CN221060623U - Endoscope and operating element thereof - Google Patents

Abstract

The application discloses an endoscope and an operating piece thereof, and belongs to the technical field of minimally invasive medical instruments. The endoscope includes: the device comprises a head end piece, an inserting piece, an operating piece and a connecting piece, wherein one end of the inserting piece is connected with the head end piece, the other end of the inserting piece is connected with the operating piece, the operating piece is connected with the connecting piece, and the connecting piece is used for connecting a host; wherein, the operating piece includes: the handle shell is fixedly connected with the luer connector; the luer connector is positioned on the front side of the handle shell, and the axis of the luer connector and the axis of the insert form a first included angle which is smaller than 90 degrees. The application has the main purpose of improving the holding hand feeling of the handle shell of the endoscope by adjusting the gravity center position of the operating piece and improving the position relation of the luer connector relative to the handle shell.

Description

Endoscope and operating element thereof

Technical Field

The application relates to the technical field of minimally invasive medical instruments, in particular to an endoscope and an operating piece thereof.

Background

The endoscope stretches the front end of the endoscope into the part to be detected through establishing a channel with the part to be detected or operated on the human body, such as a tiny wound established on the skin, an imaging module is arranged at the front end of the endoscope, and the imaging module is used for collecting images or video information of the part to be detected. The rear end of the endoscope is generally connected with an image processing device and an imaging device, and the image processing device and the imaging device are used for processing and displaying information acquired by the imaging module, and providing guidance for a doctor to operate by using the endoscope.

When a doctor performs an operation using an endoscope, the doctor generally needs to hold a housing portion of the endoscope, which corresponds to a handle, and the interior of the housing of the endoscope is provided with components such as a circuit board and a cable. The comfort of the handle held by the doctor has very important influence on the smoothness of operation and the quality of operation by the doctor using the endoscope. However, technical improvements to endoscopes in the prior art have focused on improving the functionality of endoscopes.

For example, in the related art, chinese patent literature: CN116269183a provides a portable endoscope, in which elements such as a driving part, an eyepiece part and an image processing module are concentrated in a housing, and related elements are concentrated on a front side of a handle housing, so that a center of the handle housing is located on the front side of the handle housing, and because the center is not located at the center of the housing, when a doctor uses the handle to operate, a rear part of the handle needs to be held to offset an influence caused by the center of the housing being located on the front side. While more elements enrich the functionality of the endoscope, the comfort of the housing for the physician's hand is sacrificed when the endoscope is in use.

In order to facilitate operations such as sampling or liquid injection by using an endoscope, a luer connector is usually connected to a housing of the endoscope, and in order to avoid comfort of the luer connector to a doctor holding the housing, the position of the luer connector is generally arranged on the front side of the housing.

For example, in the related art, chinese patent literature: CN116211232a provides an endoscope, the luer connector of which is disposed at the front end of the housing and is located at the upper side of the housing. Medical instruments such as a liquid injector extend into the channel space of the endoscope through the luer connector to inject liquid. However, since the luer is perpendicular to the housing, the liquid pressure generated during filling is directed to both sides, i.e., one side is directed to the channel space and the other side is directed to the opposite direction of the channel space. And because the vertical structure exists, the liquid injection hose is easy to fold at the vertical position, and the liquid injection effect is affected.

The opening of the luer connector faces the rear side of the shell, the technical problem that the injection liquid pressure is towards two sides due to the fact that the luer connector is vertical can be solved, the technical problem that the injection liquid hose is easy to fold at the vertical position can be avoided, but the opening of the luer connector faces the rear side of the shell, the holding space for holding by a doctor at the rear side of the shell is occupied, and the comfort of holding the shell by the doctor is reduced.

The open side towards the casing front side of luer, will practice thrift a large amount of spaces for doctor's handheld casing, pressure orientation both sides' problem when also can solving the notes liquid, but this kind of structure, if place into annotate liquid cartilage and annotate the liquid, that probably leads to annotating the technical problem that the liquid pipe is buckled at luer and apparatus passageway junction, makes the operation of annotating the liquid unable completion.

Through analysis of the above-described related art, there is a need for an endoscope in which the housing of the endoscope is coordinated with the components within the housing such that the center of gravity of the housing forming the handle is centered within the housing, while avoiding the luer fitting from encroaching upon the holding space of the handle by the physician in the event that the luer fitting meets functional requirements.

Disclosure of Invention

1. Technical problem

The application aims to overcome the defect of poor holding comfort when a doctor holds an endoscope to perform operation in the prior art, and provides the endoscope.

2. Technical proposal

In order to achieve the above purpose, the technical scheme provided by the application is as follows:

in a first aspect, the application relates to an endoscope comprising:

The device comprises a head end piece, an inserting piece, an operating piece and a connecting piece, wherein one end of the inserting piece is connected with the head end piece, the other end of the inserting piece is connected with the operating piece, the operating piece is connected with the connecting piece, and the connecting piece is used for connecting a host;

Wherein the operation piece includes: the handle shell is fixedly connected with the luer connector.

The luer connector is positioned on the front side of the handle shell, and the axis of the luer connector and the axis of the insert form a first included angle which is smaller than 90 degrees.

As a still further improvement of the present application, the handle housing includes: the luer connector is fixedly connected with the fixed convex ring, and is at least partially positioned in the fixed convex ring.

As a further improvement of the application, the insert comprises a rigid tube and a filler tube, one end of the filler tube is connected with the luer connector, and the rigid tube is sleeved outside the filler tube.

As a further improvement of the application, the liquid injection pipe comprises an insertion section, a bending section and a connecting section which are connected in sequence, at least the bending section of the liquid injection pipe is a rigid section, the axis of the insertion section and the axis of the connecting section form a second included angle, and the second included angle is the same as the first included angle.

As a further improvement of the application, the handle housing is provided with a first embedded groove, the insert comprises a tube body sheath, the tube body sheath is arranged in the first embedded groove, and the tube body sheath is sleeved outside the rigid tube.

As a further improvement of the present application, the handle housing is provided with a second insertion groove, and the connecting member includes: the handle wire and the handle wire sheath are fixed in the second embedded groove, and the handle wire sheath is sleeved on the outer side of the handle wire.

As a further improvement of the application, the connecting piece comprises a connector, the connector is electrically connected with one end of the handle wire, and the connector and the handle wire are of a split type design.

In a second aspect, the present application relates to an operation element for an endoscope:

One end of the operating piece is used for being connected with an insert of the endoscope, and the operating piece comprises a handle shell, a functional element and a luer connector;

The functional element is arranged inside the handle shell; the handle shell comprises an upper shell and a lower shell, and the upper shell is fixedly connected with the lower shell;

The luer connector is positioned on the front side of the handle shell, and the axis of the luer connector and the axis of the insert form a first included angle which is smaller than 90 degrees.

As a further improvement of the present application, the functional element is disposed between the upper case and the lower case so that the operating piece is centered in the middle of the handle case.

As a further improvement of the present application, the functional element includes: the keyset is fixed in the lower casing, keyset is located the front side of keyset.

As a still further improvement of the present application, the operating member includes: the button, the last casing is equipped with the button hole, the position of button hole corresponds the keypad, the button pass the button hole with the keypad is connected, the button is used for controlling the keypad.

As a further improvement of the application, one of the upper shell and the lower shell is provided with a plurality of clamping grooves, and the other is provided with a plurality of buckles, and the buckles correspond to the clamping grooves so as to enable the upper shell and the lower shell to be in clamping connection.

As a further improvement of the application, the upper shell comprises a positioning part, wherein the positioning part is used for positioning the key board, the key board is at least partially positioned in the positioning part, and at least a part of the buckles are distributed around the positioning part.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the application has the following beneficial effects:

The endoscope and the operating piece thereof comprise the structures of the handle shell, the luer connector, the functional element and the like, through improving the relative position relation between the luer connector and the handle shell, the luer connector can not generate any interference on the holding of the handle of the shell by a doctor, and meanwhile, the gravity center of the operating piece is positioned in the middle of the handle shell according to the structure of the handle shell and the position distribution of the functional element arranged in the handle shell, so that the handle of the shell can be better held when the doctor uses the endoscope to perform operation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings of the illustrative embodiments of the application and their description are for the purpose of illustrating the application and are not to be construed as unduly limiting the application.

In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.

FIG. 1 is a schematic view of the overall structure of an endoscope according to some embodiments of the present application;

FIG. 2 is an exploded view of an endoscope structure in accordance with some embodiments of the present application;

FIG. 3 is a schematic view of a liquid injection tube according to some embodiments of the present application;

FIG. 4 is a schematic view of an upper housing structure according to some embodiments of the present application;

FIG. 5 is a schematic view of an upper housing from another perspective according to some embodiments of the present application;

FIG. 6 is a schematic view of the internal structure of an endoscope according to some embodiments of the present application;

Reference numerals in the schematic drawings illustrate:

10. An endoscope;

100. A head end piece; 200. an insert; 300. an operating member; 400. a connecting piece;

110. a head end seat; 120. an imaging module;

210. A rigid tube; 220. a liquid injection pipe; 230. a tube body sheath;

221. an insertion section; 222. a curved section; 223. a connection section; 224. a second included angle;

310. A handle housing; 320. a luer fitting; 330. a first included angle; 340. a functional element; 350. a button; 360. a positioning part;

311. An upper housing; 312. a lower housing; 313. fixing the convex ring; 314. a first embedded groove; 315. a second insertion groove; 316. a key hole; 317. a clamping groove; 318. a buckle;

341. A key sheet; 342. an adapter plate;

410. a handle wire; 420. a handle wire sheath; 430. a connector;

Detailed Description

For a further understanding of the present application, the present application will be described in detail with reference to the drawings and examples.

The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the application, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the application, without affecting the effect or achievement of the objective. Also, the terms "upper", "lower", "left", "right", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the application for modification or adjustment of the relative relationships thereof, as they are also considered within the scope of the application without substantial modification to the technical context.

Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance. The terms "horizontal", "vertical" and the like in the description of the present application, if any, do not denote that the component is required to be absolutely horizontal or overhanging, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

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

In order to solve the technical problems that the comfort level of a doctor holding a handle of a handle shell is reduced due to the unreasonable gravity center of an endoscope operating piece and unreasonable position of a luer connector relative to the handle shell when the doctor performs an operation by using the endoscope in the background art, the application is as follows: on one hand, by improving the structure of the handle shell and the position distribution of the functional elements arranged in the handle shell, the gravity center of the operating piece is basically leveled with the gravity center of the handle of the shell; on the other hand, by adjusting the relative position of the luer connector relative to the handle housing, the space for holding the handle housing by a doctor is prevented from being occupied. Through the adjustment of the two aspects, the technical problem that the holding comfort of the current endoscope is poor is solved.

The application will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

Referring to fig. 1, an endoscope of the present embodiment includes: a head-end piece 100, an insert 200, an operating member 300, and a connecting member 400. The insert 200 has one end connected to the head end member 100 and the other end connected to the operation member 300, and the operation member 300 is connected to the connection member 400. The connector 400 is used for connecting with a host;

The head end piece 100 includes a head end seat 110, the head end seat 110 is used for installing the imaging module 120, different head end seats 110 can be selected according to different needs, the head end seat 110 is only needed to be a head end seat in the prior art, and the embodiment is not described in detail. The insert 200 is used to insert into the interior of the human body and to deliver the head end 100 to a site in the human body where surgery is desired.

The operation member 300 is used for operating the endoscope 10, specifically, the operation member 300 is integrated with various functional elements, and the control of the head and tail members 100, 200 can be completed by operating the operation member 300, for example, the image acquisition of the imaging module 120 can be controlled by operating buttons integrated with the operation member 100. The connector 400 is used for connecting with a host, which is generally composed of an image processing device and a display device, and is divided into a split host and an integrated host, wherein the connector 400 transmits a signal photoelectric signal to the host, and the signal photoelectric signal is processed and displayed at the host.

Specifically, referring to fig. 1 and 2, the operation piece 300 includes: a handle housing 310 and a luer fitting 320, the handle housing 310 being fixedly connected to the luer fitting 320. Luer fitting 320 is located on the front side of handle housing 310, which is the side of handle housing 310 that is proximal to the end that is connected to insert 200. Luer 320 is provided with a cavity, the axis of luer 320 intersects the axis of insert 200 at a first included angle 330, and first included angle 330 is less than 90 degrees.

By adjusting the relative positional relationship between the luer connector 320 and the handle housing 310, the technical problem that the luer connector 320 occupies the space of the handle housing 310 held by the doctor is solved, in other words, the luer connector 320 does not affect the holding of the handle housing 310 by the doctor. However, when the first included angle 330 is smaller than 90 degrees, a new technical problem may occur, and the difficulty in the process of using a medical device such as a syringe to enter the insert 200 through the luer connector 320 may be increased linearly, and when the medical device such as the syringe is a hose, the medical device may be folded at the first included angle 330, so that the injection or other operation is difficult to perform.

To solve the technical problem, the present application improves the structure of the insert 200, and in particular, the insert 200 includes: the rigid tube 210 and the liquid injection tube 220, one end of the liquid injection tube 220 is connected with the luer joint 320, and the rigid tube 210 is sleeved outside the liquid injection tube 220. In the insert 200, the filling tube 220 is formed as a component of the insert 200, and compared to the prior art, the filling tube 220 is a separate medical device, and the filling tube 220 needs to be a tube body with a certain flexibility when entering the insert 200 through the luer connector 320, and meanwhile, a first included angle 330 formed by the axis of the luer connector 320 and the axis of the insert 200 is required to be greater than or equal to 90 degrees.

The infusion tube 220 is built into the rigid tube 210 such that the infusion tube 220 and the rigid tube 210 together form part of an insert, i.e., the placement of the infusion tube into the rigid tube 210 is accomplished during the production of the endoscope 100, thereby eliminating the need for a separate infusion medical instrument during surgical procedures performed using the endoscope 100.

Although the design of the filler neck 220 as a portion of the insert 200 solves the technical problem of difficult placement due to the first angle 330 being less than 90 degrees during use of the endoscope 100, the technical problem of easy folding of the filler neck 220 at the first angle 330 is not completely solved. Further improvements are made to fill tube 220 to address this technical problem.

Referring to fig. 3, the filling pipe 220 includes: an insertion section 221, a bending section 222, and a connection section 223, which are sequentially connected. For the filling pipe 220, at least the bending section 222 needs to be a rigid pipe for solving the technical problem that the hose is easy to fold at the first included angle. Of course, for the production efficiency of the production end, the whole section of the liquid injection pipe 220 can be made of steel pipes. To facilitate connection of the filling tube 220 to the luer 320, the axis of the insertion section 221 and the axis of the connection section 223 form a second angle 224, the second angle 224 being at the same angle as the first angle 330.

Regarding the first angle 330 and the second angle 224 being essentially the same angle, specifically, the axis of the luer fitting 320 coincides with the axis of the connecting section 223 of the filler tube 220 after the endoscope 100 is assembled, the axis of the insert 200 coincides with the axis of the insertion section 221 of the filler tube 220. The same design of first angle 330 and second angle 224 results in a tighter connection of filling tube 220 to luer fitting 320.

Example 2

Referring to fig. 4, an endoscope of the present embodiment, in which a handle housing 310 is provided with a first insertion groove 314, an insert 200 includes: the tube sheath 230 is disposed in the first embedding groove 314, and the tube sheath 230 is sleeved outside the rigid tube 210.

Since the insert 200 is composed of the rigid tube 210 and the liquid injection tube 220, the rigid tube 210 is used as the outer sleeve of the liquid injection tube 220, both can be made of steel tubes, and provide sufficient rigidity for the endoscope 100, but the radial dimension of the insert 200 of the endoscope 100 is very small in practice, so as to reduce discomfort caused when the endoscope enters the human body, and the connection part of the rigid tube 210 and the handle housing 310 is easy to generate brittle fracture due to the very small radial dimension of the insert 200, therefore, a first embedded groove 314 is arranged at the connection part of the handle housing 310 and the rigid tube 210, the tube body sheath 230 is arranged at the first embedded groove 314, and the tube body sheath 230 is sleeved outside the rigid tube 210 for solving the brittle fracture of the rigid tube 210.

Example 3

Referring to fig. 4, in an endoscope of the present embodiment, a handle housing 310 is provided with a second insertion groove 315, and a connector 400 includes: the handle wire 410 and the handle wire sheath 420, the handle wire sheath 420 is fixed in the second embedded groove 315, and the handle wire sheath 420 is sleeved outside the handle wire 410.

The connector 400 is used for collecting photoelectric signals from the imaging assembly and transmitting the photoelectric signals to the host. The transmission of the photoelectric signal by the connector 400 generally includes both wired and wireless modes, and the present embodiment mainly describes the wired mode, and when the handle wire 410 is connected to the host, the handle wire 410 is often bent during the process of using the endoscope 100, and the handle wire is easily broken after a plurality of bending, especially at the interface between the handle wire 410 and the handle housing 310.

In order to solve the technical problem, the handle housing 310 is provided with a second embedded groove 315, the handle wire sheath 420 is installed in the second embedded groove 315, the handle wire sheath 420 is formed with a cavity, the handle wire 410 passes through the handle wire sheath 420, that is, the handle wire sheath 420 is sleeved outside the handle wire 410, thereby protecting the handle wire 410 and avoiding the breakage problem of the handle wire after multiple bending.

Example 4

Referring to fig. 2, an endoscope of the present embodiment, a connector 400 includes: the connector 430, the connector 430 is electrically connected with one end of the handle wire 410, and the connector 430 and the handle wire 410 are of a split type design or an integrated design.

When the connector 430 and the handle line 410 are designed in a split type, the applicable scene of the endoscope 100 can be increased, for example, different hosts may have different interfaces, if the connector 430 and the handle line 410 of the endoscope 100 are designed as a whole, the connector and the handle line 410 are bound, the endoscope can only be connected with the host of a specific interface, and the split type design solves the technical problem, one end of the connector 430 connected with the host can be designed with different interfaces, and only the type of the connector 430 needs to be adjusted, so that the endoscope 100 is adapted to the display hosts of different interfaces.

Example 5

Referring to fig. 2 and 6, an operation member 300 of an endoscope of the present embodiment includes: a handle housing 310, a functional element 340, and a luer 320, the functional element 340 being mounted inside the handle housing 310. The handle housing 310 includes an upper case 311 and a lower case 312, and the upper case 311 and the lower case 312 are fixedly connected.

In order to better connect the upper housing 311 with the luer connector 320, the upper housing 311 further includes a fixing collar 313, and the luer connector 320 is fixedly connected with the fixing collar 313, for example, the luer connector 320 is connected with the fixing collar 313 by an interference fit. The fixing collar 313 has an annular cavity formed therein, and the luer fitting 320 is connected to the filling tube 220 in the insert of the endoscope 100 as described above at least partially through the annular cavity formed in the fixing collar 313.

The connection between the luer fitting 320 and the handle housing 310 is the same as that of the above-described embodiment, and will not be repeated here.

The functional element 340 is disposed between the upper housing 311 and the lower housing 312 such that the center of gravity of the operating member 300 is located in the middle of the handle housing 310. When the center of gravity of the operation member 300 is located at the middle portion of the handle housing 310, a doctor can use the endoscope 100 to operate by simply holding the handle housing 310 without having to hold the rear side of the handle housing 310 because the center of gravity of the operation member 300 is close to the front side, so as to balance the problem that the center of gravity is not located at the middle portion of the handle housing 310.

The outer surfaces of the upper shell 311 and the lower shell 312 of the handle shell 310 are smooth curved surfaces, so that the shapes of the upper shell 311 and the lower shell 312 are in accordance with the ergonomics, and the holding hand feeling of a doctor when holding the shell handle 310 for working is improved.

In order to achieve the purpose that the center of gravity of the operation member 300 is located in the middle of the handle 310 of the housing, in addition to the improvement of the structure of the handle housing 310, it is necessary to make the handle housing 310 cooperate with the functional element 340 installed therein. Specifically, the functional element 340 includes: an adapter plate 342 and a key plate 341, the adapter plate 342 and the key plate 341 are fixed on the lower housing 312, the key plate 341 is positioned at the front side of the adapter plate 342

Referring to fig. 2 and 5, the operation member 300 further includes: the button 350, the upper case 311 is provided with a key hole 316, the position of the key hole 316 corresponds to the key pad 341, the button 350 is connected to the key pad 341 through the key hole 316, and the button 350 is used to operate the key pad 341.

In order to facilitate the doctor to perform the operation by using the operation member, the center of the luer connector 320 and the center of the key holes 316 are substantially in the same horizontal plane, the number of the key holes 316 is two, two key holes 316 correspond to two buttons 350, one button 350 is used for controlling the imaging module in the head end member 100 to take a photograph, and the other button 350 is used for controlling the imaging module in the head end member 100 to record a video.

Example 6

Referring to fig. 4 and 5, in the operating member of the endoscope of the present embodiment, one of the upper housing 311 and the lower housing 312 is provided with a plurality of locking grooves 317, and the other is provided with a plurality of buckles 318, and the buckles 318 correspond to the locking grooves 317, so that the upper housing 311 and the lower housing 312 are in locking connection. The positions of the buckle 318 and the clamping groove 317 are arranged at the edge of the shell, so that the peripheries of the upper shell 311 and the lower shell 312 can be tightly connected. By arranging the buckle 318 and the clamping groove 317, screw-free connection between the upper shell 311 and the lower shell 312 is realized, and the assembly efficiency is improved.

Example 7

Referring to fig. 4, the upper case 311 of the operation member of the endoscope of the present embodiment includes a positioning portion 360, and the positioning portion 360 is used to position the key sheet 341. The positioning portion 360 adopts an annular flange, and a partial region of the key sheet 341 is located in the annular flange. So that the button 350 and the key sheet 341 can be accurately aligned and connected.

To further improve the connection firmness between the upper shell 311 and the lower shell 312, at least a part of the plurality of buckles 318 are distributed around the positioning part 360, corresponding clamping grooves 317 are correspondingly formed on the lower shell 312, and the clamping grooves 317 and the buckles 318 enable the positions inside the upper shell 311 and the lower shell 312 to be tightly connected, so that the handle shell 310 always provides effective protection for the internal structure unless violent damage is performed.

The endoscope and the operating piece thereof solve the technical problem that the holding comfort is poor when a doctor holds the endoscope to perform operation by improving the structures of the insert 200 and the operating piece 300.

The application and its embodiments have been described above by way of illustration and not limitation, and the application is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present application.

Claims (13)

1. An endoscope comprises a head end piece (100), an insert (200), an operation piece (300) and a connecting piece (400), wherein one end of the insert (200) is connected with the head end piece (100), the other end of the insert is connected with the operation piece (300), the operation piece (300) is connected with the connecting piece (400), and the connecting piece (400) is used for being connected with a host;

Wherein the operation member (300) includes: a handle housing (310) and a luer connector (320), the handle housing (310) being fixedly connected with the luer connector (320);

The method is characterized in that: the luer fitting (320) is located on the front side of the handle housing (310), and a first included angle (330) is formed between the axis of the luer fitting (320) and the axis of the insert (200), and the first included angle (330) is smaller than 90 degrees.

2. An endoscope as defined in claim 1, wherein: the handle housing (310) includes: the luer connector (320) is fixedly connected with the fixing convex ring (313), and the luer connector (320) is at least partially positioned in the fixing convex ring (313).

3. An endoscope as defined in claim 1, wherein: the insert (200) comprises a rigid tube (210) and a liquid injection tube (220), one end of the liquid injection tube (220) is connected with the luer connector (320), and the rigid tube (210) is sleeved outside the liquid injection tube (220).

4. An endoscope as defined in claim 3, wherein: the liquid injection pipe (220) comprises an insertion section (221), a bending section (222) and a connecting section (223) which are sequentially connected, at least the bending section (222) of the liquid injection pipe (220) is a rigid section, a second included angle (224) is formed between the axis of the insertion section (221) and the axis of the connecting section (223), and the second included angle (224) is identical to the first included angle (330).

5. An endoscope as defined in claim 3, wherein: the handle housing (310) is provided with a first embedded groove (314), the insert (200) comprises a tube body sheath (230), the tube body sheath (230) is arranged in the first embedded groove (314), and the tube body sheath (230) is sleeved on the outer side of the rigid tube (210).

6. An endoscope as defined in claim 1, wherein: the handle housing (310) is provided with a second embedded groove (315), and the connecting piece (400) comprises: the handle wire (410) and the handle wire sheath (420), the handle wire sheath (420) is fixed in the second embedded groove (315), and the handle wire sheath (420) is sleeved outside the handle wire (410).

7. An endoscope as defined in claim 6, wherein: the connecting piece (400) comprises a connector (430), the connector (430) is electrically connected with one end of the handle wire (410), and the connector (430) and the handle wire (410) are of a split type design.

8. An operating member of an endoscope, one end of an operating member (300) being for connecting to an insert (200) of the endoscope, the operating member (300) comprising a handle housing (310), a functional element (340) and a luer fitting (320);

-said functional element (340) being mounted inside said handle housing (310); the handle shell (310) comprises an upper shell (311) and a lower shell (312), and the upper shell (311) is fixedly connected with the lower shell (312);

The luer connector (320) is located on the front side of the handle shell (310), and a first included angle (330) is formed between the axis of the luer connector (320) and the axis of the insert (200), and the first included angle (330) is smaller than 90 degrees.

9. The endoscope operating member of claim 8, wherein: the functional element (340) is disposed between the upper case (311) and the lower case (312) such that the center of gravity of the operation member (300) is located in the middle of the handle case (310).

10. The endoscope operating member of claim 9, wherein: the functional element (340) comprises: an adapter plate (342) and a key plate (341), wherein the adapter plate (342) and the key plate (341) are fixed on the lower shell (312), and the key plate (341) is positioned on the front side of the adapter plate (342).

11. The endoscope operating member of claim 10, wherein: the operating member (300) includes: the button (350), upper casing (311) are equipped with button hole (316), the position in button hole (316) corresponds keypad (341), button (350) pass button hole (316) with keypad (341) are connected, button (350) are used for controlling keypad (341).

12. The endoscope operating member of claim 11, wherein: the upper shell (311) and the lower shell (312) are provided with a plurality of clamping grooves (317) and a plurality of buckles (318), and the buckles (318) correspond to the clamping grooves (317) so that the upper shell (311) and the lower shell (312) are in clamping connection.

13. The endoscope operating member of claim 12, wherein: the upper shell (311) comprises a positioning part (360), the positioning part (360) is used for positioning the key board (341), the key board (341) is at least partially positioned in the positioning part (360), and at least a part of the buckles (318) are distributed around the positioning part (360).