CN217938169U - Endoscope and operating handle thereof - Google Patents

Abstract

The application discloses endoscope and operating handle thereof, operating handle includes the casing, dials the piece, traction wheel and elastic component, wherein: the traction wheel is rotatably arranged in the shell, and the poking piece is connected with the traction wheel; the two ends of the elastic piece are respectively connected with the traction wheel and the shell, the traction wheel is movably arranged along the telescopic direction of the elastic piece, the elastic piece is configured to apply pretightening force to the traction wheel so that the traction wheel can move to be abutted against the shell to be locked, and under the condition that the traction wheel is pressed through the poking piece, the pretightening force is counteracted to enable the traction wheel to move to be separated from the shell. The scheme can simplify the operation of the endoscope and optimize the control precision of the front end module.

Description

Endoscope and operating handle thereof

Technical Field

The application relates to the technical field of medical equipment, in particular to an endoscope and an operating handle thereof.

Background

With the continuous progress of medical technology, endoscopes are applied more and more widely in modern medicine. The endoscope can enter the human body through various cavities of a patient and carry out diagnosis and treatment means such as focus examination, minimally invasive surgery and the like.

In the correlation technique, the endoscope includes operating handle and insertion portion, and in actual operation, through stirring the driving lever on the operating handle and drive the traction wheel and rotate to carry out the gesture to the bending section of insertion portion and adjust, thereby adjust the orientation of front end module, realize functions such as fixed point observation. However, after the operator adjusts the orientation of the front module to the target position through the shift lever, the operator needs to manually maintain the driving state of the shift lever, otherwise the insertion portion may be deformed again, which may make the posture of the bent section difficult to maintain. Therefore, the endoscope in the related art has the problems of complex operation and poor control precision of the front end module.

SUMMERY OF THE UTILITY MODEL

The application discloses an endoscope and operating handle thereof, can simplify the operation of endoscope, and optimize the control accuracy of its front end module.

In order to solve the above problems, the following technical solutions are adopted in the present application:

in a first aspect, the present application provides an operating handle of an endoscope, comprising a housing, a toggle member, a traction wheel, and an elastic member, wherein:

the traction wheel is rotatably arranged in the shell, and the poking piece is connected with the traction wheel;

the two ends of the elastic piece are respectively connected with the traction wheel and the shell, the traction wheel is movably arranged along the telescopic direction of the elastic piece, the elastic piece is configured to apply pretightening force to the traction wheel so that the traction wheel can move to be abutted against the shell to be locked, and under the condition that the traction wheel is pressed through the poking piece, the pretightening force is counteracted to enable the traction wheel to move to be separated from the shell.

In a second aspect, the present application provides an endoscope comprising the operating handle of the first aspect of the present application and an insertion portion, the insertion portion being connected to the operating handle.

In the endoscope and the operating handle thereof provided by the application, the elastic piece is arranged between the shell and the traction wheel, and the elastic piece is configured to apply pretightening force to the traction wheel, so that the traction wheel is abutted against the shell to realize interlocking of the traction wheel and the shell, and the operating handle has a self-locking function. In this case, after the operator adjusts the orientation of the front end module to the target position by pulling the traction wheel, the posture of the curved section in the insertion portion can be reliably maintained based on the self-locking function of the operation handle even if the operator releases his hand. Meanwhile, when the orientation of the front-end module needs to be adjusted, the pulling piece is pressed, so that the traction wheel can be separated from the shell to realize unlocking.

Compared with the prior art, the endoscope and the operating handle thereof can keep the posture of the bending section of the insertion part without manually maintaining the driving state of the toggle piece when in use so as to ensure the stable orientation of the front end module, thereby obviously simplifying the operation of the endoscope and optimizing the control precision of the front end module.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

In the drawings:

FIG. 1 is a schematic structural diagram of an endoscope disclosed in an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of a housing of a hidden portion of an endoscope as disclosed in an embodiment of the present application;

FIG. 3 is an exploded view of a portion of an endoscope according to an embodiment of the present disclosure;

fig. 4 is a schematic view illustrating a fitting relationship between a first abutting portion and a second abutting portion according to an embodiment of the present disclosure;

FIG. 5 is an exploded view of the endoscope of FIG. 2;

fig. 6 is a schematic view of a rotation range of a traction wheel disclosed in an embodiment of the present application.

Description of the reference numerals:

100-an operating handle,

110-shell, 111-inner cavity, 112-avoiding opening, 113-guide seat, 113 a-guide space, 113 b-guide arm, 113 c-sliding groove, 114-first contact part, 114 a-first arc contact surface, 115-arc sub-shell part,

120-toggle piece, 121-arc baffle,

130-a traction wheel, 131-a wheel body, 132-a rotating shaft, 133-a second abutting part, 133 a-a second arc abutting surface,

140-an elastic member,

150-rotating support member, 151-sliding portion,

200-insertion part, 210-bending section,

R-hauling rope.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Technical solutions disclosed in the embodiments of the present application are described in detail below with reference to the accompanying drawings.

In order to solve the technical problems of complex operation and poor control precision of a front end module of an endoscope in the related art, the embodiment of the application provides an operating handle of the endoscope.

As shown in fig. 1 to 6, the disclosed operating handle 100 of the embodiment of the present application includes a housing 110, a toggle member 120, a traction wheel 130, and an elastic member 140, wherein:

the housing 110 is a basic component of the operating handle 100, and provides a mounting base for other components such as the traction wheel 130 and the elastic element 140, and meanwhile, the components such as the traction wheel 130 and the elastic element 140 are all arranged in the inner cavity 111 of the housing 110, and the housing 110 can play a certain protection function.

Referring to fig. 1 and fig. 2, the traction wheel 130 is rotatably disposed in the housing 110, the toggle member 120 is connected to the traction wheel 130, and the traction wheel 130 can be driven to rotate by manually toggling the toggle member 120. It should be understood that the endoscope includes the insertion part 200, the front end of the insertion part 200 has a bending section 210, and the traction wheel 130 is connected to the bending section 210 through the traction rope R, in this structural arrangement, when the traction wheel 130 rotates, the bending section 210 can be pulled to bend towards the corresponding side by tensioning the traction rope R, so as to adjust the orientation of the front end module of the endoscope. Therefore, the operator can finally adjust the orientation of the front module by toggling the toggle member 120 through the above transmission relationship.

Alternatively, the number of the pulling string R may be provided in plural, so that bending of the bending section 210 in plural directions can be achieved to improve the applicability of the endoscope. For example, as shown in fig. 2, the number of the pulling ropes R is two, but may be four or another number. In some embodiments, when the pulling rope R has more than two pulling members 120, a plurality of pulling members may be correspondingly disposed. The toggle element 120 may be a toggle lever, a handle, a button, or the like. The front end module generally includes a camera, a light source, and the like.

In the related art, since the insertion portion of the endoscope needs to enter the body cavity, the insertion portion actually belongs to a flexible structure, which causes the bending section to recover from deformation based on the self resilience characteristic without being pulled by the traction rope, so that the orientation of the front end module of the endoscope is bound to change, and the fixed-point observation and other functions cannot be realized. In actual operation, if need ensure that the endoscope observes at a fixed point, operating personnel just need maintain the stability of driving lever to the driving lever application of force to prevent that the traction wheel from rotating to ensure that the haulage rope keeps reliable tractive effect to crooked section all the time, so just can realize observing at a fixed point. However, the manual control of the shift lever is complicated in operation, and causes fatigue of an operator, and the manual operation always has a problem of poor control accuracy.

In view of the above-described problems, the operation handle 100 of the endoscope according to the embodiment of the present application is provided with the elastic member 140.

In the embodiment of the present application, two ends of the elastic member 140 are respectively connected to the traction wheel 130 and the housing 110, the traction wheel 130 is movably disposed along a telescopic direction of the elastic member 140, the elastic member 140 is configured to apply a pre-tightening force to the traction wheel 130, so that the traction wheel 130 moves to abut against the housing 110 and is locked, and in a case where the traction wheel 130 is pressed by the toggle member 120, the pre-tightening force is counteracted to move the traction wheel 130 to separate from the housing 110.

For illustration, the elastic member 140 of the present embodiment may be fixedly connected to the traction wheel 130 (or the housing 110) or may abut against the traction wheel. Based on the assembly characteristics of the elastic member 140, the elastic member 140 can apply a driving force to the traction wheel 130; when the elastic member 140 applies a driving force to the traction wheel 130 and the traction wheel 130 abuts against the housing 110, a frictional resistance exists between the traction wheel 130 and the housing 110, and the frictional resistance can be ensured by the prearrangement to prevent the relative sliding between the traction wheel 130 and the housing 110, so that the traction wheel 130 is locked, and thus the operation handle 100 of the embodiment of the present application has a self-locking function. The driving force applied by the elastic element 140 to the traction wheel 130 is a pre-tightening force.

Specifically, the elastic element 140 can apply a pushing force as a pre-tightening force to the traction wheel 130, and the elastic element 140 needs to be arranged to push the traction wheel 130 to abut against the housing 110 in a compressed state; the elastic member 140 can apply a pulling force as a pre-tightening force to the traction wheel 130, and it is necessary to arrange the elastic member 140 to pull the traction wheel 130 against the housing 110 in a stretched state.

Of course, in the embodiment where the elastic member 140 applies a tensile force to the traction wheel 130, the elastic member 140 is configured to be fixedly connected to the traction wheel 130 and the housing 110 at two ends thereof. Under the driving force, the elastic member 140 can drive the traction wheel 130 to move or make the traction wheel 130 have a tendency to move.

It can be seen that, with this configuration, after the operator adjusts the orientation of the front end module to the target position by pulling the traction wheel 130, the posture of the curved section 210 of the insertion portion 200 can be reliably maintained even if the operator releases his hand based on the self-locking function of the operating handle 100.

When the orientation of the front module needs to be adjusted, an operator can press the toggle piece 120 until the pressing force is greater than the pretightening force applied by the elastic piece 140, so that the traction wheel 130 can be driven to move away from the contact area of the shell 110 to realize separation, and then, no mutual frictional resistance exists between the traction wheel 130 and the shell 110, and at the moment, the traction wheel 130 is released to realize unlocking, so that the traction wheel 130 can be smoothly driven to rotate by toggling the toggle piece 120, and the orientation of the front module can be adjusted by adjusting the posture of the bending section 210.

Compared with the related art, the operation handle 100 of the embodiment of the present application can maintain the posture of the bending section 210 of the insertion portion 200 without manually maintaining the driving state of the toggle piece 120 when in use, so as to ensure a stable orientation of the front end module, thereby obviously simplifying the operation of the endoscope and optimizing the control accuracy of the front end module.

In the embodiment of the present application, there are various rotating matching relationships between the traction wheel 130 and the housing 110, for example, a matching hole is provided on an end surface of the traction wheel 130, a rotating shaft is provided on an inner wall of the housing 110, and the traction wheel 130 is rotatably matched with the rotating shaft on the housing 110 through the matching hole.

In another embodiment, as shown in fig. 2, the traction wheel 130 may include a wheel body 131 and a rotating shaft 132 disposed on at least one side of the wheel body 131, and the traction wheel 130 is rotatably coupled to the housing 110 through the rotating shaft 132. The rotating shaft 132 of the embodiment of the present application can be disposed on a single side end surface of the traction wheel 130, or the rotating shafts 132 are disposed on two side end surfaces of the traction wheel 130, so that the rotational stability of the traction wheel 130 can be improved.

Further, as shown in fig. 3, two ends of the elastic element 140 are respectively connected to the rotating shaft 132 and the housing 110, and in this structural configuration, the elastic element 140 exerts a pre-load force on the rotating shaft 132 to pre-load the traction wheel 130 as a whole. Of course, the embodiment of the present application does not limit the fitting relationship of the elastic member 140, and it may be configured to apply a pre-load to the wheel body 131 for connecting with the wheel body 131.

In addition, the operating handle 100 of the embodiment of the present application may be further provided with an additional elastic member to reinforce the pre-tightening action on the traction wheel 130. For example, when the elastic member 140 applies a pre-tightening force to the rotating shaft 132, an additional elastic member may be configured to apply a pre-tightening force to the wheel body 131; of course, these elastic members may have the same or different force application characteristics, for example, the elastic member 140 applying force to the rotation shaft 132 applies pushing force, and the elastic member applying force to the wheel body 131 applies pulling force.

In order to facilitate the rotation of the rotating shaft 132, as shown in fig. 2 and 3, the operating handle 100 may further include a rotating support 150, the rotating support 150 is disposed between the elastic member 140 and the rotating shaft 132, the rotating support 150 is rotatably engaged with the rotating shaft 132, and two ends of the elastic member 140 are respectively connected to the rotating support 150 and the housing 110.

Under the structural layout, the elastic member 140 is indirectly connected to the rotating shaft 132 through the rotating support member 150, and the rotating support member 150 can ensure that the rotating shaft 132 can more smoothly rotate; the elastic member 140 applies a preload to the traction wheel 130 by applying the preload to the rotational support 150. The rotating support 150 may be a bearing (as shown in fig. 2 and 3), a bushing, a bearing, or the like.

In an alternative, as shown in fig. 2 and 3, the housing 110 may include a guide seat 113 disposed in the inner cavity 111 thereof, the guide seat 113 is provided with a guide space 113a, the guide space 113a extends along the extension and contraction direction of the elastic member 140, and the rotation shaft 132 and the rotation support 150 are movably disposed in the guide space 113 a.

It should be understood that the extending direction of the guiding space 113a determines the moving direction of the rotating shaft 132 and thus the traction wheel 130, and in this arrangement, the guiding space 113a extends along the extending and retracting direction of the elastic element 140, so as to ensure that the moving direction of the traction wheel 130 matches the extending and retracting direction of the elastic element 140, thereby better utilizing the pre-tightening force of the elastic element 140, and simultaneously avoiding the unexpected frictional resistance caused by the traction wheel 130 moving along the direction deviating from the pre-tightening force. In addition, the rotation support 150 is movable in the guide space 113a so as to always support the rotation shaft 132.

In the embodiment of the present application, the guide space 113a may be of various types, for example, the guide space 113a may be a guide groove formed on the guide base 113.

In another embodiment, as shown in fig. 2 and 3, the guide base 113 includes two guide arms 113b disposed in parallel, a guide space 113a is defined between the two guide arms 113b, and the two guide arms 113b can perform a relative constraint function to ensure that the rotating shaft 132 and the rotating support 150 can slide smoothly in the guide space 113 a.

Further, both the guide arms 113b may be provided with sliding grooves 113c communicating with the guide spaces 113a, the sliding grooves 113c extend along the extension and contraction direction of the elastic member 140, the rotary support member 150 includes sliding portions 151 provided at opposite ends thereof, and the sliding portions 151 are in one-to-one sliding fit with the sliding grooves 113c. Specifically, the sliding grooves 113c guide the rotation support 150, and guide the rotation support 150 to slide along the extension and contraction direction of the elastic member 140 by configuring the extension and contraction arrangement of the rotation support 150 along the extension and contraction direction of the elastic member 140, so as to ensure that the rotation support 150 smoothly supports the rotation shaft 132. Both ends of the rotary support 150 are provided with sliding portions 151, which can improve the sliding reliability and stability of the rotary support 150.

Of course, the specific matching relationship between the rotating support 150 and the guide seat 113 is not limited in the embodiments of the present application, and in another embodiment, a guide rail may be disposed on the guide arm 113b, and a sliding slot 113c slidably matching with the guide rail may be disposed on the rotating support 150.

To further improve the compactness, as shown in fig. 3, the elastic member 140 may be disposed in the sliding groove 113c, and both ends of the elastic member 140 are connected to the sliding portion 151 and the guide arm 113b, respectively.

It should be understood that this arrangement allows the elastic member 140 to reuse the space in the sliding slot 113c, which obviously improves the space utilization and the compactness of the interior of the operating handle 100 compared to the case that the elastic member 140 is disposed in the inner cavity 111. With this arrangement, the elastic member 140 applies a pre-load force to the sliding portion 151, and indirectly applies a pre-load force to the entire traction wheel 130 through the rotation support 150. Meanwhile, because the elastic element 140 is arranged in the sliding groove 113c, the inner wall of the guide arm 113b surrounds the elastic element 140 to play a role in restraining and guiding the elastic element 140, which can prevent the elastic element 140 from deflecting and twisting, and the like, thereby ensuring that the elastic element 140 applies pretightening force along the preset direction.

In addition, since the two sliding portions 151 are disposed at opposite ends of the rotating support 150, and the elastic element 140 transmits a pre-tightening force through the two sliding portions 151, the pre-tightening effect on the rotating support 150, the rotating shaft 132, and even the traction wheel 130 can be more balanced, so as to prevent the traction wheel 130 from being biased by a force, and ensure that the traction wheel 130 moves along a predetermined direction and pre-tightening is achieved at a predetermined position.

In the present embodiment, the type of the elastic member 140 can be various, and the present embodiment is not limited thereto, for example, a spring (as shown in fig. 3), an elastic foam, a rubber, and the like.

In an embodiment where the traction wheel 130 includes the rotating shaft 132, as shown in fig. 4 and 5, the housing 110 may include a first abutting portion 114 disposed on an inner wall thereof, the first abutting portion 114 having a first arc-shaped abutting surface 114a; the traction wheel 130 further includes a second abutting portion 133 disposed on the circumferential direction of the rotating shaft 132, the second abutting portion 133 has a second arc abutting surface 133a, and the traction wheel 130 is locked to the housing 110 by abutting the second arc abutting surface 133a with the first arc abutting surface 114 a.

In this configuration, the first abutting portion 114 belongs to a portion of the housing 110, the second abutting portion 133 belongs to a portion of the traction wheel 130, and the first arc-shaped abutting surface 114a and the second arc-shaped abutting surface 133a are abutting regions of the housing 110 and the traction wheel 130, respectively. In fact, the first abutting portion 114 and the second abutting portion 133 are respectively the components for realizing the abutting interlocking of the housing 110 and the traction wheel 130, and compared with the embodiment directly abutting against the housing 110 through the wheel body 131 or the rotating shaft 132, the first arc-shaped abutting surface 114a and the second arc-shaped abutting surface 133a of the embodiment can significantly increase the contact area of the housing 110 and the traction wheel 130 abutting against each other, so as to improve the reliability and stability of the interlocking of the two.

Meanwhile, based on the arc-shaped characteristics of the first arc-shaped abutting surface 114a and the second arc-shaped abutting surface 133a, the fit relationship between the first abutting portion 114 and the second abutting portion 133 can adapt to the rotation action of the traction wheel 130, so that the first abutting portion 114 and the second abutting portion 133 are prevented from interfering when the traction wheel 130 rotates.

Further, the first arc abutting surface 114a and the second arc abutting surface 133a may be arc surfaces. Alternatively, as shown in fig. 5, the second abutting portion 133 may be connected to the rotating shaft 132, or the second abutting portion 133 may be connected to an end surface of the wheel body 131.

In the embodiment of the present application, the specific structural layout of the first abutting portion 114 and the second abutting portion 133 is not limited, and they may be provided only on one side of the traction wheel 130, or may be provided on both sides of the traction wheel 130. Meanwhile, the first abutting portion 114 and the second abutting portion 133 are not disposed in one-to-one correspondence with the rotating shaft 132, and the first abutting portion 114 and the second abutting portion 133 may be disposed on the side of the traction wheel 130 where the rotating shaft 132 is not disposed.

Alternatively, as shown in fig. 5, the first abutting portion 114 and the second abutting portion 133 are both arc-shaped sheet-shaped structural members, and of course, the specific types of the first abutting portion 114 and the second abutting portion 133 are not limited in this embodiment of the application, as long as the arc-shaped abutting surfaces that can be matched with each other are correspondingly provided on the two abutting portions, for example, the two abutting portions may be block-shaped structural members.

Next, various self-locking schemes for the traction wheel 130 of the operating handle of the embodiment of the present application will be explained in conjunction with the foregoing embodiments.

Referring to fig. 3 and 4, the elastic member 140 is disposed on a side of the rotating shaft 132 away from the first abutting portion 114, and the elastic member 140 is pre-disposed in a compressed state to apply a pushing force to the rotating shaft 132, and the pushing force is transmitted to the second abutting portion 133 through the whole traction wheel 130, so that the second abutting portion 133 abuts against the first abutting portion 114 and is locked. When unlocking is required, the toggle piece 120 is pressed to further compress the elastic piece 140, so that the second abutting part 133 can be separated from the first abutting part 114, and the traction wheel 130 is unlocked.

In another embodiment, the elastic element 140 may be disposed on one side of the rotating shaft 132 close to the first abutting portion 114, one end of the elastic element 140 may be connected to the second abutting portion 133 (other portions of the traction wheel 130 may be sufficient as long as the traction wheel 130 can be pulled), and the other end of the elastic element 140 may be connected to the inner wall of the housing 110, and it is preset that the elastic element 140 is in a stretching state to apply a pulling force to the second abutting portion 133, and the pulling force pulls the whole traction wheel 130, in this case, the second abutting portion 133 abuts against the first abutting portion 114 to be locked. When unlocking is required, the toggle piece 120 is pressed to further stretch the elastic piece 140, so that the second contact portion 133 can be separated from the first contact portion 114, and the traction wheel 130 can be unlocked.

In an alternative scheme, as shown in fig. 2 and fig. 6, the housing 110 may further include a limiting member disposed inside the housing, the limiting member is located on a rotation path of the second abutting portion 133, and during a rotation process of the traction wheel 130, two ends of the second abutting portion 133 may respectively be in limiting fit with the limiting member, so that the traction wheel 130 rotates within a predetermined angle range.

It should be understood that the second abutting portion 133 is a part of the traction wheel 130, and the limiting member can limit the entire traction wheel 130 by limiting the second abutting portion 133, so as to limit the rotation range of the traction wheel 130. The rotation stroke range of the traction wheel 130 is not limited in the embodiment of the present application, and the rotation stroke range can be preset to be 180 °, and further, the rotation stroke range can also be preferably 150 °, 120 °, 90 ° and the like.

In the embodiment of the present application, the type of the limiting element may be various, for example, the limiting element may be an independent limiting structure disposed in the inner cavity 111, and two opposite end surfaces of the limiting element are respectively in limiting fit with two ends of the second abutting portion 133; alternatively, there are two limiting members, and the two limiting members are respectively in limiting fit with two ends of the second abutting portion 133.

As shown in fig. 6, in the embodiment that the housing 110 includes the guide seat 113 disposed in the inner cavity 111, two ends of the second abutting portion 133 may be respectively engaged with two guide arms 113b of the guide seat 113 in a limiting manner, in this case, the guide seat 113 is a limiting member, and the guide seat 113 is functionally reused, so as to improve the compactness of the interior of the operating handle 100.

As shown in fig. 6, the rotation stroke of the traction wheel 130 on the left side of the toggle member 120 is α, the rotation stroke of the traction wheel 130 on the right side of the toggle member 120 is β, and the sum of α and β is the rotation stroke of the traction wheel 130. In fig. 6, when the left end of the second abutting portion 133 is in limit engagement with the left guide arm 113b, α is 0 °, at this time, the traction wheel 130 rotates counterclockwise to the limit position; when the right end of the second abutting portion 133 is in limit engagement with the right guide arm 113b, β is 0 °, and at this time, the traction wheel 130 rotates clockwise to the limit position.

In the alternative, a damping surface may be provided at least in part in the area where the traction sheave 130 and the housing 110 abut each other. The damping surface can increase the friction coefficient, so as to increase the friction coefficient of the mutual abutting area of the traction wheel 130 and the shell 110, thereby being beneficial to realizing the self-locking function of the traction wheel 130.

In a specific embodiment, as shown in fig. 4, the second arc-shaped abutment surface 133a of the second abutment portion 133 may be provided with a damping surface.

Wherein the damping surface may be formed by a roughening process, for example, as shown in fig. 4, the second arc-shaped abutting surface 133a is configured with a plurality of convex points to form the damping surface; alternatively, the damping surface may be formed by providing a damping material.

In an alternative scheme, as shown in fig. 1, fig. 2 and fig. 5, the housing 110 may include an arc-shaped sub-housing portion 115, the traction wheel 130 is partially accommodated in the arc-shaped sub-housing portion 115, the arc-shaped sub-housing portion 115 is provided with an avoidance port 112 for passing through the toggle member 120, the toggle member 120 is provided with an arc-shaped baffle 121, and the arc-shaped baffle 121 is used for blocking the avoidance port 112.

With this arrangement, the arc-shaped housing portion 115 can provide a space for accommodating the traction wheel 130, so that the housing 110 and the traction wheel 130 can be assembled together more appropriately, thereby improving the compactness of the interior of the operating handle 100. The arc-shaped baffle 121 can be adapted to the shape and characteristics of the arc-shaped sub-shell portion 115, when the toggle member 120 is toggled, the arc-shaped baffle 121 can rotate relative to the arc-shaped sub-shell portion 115 without interference, and the arc-shaped baffle 121 can better block the avoiding opening 112, so that the shell 110 is ensured to have better sealing performance all the time.

Further, the elastic member 140 is configured to apply a pre-load force to the traction wheel 130 toward the avoidance port 112. It should be understood that, the toggle element 120 is disposed in the avoiding opening 112, such a structural layout can make the force application direction of the elastic element 140 substantially the same as the pressing direction of the toggle element 120, so that when the toggle element 120 is pressed, the pressing force can more easily counteract the pre-tightening force applied to the traction wheel 130 by the elastic element 140, thereby facilitating easier unlocking of the traction wheel 130 and reducing the operation difficulty.

Based on the aforementioned operation handle 100, as shown in fig. 1, an endoscope is further provided in the embodiment of the present application, and includes an insertion portion 200 and the aforementioned operation handle 100 according to any of the aforementioned aspects, so that the endoscope has the beneficial effects of any of the aforementioned aspects, and details are not repeated here. Wherein the insertion portion 200 is connected to the operation handle 100.

In the embodiments of the present application, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not inconsistent, and further description is omitted here in view of brevity of the text.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. An operating handle of an endoscope, comprising a housing, a toggle member, a traction wheel and an elastic member, wherein:

the traction wheel is rotatably arranged in the shell, and the poking piece is connected with the traction wheel;

the two ends of the elastic piece are respectively connected with the traction wheel and the shell, the traction wheel can be movably arranged along the telescopic direction of the elastic piece, the elastic piece is configured to apply pretightening force to the traction wheel so that the traction wheel can move to be abutted against the shell to be locked, and under the condition that the traction wheel is pressed by the poking piece, the pretightening force is counteracted to enable the traction wheel to move to be separated from the shell.

2. The manipulating handle for an endoscope according to claim 1, wherein the pulling wheel includes a wheel body and a rotating shaft provided on at least one side end surface of the wheel body, the pulling wheel is rotatably engaged with the housing through the rotating shaft, and both ends of the elastic member are connected to the rotating shaft and the housing, respectively.

3. The operating handle for an endoscope according to claim 2, wherein said operating handle further comprises a rotation support member, said rotation support member is disposed between said elastic member and said rotating shaft, said rotation support member is rotatably engaged with said rotating shaft, and both ends of said elastic member are connected to said rotation support member and said housing, respectively.

4. The operating handle for an endoscope according to claim 3, wherein said housing includes a guide holder provided in an inner cavity thereof, said guide holder being provided with a guide space extending in a telescopic direction of said elastic member, said rotary shaft and said rotary support member being movably provided in said guide space.

5. The operating handle for an endoscope according to claim 4, wherein said guide holder includes two guide arms disposed in parallel, said guide space being defined between said two guide arms, each of said two guide arms being provided with a slide groove communicating with said guide space, said slide grooves extending in a telescopic direction of said elastic member, said rotary support member including slide portions provided at opposite ends thereof, said slide portions being slidably fitted to said slide grooves in a one-to-one correspondence.

6. The operating handle for an endoscope according to claim 5, wherein said elastic member is provided in said slide groove, and both ends of said elastic member are connected to said slide portion and said guide arm, respectively.

7. The operating handle for an endoscope according to claim 2, wherein said housing includes a first abutting portion provided on an inner wall thereof, said first abutting portion having a first arc-shaped abutting surface; the traction wheel further comprises a second abutting portion arranged on the circumferential direction of the rotating shaft, the second abutting portion is provided with a second arc abutting surface, and the traction wheel is locked on the shell through the abutting of the second arc abutting surface and the first arc abutting surface.

8. The operating handle for an endoscope according to claim 1, characterized in that a damping surface is provided at least partially in a region where said traction wheel and said housing abut against each other.

9. The operating handle for an endoscope according to any one of claims 1 to 8, wherein the housing comprises an arc-shaped sub-housing part, the traction wheel part is accommodated in the arc-shaped sub-housing part, the arc-shaped sub-housing part is provided with an avoidance port for penetrating the toggle member, the toggle member is provided with an arc-shaped baffle, and the arc-shaped baffle is used for blocking the avoidance port;

the elastic member is configured to apply a preload force to the traction wheel toward the avoidance port.

10. An endoscope, characterized by comprising an insertion portion and an operation handle of the endoscope according to any one of claims 1 to 9, the insertion portion being connected to the operation handle.

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