CN215534196U

CN215534196U - Endoscope operation line limiting and adjusting module and device

Info

Publication number: CN215534196U
Application number: CN202121137161.7U
Authority: CN
Inventors: 阮丹
Original assignee: Changzhou Lianying Zhirong Medical Technology Co ltd
Current assignee: Changzhou Lianying Zhirong Medical Technology Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-01-18
Anticipated expiration: 2031-05-26

Abstract

The utility model relates to medical optical instruments, in particular to an endoscope operating line limiting and adjusting module and a device. The implementation of this embodiment has solved among the prior art inconvenient and spacing regulation accurate technical problem inadequately of endoscope stop gear dismouting.

Description

Endoscope operation line limiting and adjusting module and device

Technical Field

The utility model relates to medical optical instruments, in particular to an endoscope operating line limiting and adjusting module and device.

Background

The endoscope is a detection instrument integrating traditional optics, ergonomics, precision machinery, modern electronics, mathematics and software into a whole. One has an image sensor, optical lens, light source illumination, mechanical device, etc. that can enter the stomach orally or through other natural orifices. Since a lesion which cannot be displayed by X-ray can be seen by an endoscope, it is very useful for a doctor.

In order to prevent mechanical failure due to improper operation, the maximum bending angle of the bending portion needs to be determined in advance, and then the maximum bending angle is controlled by designing a limit mechanism. Theoretical calculation shows that the traction amount of the steel wire rope corresponding to the bending of the angle of 1 degree is about 0.04mm, so that the influence degree of the accuracy degree of the traction amount of the steel wire rope on the bending angle is very important. Therefore, it is necessary to provide an endoscope operation wire limit adjusting module which can realize convenient assembly and disassembly and can realize accurate distance adjustment of the endoscope operation wire.

Disclosure of Invention

In order to solve the technical problems that an endoscope limiting mechanism is inconvenient to disassemble and assemble and limiting adjustment is not accurate enough in the prior art, the utility model provides an endoscope operating line limiting adjustment module and device, and the technical problems are solved.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

one aspect of the present invention provides an endoscope operation wire limit adjustment module, including: the positioning boss is fixedly connected to the side surface of the endoscope operation wire; the connecting seat is detachably connected to the endoscope base plate; the limiting block is movably connected to the connecting seat, the extending direction of the limiting block is parallel to the moving direction of the endoscope operating line at the adjacent position, one end of the extending direction of the limiting block abuts against the connecting seat, and meanwhile, the limiting block at least partially blocks the moving path of the positioning boss to limit; any number of standard shims configured between the connecting seat and the abutting end of the stopper to adjust the fixing position of the stopper.

Furthermore, the adjusting bolt and the locking nut are further included, the adjusting bolt penetrates through the connecting seat and the limiting block along the extending direction of the limiting block, after assembly, the nut of the adjusting bolt is abutted against the connecting seat, and one end, far away from the nut, of the adjusting bolt is matched with the locking nut to fix the limiting block and the standard gasket on the connecting seat.

Furthermore, a screw hole is formed in the position, through which the adjusting bolt penetrates, of the connecting seat, and the adjusting bolt is connected to the connecting seat through the screw hole.

Furthermore, screw threads are arranged at two ends of the rod body of the adjusting bolt, and the rotating directions of the screw threads at the two ends are opposite.

Further, a polished rod is arranged between threads at two ends of the adjusting bolt.

Further, the standard gasket is an open gasket.

Further, the connecting base is connected to the endoscope base plate through a screw.

The utility model also provides an endoscope operation wire limit adjusting device which comprises two endoscope operation wire limit adjusting modules, wherein the two endoscope operation wire limit adjusting modules are respectively arranged at the opposite positions of the movement direction of the endoscope operation wire.

Based on the technical scheme, the utility model can realize the following technical effects:

according to the endoscope operation wire limiting and adjusting module, the positioning boss is fixedly connected to the side face of the endoscope operation wire, when the endoscope operation wire moves forwards and backwards, the positioning boss is blocked and limited by the limiting block to adjust the maximum bending angle of the endoscope, specifically, the limiting block is fixed on the endoscope base plate through the detachable connecting seat, furthermore, one end of the limiting block in the extending direction abuts against the connecting seat, a proper number of standard gaskets are arranged between the abutting end of the limiting block and the connecting seat according to actual requirements to adjust the fixing position of the limiting block on the endoscope base plate, and the position where the positioning boss is limited is indirectly adjusted, so that the traction amount of the operation wire is adjusted, and the maximum bending angle of the endoscope is finally adjusted. In the utility model, the connecting seat is detachably arranged on the endoscope substrate, and the limiting block and the standard gasket are arranged on the connecting seat, therefore, the technical problem that the limiting mechanism is inconvenient to disassemble and assemble in the prior art is solved through the detachable connecting seat, meanwhile, the position adjustment of the limiting block in the utility model is realized by adjusting the thickness and the number of the standard gasket, the utility model is mainly embodied as the number, the precision of the standard gasket determines the precision of the traction amount of the operating line, and compared with the subjective movement without a reference object of the limiting block of the limiting mechanism in the prior art, the precision and the number of the standard gasket in the utility model can be better controlled, thereby solving the technical problem that the limiting mechanism is not accurate enough to adjust in the prior art.

Drawings

FIG. 1 is a schematic view of the overall structure of an endoscope operating wire limit adjusting device of the utility model;

FIG. 2 is an exploded view of the endoscope operating wire limit adjustment device of the present invention;

FIG. 3 is a schematic view of an endoscope wire limit adjustment module of the present invention;

FIG. 4 is a schematic view of a coupling socket of the endoscope operating wire limit adjustment module of the present invention;

FIG. 5 is a schematic view of an adjustment bolt of the endoscope wire limit adjustment module of the present invention;

FIG. 6 is a schematic view of a standard shim of the endoscope wire limit adjustment module of the present invention.

Wherein: 1-positioning a boss; 2-a connecting seat, 21-a limiting block, 22-a standard gasket, 23-an adjusting bolt and 24-a locking nut; 3-operating line; 4-a substrate; 5-chain.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the present invention, not all of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. Based on the utility model of the present invention, all other utility models obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of parts and steps, numerical expressions and numerical values set forth in these utility models do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary utility model may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

As shown in figures 1-3, the endoscope of the application makes the chain reciprocate by rotating the U/D hand wheel and the R/L hand wheel, one end of the operating wire is connected with the chain, and the other end of the operating wire is welded with the inner part of the snake bone of the bending part of the endoscope, so the movement of the chain indirectly drives the snake bone to bend. When the snake bone is bent in a certain direction, the operation wire for controlling the bending direction generates a corresponding displacement distance, namely, the traction amount of the operation wire, so that the control of the maximum angle of the bending part is actually determined by the traction amount of the operation wire. The limiting adjustment is essentially to control the maximum traction amount of the operating line by adjusting the position of the limiting block, so as to control the maximum bending angle of the endoscope.

As shown in fig. 1-6, the endoscope operation line limiting and adjusting module of this embodiment includes a positioning boss 1, a connecting seat 2, a limiting block 21 and any standard gasket 22, the positioning boss 1 is fixedly connected to a side surface of the endoscope operation line 3, the connecting seat 2 is detachably connected to the endoscope substrate 4, the limiting block 21 is movably connected to the connecting seat 2, an extending direction of the limiting block 21 is parallel to a moving direction of the endoscope operation line 3 adjacent to the extending direction of the limiting block 21, one end of the extending direction of the limiting block 21 abuts against the connecting seat 2, meanwhile, the limiting block 21 at least partially blocks on a moving path of the positioning boss 1 for limiting, and the standard gasket 22 is configured between the abutting ends of the connecting seat 2 and the limiting block 21 for adjusting a fixing position of the limiting block 21.

The spacing adjusting module of endoscope operation line of this embodiment, at side fixed connection location boss 1 of endoscope operation line 3, when endoscope operation line 3 is positive and negative motion, location boss 1 is blockked spacing maximum bending angle in order to adjust the endoscope by stopper 21, specifically, stopper 21 is fixed on endoscope base plate 4 through detachable connecting seat 2, furthermore, the one end of stopper 21 extending direction supports and leans on connecting seat 2, stopper 21 support and put into suitable quantity of standard gasket 22 with the fixed position of adjustment stopper 21 on endoscope base plate 4 according to actual demand between end and the connecting seat 2, location boss 1 has been adjusted indirectly by spacing position, thereby the amount of pulling of operation line 3 has been adjusted, and the maximum bending angle of endoscope has finally been adjusted. In this embodiment, connecting seat 2 is detachably installed on endoscope base plate 4, and stopper 21 and standard gasket 22 all set up on connecting seat 2, from this, this implementation has solved the inconvenient technical problem of stop gear dismouting in the current through detachable connecting seat 2, and simultaneously, the position adjustment of stopper 21 of this embodiment is realized through thickness and the quantity of adjustment standard gasket 22, mainly embody the quantity in this embodiment, the precision of operating line 3 tractive volume has been decided to the precision of standard gasket 22, compare in the prior art stop gear's of stop gear's subjective removal of no reference object, the precision and the quantity of standard gasket 22 in this embodiment can all obtain better control, thereby the not accurate technical problem of stop gear regulation in the prior art enough has been solved.

Specifically, two ends of the endoscope operation wire 3 are connected with the chain 5 through connecting pieces, and positioning bosses 1 are arranged on the side faces of the connecting pieces. The side and the bottom of the connecting seat 2 are punched, the connecting seat is detachably connected on a substrate 4 of the endoscope through screws so as to be convenient for disassembly and maintenance, one end of the connecting seat 2 is bent to form a backup plate, a screw hole is formed in the backup plate, an adjusting bolt 23 is connected on the connecting seat 2 through the screw hole, as shown in figure 5, threads are arranged at two ends of a rod body of the adjusting bolt 23, the rotating directions of the threads at the two ends are opposite, the middle part of the rod body is a polished rod, a limiting block 21 is sleeved on the polished rod, as shown in figure 3, the extending direction of the limiting block 21 is parallel to the moving direction of the endoscope operating line 3, one end of the extending direction of the limiting block 21 is abutted against the backup plate of the connecting seat 2, the part of the side surface of the limiting block 21, protruding out of the connecting seat 2, is used for blocking the positioning boss 1 so as to limit the connecting piece, thereby limiting the limit traction amount of the endoscope operating line 3, and finally limiting the maximum bending angle of the endoscope, the fixed position of stopper 21 is adjusted in order to insert standard gasket 22 between the end and the backup plate that support of stopper 21, and the fixed position change of stopper 21 means the limited position change of location boss 1, just also means the change of the limit pulling amount of endoscope operation line 3 to finally show the change of the maximum bending angle of endoscope, and the other end that the stopper 21 is kept away from and is supported the end sets up lock nut 24, and lock nut 24 screws up in the one end of keeping away from the nut of adjusting bolt 23, fixes stopper 21, standard gasket 22 on connecting seat 2. It can be seen that the opposite direction of the threads at the two ends of the bolt body effectively prevents the nut end of the adjusting bolt 23 from loosening and falling off the backup plate of the connecting seat 2 when the locking nut 24 is screwed down. It should be noted that, as shown in fig. 4, the limiting block 21, the adjusting bolt 23, the standard washer 22 and the lock nut 24 in this example are preferably two sets, and are connected to the connecting socket 2 side by side to ensure the firmness.

As shown in fig. 6, to facilitate adjustment of the standard gasket 22, the standard gasket 22 is preferably an open gasket. Thus, when the adjustment is carried out, the locking nut 24 and the limiting block 21 do not need to be taken down from the adjusting bolt 23, and only the standard gasket 22 needs to be put in from the side. Before the endoscope is adjusted, standard gaskets 22 with equal-difference series thickness can be prepared in advance, the smaller the tolerance is, the higher the precision is, if the tolerance is 0.01mm, namely, the thickness difference between every two standard gaskets 22 is 0.01mm, and the precision of the traction amount of the steel wire rope is 0.01 mm. Therefore, the endoscope operation wire limit adjusting module of the embodiment can accurately adjust the traction amount of the operation wire 3 by changing the precision of the standard gasket 22, and avoid the occurrence of the condition that the deviation of the maximum bending angle of the endoscope is overlarge due to the precision problem.

As shown in fig. 1-2, another aspect of the present example also provides an endoscope operation wire limit adjusting device, which comprises two endoscope operation wire limit adjusting modules as described above, wherein the two endoscope operation wire limit adjusting modules are respectively arranged at the opposite positions of the moving direction of the endoscope operation wire 3, and in the present example, the two endoscope operation wire limit adjusting modules are symmetrically distributed on the base plate 4 of the endoscope.

It should be understood that the above description of the specific embodiments is provided for the purpose of illustration and not for the purpose of limitation. Obvious variations or modifications which are within the spirit of the utility model are possible within the scope of the utility model.

Claims

1. An endoscope operation line limiting and adjusting module is characterized by comprising:

the positioning boss (1), the positioning boss (1) is fixedly connected to the side surface of the endoscope operation wire (3);

the connecting base (2), the said connecting base (2) is connected to endoscope base plate (4) removably;

the limiting block (21) is movably connected to the connecting seat (2), the extending direction of the limiting block (21) is parallel to the moving direction of the endoscope operating line (3) at the adjacent position, one end of the extending direction of the limiting block (21) is abutted against the connecting seat (2), and meanwhile, the limiting block (21) at least partially blocks on the moving path of the positioning boss (1) to limit;

any number of standard shims (22), the standard shims (22) being disposed between abutting ends of the connecting seat (2) and the stopper (21) to adjust a fixing position of the stopper (21).

2. The endoscope operation line limiting and adjusting module according to claim 1, further comprising an adjusting bolt (23) and a lock nut (24), wherein the adjusting bolt (23) penetrates through the connecting seat (2) and the limiting block (21) along the extending direction of the limiting block (21), after assembly, a nut of the adjusting bolt (23) abuts against the connecting seat (2), and one end, far away from the nut, of the adjusting bolt (23) is matched with the lock nut (24) to fix the limiting block (21) and a standard gasket (22) on the connecting seat (2).

3. The endoscope operation wire limit adjustment module according to claim 2, characterized in that a screw hole is formed at a position through which the adjustment bolt (23) passes through the connection block (2), and the adjustment bolt (23) is connected to the connection block (2) through the screw hole.

4. The endoscope operation line limit adjusting module according to claim 3, wherein threads are arranged at two ends of the rod body of the adjusting bolt (23), and the rotation directions of the threads at the two ends are opposite.

5. The endoscope operating line limit adjustment module of claim 4, characterized in that a polish rod is arranged between the threads at the two ends of the adjustment bolt (23).

6. The endoscope operating wire limit adjustment module of claim 1, wherein the standard gasket (22) is an open gasket.

7. The endoscope operating wire limit adjustment module of claim 1, characterized in that the connection socket (2) is connected to the endoscope base plate (4) by screws.

8. An endoscope operation line limiting and adjusting device is characterized by comprising:

two endoscope operation wire limit adjustment modules according to any of the claims 1-7, which are arranged at opposite directions of movement of the endoscope operation wire (3).