321), and a first cam groove (3231) matched with the first cam part (3221) is formed in the first locking cam (323);

the first damping piece (324) is sleeved on the rotation locking assembly (321) and is clamped between the bottom wall of the first mounting cavity (311) and the first locking cam (323); wherein:

during rotation of the rotation locking assembly (321), the first cam portion (3221) can move in the first cam groove (3231) so that the first locking cam (323) is lifted along the axial direction of the main shaft (200) to press or release the first damping member (324).

4. A bending opening and closing control mechanism according to claim 3, characterized in that the rotation lock assembly (321) comprises:

the locking adjusting piece (3211), the locking adjusting piece (3211) is sleeved on the main shaft (200), and the locking adjusting piece (3211) is provided with a stopping convex ring (32111);

a locknut (3212), wherein the locknut (3212) is connected to the main shaft (200) through threads and is abutted against the locking adjusting piece (3211);

the brake disc (3213), the brake disc (3213) is fixedly sleeved on the first locking disc (322), and the upper end of the brake disc (3213) is abutted against the abutment convex ring (32111);

the locking cap (3214) is fixedly sleeved on the brake disc (3213), and an operation knob (32141) is arranged on the outer surface of the locking cap (3214).

5. The bending opening and closing control mechanism according to claim 1, wherein the second operation unit (410) includes a knob shaft (411), the knob shaft (411) is sleeved on the first operation unit (310) and can rotate relative to the first operation unit (310), the knob shaft (411) has a second installation cavity (4111), and the second damping unit (420) is disposed in the second installation cavity (4111) and can press a top wall of the second installation cavity (4111) to block the rotation of the knob shaft (411);

The knob shaft (411) further comprises a second sleeve (4112), and the second sleeve (4112) is sleeved on the first operation unit (310) and is connected with the second rotating wheel (430).

6. The bending opening and closing control mechanism according to claim 5, further comprising a hub cap (110), the hub cap (110) being snap-fitted to an upper end of the housing (100);

the second damping unit (420) includes:

the second locking disc (421) is sleeved on the hub cover (110) and can rotate relative to the hub cover (110), and a second cam part (4211) is arranged on the second locking disc (421);

the locking operation disc (422), the locking operation disc (422) is fixedly sleeved on the second locking disc (421), and the locking operation disc (422) is provided with a locking operation rod (4221);

a second locking cam (423), wherein the second locking cam (423) is sleeved on the hub cover (110) and can move along the axial direction of the main shaft (200) relative to the hub cover (110), and the second locking cam (423) is provided with a second cam groove (4231) matched with the second cam part (4211);

the second damping piece (424), the second damping piece (424) is sleeved on the second operation unit (410), and is clamped between the top wall of the second mounting cavity (4111) and the second locking cam (423); wherein:

During rotation of the second locking disk (421), the second cam portion (4211) is movable in the second cam groove (4231) such that the second locking cam (423) is lifted in an axial direction of the main shaft (200) to press or release the second damper (424).

7. The bending opening and closing control mechanism according to claim 6, characterized in that the second operation unit (410) further includes:

the second hand wheel (412), the second hand wheel (412) is fixedly sleeved on the knob shaft (411);

the locking adjusting cover (413), the outer peripheral wall that locks adjusting cover (413) cover to locate knob axle (411) and with knob axle (411) threaded connection, locking adjusting cover (413) have stop in adjusting bulge loop (4131) of second locking dish (421).

8. The bending opening and closing control mechanism according to claim 1, further comprising a hub cap (110), the hub cap (110) being snap-fitted to an upper end of the housing (100); the third driving module (500) includes:

a third operation unit (510), the third operation unit (510) being rotatably provided on the hub cover (110);

and the power input end of the transmission mechanism (520) is matched with the third operation unit (510), and the power output end of the transmission mechanism (520) is connected with a third driving wire for controlling the opening and closing of the bench clamp.

9. The bending opening and closing control mechanism according to claim 8, wherein the third operation unit (510) includes:

the bench clamp rotating wheel (511) is rotatably sleeved on the hub cover (110), and a driving protrusion (5111) is arranged on the bench clamp rotating wheel (511);

a vice operating plate (512), wherein the vice operating plate (512) is fixedly sleeved on the vice rotating wheel (511), and the vice operating plate (512) is provided with a vice operating rod (5121);

the circular cover (513) is sleeved on the bench clamp rotating wheel (511) and is abutted against the bottom wall of the bench clamp operating disc (512);

the transmission mechanism (520) comprises a connecting rod (521) and a sliding block (522), wherein the sliding block (522) is connected with the third driving wire and is in sliding fit with a sliding groove in the shell (100), one end of the connecting rod (521) is rotatably connected with the driving protrusion (5111), and the other end of the connecting rod is rotatably connected with the sliding block (522).

10. An endoscope comprising a bending opening and closing control mechanism according to any one of claims 1 to 9, a snake bone (10) and a vice, the bending opening and closing control mechanism being respectively engaged with the snake bone (10) and the vice and being capable of driving the snake bone (10) to bend in the first direction or the second direction and driving the vice to open or close.