CN222604520U

CN222604520U - Endoscope and endoscope kit

Info

Publication number: CN222604520U
Application number: CN202421088964.1U
Authority: CN
Inventors: 陆强; 肖云锋; 张华泉
Original assignee: Suzhou And Science & Technology Development Co ltd
Current assignee: Suzhou And Science & Technology Development Co ltd
Priority date: 2024-05-17
Filing date: 2024-05-17
Publication date: 2025-03-14
Anticipated expiration: 2034-05-17

Abstract

The utility model relates to an endoscope and an endoscope kit, wherein the endoscope comprises a handle, an endoscope rod and a fixing member are arranged on the handle, the fixing member is tubular and sleeved outside the endoscope rod, a gap is arranged between the fixing member and the endoscope rod, the handle is provided with a fixing hole matched with the fixing member, the handle is provided with a water storage tank, the water storage tank cooperates with the fixing member to form a first water storage cavity, the fixing member is provided with a water inlet, the water inlet is communicated with the first water storage cavity, the handle is provided with a water interface, one end of the water interface is connected to the first water storage cavity, and the other end of the water interface is connected to an external water supply device. The utility model arranges a tubular fixing member on the handle, arranges a water inlet on the fixing member, and arranges the endoscope rod in the fixing member, so that the endoscope of the utility model has the function of discharging water around the endoscope rod, is easy to assemble, and has low production cost.

Description

Endoscope and endoscope kit

Technical Field

The utility model relates to the field of medical instruments, in particular to an endoscope and an endoscope suite.

Background

In conventional endoscopes, it is generally required that the endoscope has functions such as illumination, imaging, and supply of physiological saline, and has a medical instrument channel.

For example, chinese patent No. 116784788B (visual hysteroscope assembly and disposable hysteroscope catheter) discloses an endoscope, wherein a flushing unit is arranged on a lens sheath and is used for cleaning a lens and a hysteroscope cavity to ensure clear surgical vision, the flushing unit comprises a first water outlet cavity arranged on the lens sheath, a first water suction cavity arranged on the lens sheath and a connecting pipe arranged on a shell, the connecting pipe is connected with the lens sheath, the lens sheath is a double-layer pipe, an inner cavity is used for accommodating a lens rod, an outer cavity is divided into two semicircular cavities, namely a first water outlet cavity and a first water suction cavity, the first water outlet cavity is used for spraying cleaning liquid, and the first water suction cavity is used for absorbing waste liquid.

However, in the technical scheme of CN116784788B, the sheath and the connecting tube are integrally formed, and because the sheath and the connecting tube contain complex waterways, the cross-sectional areas of the water channel pipes in the sheath and the connecting tube are smaller, and the production is not easy. Therefore, the endoscope adopting the technical scheme of CN116784788B needs higher manufacturing requirements and has higher production cost.

Disclosure of utility model

Aiming at the problems existing in the prior art, the utility model aims to provide an endoscope and an endoscope suite, which have the advantages of simple structure, convenient assembly and low production cost.

The aim of the utility model is achieved by the following technical scheme:

The utility model provides an endoscope, includes the handle, be equipped with the endoscope pole on the handle, still be equipped with the mounting on the handle, the mounting is tubulose and cover is established outside the endoscope pole, the mounting with be equipped with the clearance between the endoscope pole, be equipped with on the handle with mounting complex fixed orifices, be equipped with the aqua storage tank on the handle, the aqua storage tank with the mounting cooperation forms first water storage chamber, be equipped with the water inlet on the mounting, the water inlet with first water storage chamber intercommunication, just the mounting with the clearance of endoscope pole with the water inlet intercommunication, be equipped with the water interface on the handle, the one end and the first water storage chamber of water interface are connected, the other end and the outside water supply device of water interface are connected.

Further, a first operation channel is arranged in the endoscope rod along the axial direction of the endoscope rod, a second operation channel is arranged on the handle, one end of the second operation channel is connected to the outer surface of the handle, and the other end of the second operation channel is communicated with the first operation channel.

Furthermore, an illumination part and a camera part are arranged at one end of the endoscope rod, which is far away from the handle, an electric interface is arranged on the handle, the illumination part and the camera part are electrically connected with one end of the electric interface, and the other end of the electric interface is connected with an external power supply.

Further, an opening chamfer is arranged at the joint of the second operation channel and the outer surface of the handle.

Further, a first sealing element is arranged between the endoscope rod and the fixing element, the first sealing element surrounds the endoscope rod, the first sealing element is arranged at one end, close to the handle, of the endoscope rod, and the water inlet is arranged at one side, far away from the handle, of the first sealing element.

Further, the fixing piece is provided with a reinforcing piece, and the reinforcing piece abuts against the handle.

Further, a tongue piece is arranged at one end of the fixing piece far away from the handle.

Further, the fixing piece comprises a first pipe fitting and a second pipe fitting, one end of the first pipe fitting is connected with one end of the second pipe fitting, the water inlet is formed in the first pipe fitting, the endoscope rod is arranged in the first pipe fitting and the second pipe fitting, the second pipe fitting deviates from the axis of the first pipe fitting, and the water inlet is formed in the pipe wall of one side, away from the joint of the second pipe fitting and the first pipe fitting, of the first pipe fitting.

The endoscope suite comprises the endoscope and the external operation suite, wherein the external operation suite comprises a first sleeve and a second sleeve, the wall of the first sleeve is connected with the wall of the second sleeve, and the first sleeve is sleeved outside the fixing piece.

Further, the first sleeve is rotatable about the mount.

Further, a rotating handle is arranged on the first sleeve.

Compared with the prior art, the endoscope has the beneficial effects that the handle is provided with the tubular fixing piece, the fixing piece is provided with the water inlet, and the endoscope rod is arranged in the fixing piece, so that the endoscope has the function of water outlet around the endoscope rod, and meanwhile, the assembly is convenient, and the production cost is low.

Drawings

FIG. 1 is a schematic perspective view of a handle of the present utility model;

FIG. 2 is a schematic perspective view of an endoscope of the present utility model;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a top view of an endoscope of the present utility model;

FIG. 5 is a cross-sectional view of the B-B plane of FIG. 4;

FIG. 6 is an enlarged schematic view of portion C of FIG. 5;

FIG. 7 is a first perspective view of the mount of the present utility model;

FIG. 8 is a second perspective view of the mount of the present utility model;

FIG. 9 is a perspective partial cross-sectional view of an endoscope of the present utility model;

FIG. 10 is an enlarged schematic view of portion D of FIG. 9;

FIG. 11 is a schematic illustration of the location of the junction and water inlet of the present utility model;

FIG. 12 is a schematic perspective view of an external operating kit of the present utility model;

Fig. 13 is a schematic perspective view of an endoscope assembly of the present utility model.

In the figure:

1-handle, 101-fixed hole, 102-second operation channel, 103-water interface, 104-electric interface, 105-water supply pipe, 2-endoscope rod, 201-first operation channel, 3-fixing piece, 301-water inlet, 302-first pipe, 303-second pipe, 304-tongue-shaped piece, 305-blocking part, 4-first water storage cavity, 5-lighting part, 6-camera part, 7-first sealing piece, 8-reinforcing piece, 9-second sealing piece, 10-external operation sleeve, 1001-first sleeve, 1002-second sleeve and 1003-rotating handle.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

The utility model discloses an endoscope which is mainly used in orthopedic operations and integrates an illuminating device, a camera device, a water outlet device, an instrument channel for medical equipment such as a puncture outfit and the like.

As shown in fig. 1 to 3, the endoscope of the present utility model includes a handle 1, a circular tube-shaped endoscope rod 2 is provided on the handle 1, an illumination portion 5 and an image pickup portion 6 are provided on an end of the endoscope rod 2 away from the handle 1, the illumination portion 5 adopts an LED light source in this embodiment, and the image pickup portion 6 adopts an electronic camera in this embodiment. Meanwhile, in order to facilitate the entry of the endoscope bar 2 into the patient, the endoscope bar 2 is inclined away from the opening at one side of the handle 1. The handle 1 is provided with an electric interface 104, the illumination part 5 and the camera part 6 are electrically connected with one end of the electric interface 104, and the other end of the electric interface 104 is detachably connected with an external power supply. When the endoscope of the present utility model is used, the illumination unit 5 emits light after the electrical interface 104 is connected to an external power source, and the image pickup unit 6 transmits an image signal to an external display by wireless transmission, so that an operator views the image picked up by the image pickup unit 6 through the external display.

As shown in fig. 4 to 6, the endoscope bar 2 is provided with a first operation channel 201 provided along an axial direction of the endoscope bar 2, the first operation channel 201 is tubular, and the first operation channel 201 penetrates the endoscope bar 2. The handle 1 is provided with a second operation channel 102, the second operation channel 102 is also tubular, a first end of the second operation channel 102 is connected to the outer surface of the handle 1, an opening chamfer is arranged at the joint of the second operation channel 102 and the outer surface of the handle 1, the opening chamfer is convenient for a medical device such as a puncture outfit to enter the second operation channel 102 from the first end of the second operation channel 102, and a second end of the second operation channel 102 is communicated with the first operation channel 201. In detail, the second end of the second operation channel 102 is inserted into the endoscope bar 2, and the second operation channel 102 is connected to the first operation channel 201 as an integral channel. The doctor can insert the medical equipment such as the puncture outfit into the second operation channel 102 from the first end of the second operation channel 102, and pass the medical equipment such as the puncture outfit out from the end of the first operation channel 201 away from the handle 1, when the doctor finds the operation position, the doctor can operate the medical equipment such as the puncture outfit to be close to the end of the handle 1, thereby realizing the operation of the medical equipment and performing the operation.

As shown in fig. 1, 5 to 10, the endoscope of the present utility model includes a fixing member 3 further provided on the handle 1, the fixing member 3 is tubular and is sleeved outside the endoscope rod 2, and a gap is provided between the fixing member 3 and the endoscope rod 2. As shown in fig. 1, the handle 1 is provided with a fixing hole 101 for fitting the fixing member 3, and the fixing member 3 is inserted into the fixing hole 101 together with the endoscope bar 2 at the time of assembly, so that the handle 1, the endoscope bar 2 and the fixing member 3 are integrally formed. As shown in fig. 10, the handle 1 is provided with a water storage tank, and the water storage tank and the fixing piece 3 cooperate to form a first water storage cavity 4. Specifically, the side wall of the fixing piece 3 seals the opening of the water storage tank, and the side wall of the fixing piece 3 and the water storage tank are combined to form a closed cavity. The fixing piece 3 is provided with a water inlet 301, the water inlet is in a hole shape, the water inlet 301 is communicated with the first water storage cavity 4, and a gap between the fixing piece 3 and the endoscope rod 2 is communicated with the water inlet 301. The handle 1 is provided with a water interface 103, one end of the water interface 103 is connected with the first water storage cavity 4, and the other end of the water interface 103 is detachably connected with an external water supply device. The endoscope rod 2 with be equipped with first sealing member 7 between the mounting 3, first sealing member 7 is rubber seal, first sealing member 7 encircles the endoscope rod 2 sets up, just first sealing member 7 sets up the one end that the endoscope rod 2 is close to handle 1, water inlet 301 sets up first sealing member 7 is kept away from one side of handle 1.

As shown in fig. 6, when the endoscope of the present utility model is in use, an external water supply device for supplying physiological saline is connected to the water port 103. Physiological saline enters the first water storage cavity 4 through the water interface 103, and then the physiological saline in the first water storage cavity 4 enters a gap between the fixing piece 3 and the endoscope rod 2 through the water inlet 301. Due to the blocking of the first seal 7, the physiological saline can flow only toward the side away from the handle 1, and finally the physiological saline flows out from the gap between the fixing member 3 and the endoscope shaft 2 on the side close to the image pickup portion 6.

According to the utility model, the fixing piece 3 in a tubular shape is arranged on the handle 1, the water inlet 301 is arranged on the fixing piece 3, and the endoscope rod 2 is arranged in the fixing piece 3, so that the structure of the fixing piece 3 and the handle 1 is simpler while the endoscope has the function of discharging water around the endoscope rod, and the assembly among the endoscope rod 2, the fixing piece 3 and the handle 1 is more convenient, and the production cost of the endoscope is lower.

Meanwhile, as shown in fig. 5 and 6, a water supply pipe 105 is provided in the handle 1, one end of the water supply pipe 105 is connected to the water port 103, and the other end of the water supply pipe 105 is connected to the water storage tank, that is, the other end of the water supply pipe 105 is connected to the first water storage chamber 4. If the first water storage chamber 4 is not provided, the water supply pipe 105 needs to be directly connected to the water inlet 301. If the water supply pipe 105 is directly connected to the water inlet 301, it is difficult to ensure the alignment between the water supply pipe 105 and the water inlet 301 and to maintain the sealing between the water supply pipe 105 and the water inlet 301 when the fixing member 3 and the handle 1 are assembled. In the present utility model, therefore, a water storage tank is provided on the handle 1, and second seals 9 are provided on both sides of the water storage tank. When the fixing piece 3 is assembled on the handle 1, the fixing piece 3 and the water storage tank are matched to form the first water storage cavity 4, the second sealing piece 9 is arranged on two sides of the water storage tank, and meanwhile, the second sealing piece 9 is also arranged between the fixing piece 3 and the handle 1, so that the sealing of the first water storage cavity 4 is guaranteed. In this embodiment, the water storage tank is annular, so after the opening of the water storage tank is closed by the fixing member 3, the first water storage chamber 4 is also annular, the second sealing member 9 is two sealing rings arranged at two sides of the water storage tank, the second sealing member 9 is sleeved at the outer side of the fixing member 3 at the same time, and the second sealing member 9 fills the gap between the fixing member 3 and the handle 1. Thus, the problem that the water supply pipe 105 is difficult to align and seal with the water inlet 301 is not considered during the assembly of the fixing member 3 into the fixing hole 101. The endoscope is provided with the water storage tank, so that the fixing piece 3 is convenient to assemble, and the first water storage cavity 4 forms a water storage cavity, so that the effect of stabilizing the water outlet pressure is achieved, and the influence of water pressure fluctuation of an external water supply device on the water outlet pressure of the endoscope is reduced.

In this embodiment, as shown in fig. 6 to 10, the fixing member 3 includes a first pipe member 302 and a second pipe member 303. The first pipe fitting 302 and the second pipe fitting 303 are all in a circular pipe shape and are arranged coaxially, one end of the first pipe fitting 302 is connected with one end of the second pipe fitting 303, the water inlet 301 is arranged on the first pipe fitting 302, the endoscope rod 2 is arranged in the first pipe fitting 302 and the second pipe fitting 303, in order to facilitate the fixing piece 3 to be inserted into the fixing hole 101, the outer diameter of the first pipe fitting 302 is larger than the outer diameter of the second pipe fitting 303, and in the assembling process of the fixing piece 3 and the handle 1, the fixing hole 101 is inserted by the first pipe fitting 302. The assembly of the first tube member 302 is facilitated when assembled by the larger outer diameter of the first tube member 302. In other embodiments, to facilitate the first tube 302 to be inserted into the fixing hole 101 more quickly, the first tube 302 may also be a tube with a square outer portion and a round inner portion, and the fixing hole 101 may be square to match the first tube 302.

In other embodiments, as shown in fig. 11, the second pipe 303 is connected to the first pipe 302 on a plane where the cross section of the second pipe 303 is located, and the cross section of the second pipe 303 is located in the cross section of the first pipe 302. And the section of the second pipe 303 is arranged offset from the axis of the first pipe 302, and the water inlet 301 is arranged on the pipe wall of the first pipe 302 at the side far away from the joint of the second pipe 303 and the first pipe 302. In fig. 11, the axial direction of the first pipe 302 is set in the horizontal direction, the first pipe 302 is divided into an upper pipe wall and a lower pipe wall along the gravity direction, the connection between the second pipe 303 and the first pipe 302 is set close to the lower pipe wall of the first pipe 302, and the water inlet 301 is set on the upper pipe wall of the first pipe 302, that is, the water inlet 301 is set away from the connection between the second pipe 303 and the first pipe 302. In the gravity direction, the connection between the second pipe 303 and the first pipe 302 is located below the water inlet 301. Therefore, when the first pipe 302 is filled with the physiological saline, due to the gravity of the water, the water pressure of the second pipe 303 is greater than the water pressure of the connection part of the first pipe 302 near the water inlet 301, which is favorable for the physiological saline to flow out of the second pipe 303, so that the water pressure of the water supply of the external water supply device can be reduced, and the energy consumption of the external water supply device can be reduced.

As shown in fig. 2 and 3, in this embodiment, an end tongue 304 is disposed on a side of the fixing member 3 away from the handle 1. Since the endoscope of the present utility model is used for an orthopedic operation in which the tongue piece 304 is passed through a gap between a bone and a nerve near the bone, and the nerve near the bone is located on a side of the tongue piece 304 away from the endoscope bar 2, and the bone is located on a side of the tongue piece 304 close to the endoscope bar 2. By the tongue-shaped piece 304, when the medical instrument in the first operation channel 201 performs an operation on the bone, the accidental injury to the nerve near the bone can be avoided.

As shown in fig. 7, in this embodiment, the fixing element 3 further includes a blocking portion 305, where the blocking portion 305 is annular, and the blocking portion 305 is disposed at a connection position between the first pipe 302 and the second pipe 303. When the first pipe member 302 and the fixing hole 101 are assembled with each other, it may be provided that the first pipe member 302 and the fixing hole 101 are mounted in place when the blocking portion 305 abuts against the handle 1.

The present utility model further facilitates assembly of the endoscope by providing the blocking portion 305.

In this embodiment, as shown in fig. 4, the fixing member 3 is provided with a reinforcing member 8, and the reinforcing member 8 is disposed against the handle 1. Specifically, the blocking portion 305 and the second pipe 303 are both connected to the reinforcing member 8. Since the second pipe 303 is long, the second pipe 303 is not easily deformed by being bent by force due to the reinforcement member 8.

As shown in fig. 12 and 13, the present utility model also provides an endoscope kit comprising the endoscope described above and an external operating kit 10, the external operating kit 10 comprising a first sleeve 1001 and a second sleeve 1002. The pipe wall of the first sleeve 1001 and the pipe wall of the second sleeve 1002 are connected with each other, and the first sleeve 1001 is sleeved outside the fixing member 3. Specifically, the first sleeve 1001 is sleeved on the outer side of the second pipe 303, and the second sleeve 1002 may be used for passing medical instruments such as a tissue clamp. According to the utility model, by the arrangement that the external operation sleeve 10 is sleeved outside the second pipe 303, two medical instruments can be simultaneously and respectively inserted into the second sleeve 1002 and the first operation channel 201 in an orthopedic operation, so that two medical instruments such as tissue clamps and the like can be simultaneously operated in the operation, thereby facilitating the operation.

In this embodiment, as shown in fig. 12 and 13, the first sleeve 1001 and the second sleeve 1002 are obliquely disposed, and the direction of the acute angle included between the first sleeve 1001 and the second sleeve 1002 is set towards the direction away from the handle 1, so that the ends of the two medical instruments away from the handle 1 can approach each other, which is convenient for the operation.

In this embodiment, as shown in fig. 13, the first sleeve 1001 may rotate around the fixing member 3. Specifically, a rotation groove may be disposed on the inner wall of the second sleeve 1002, the plane of the rotation groove is parallel to the plane perpendicular to the axis of the second sleeve 1002, and a rotation ring matched with the rotation groove is disposed on the outer wall of the second pipe 303. According to the utility model, the first sleeve 1001 can rotate around the axis of the second pipe 303, so that a doctor can adjust the relative position of the medical instrument in the first sleeve 1001 in the medical instrument in the first operation channel 201 during operation, thereby facilitating the operation of the doctor.

In this embodiment, the first sleeve 1001 is provided with a rotating handle 1003, and in detail, the rotating handle 1003 is disposed at an end of the first sleeve 1001 near the handle 1, and when the first sleeve 1001 needs to rotate around the fixing member 3, the rotating handle 1003 can be operated to rotate the first sleeve 1001.

In summary, according to the present utility model, the fixing member 3 having a tubular shape is provided on the handle 1, the water inlet 301 is provided on the fixing member 3, and the endoscope rod 2 is provided in the fixing member 3, so that the structure of the fixing member 3 and the handle 1 is relatively simple, and the assembly of the endoscope rod 2, the fixing member 3 and the handle 1 is relatively convenient, and the production cost of the endoscope is relatively low. And the influence on the water outlet pressure of the endoscope caused by the water pressure fluctuation of the external water supply device is reduced by the arrangement of the first water storage cavity 4. By the tongue piece 304, when the medical instrument in the first operation channel 201 performs an operation on the bone, the accidental injury to the nerve near the bone can be avoided. By the provision of the blocking portion 305, the assembly of the endoscope is further facilitated. And by the provision of the reinforcement member 8, the second pipe member 303 is not easily deformed by being subjected to bending by force. And by arranging the first pipe member 302 offset from the axis of the first pipe member 302, the water inlet 301 is provided on the pipe wall of the first pipe member 302 on the side away from the junction of the first pipe member 302 and the second pipe member 303, the water supply pressure of the external water supply device can be reduced. And through the arrangement of the external operation sleeve 10 sleeved outside the second pipe 303, two medical instruments can be simultaneously and respectively inserted into the second sleeve 1002 and the first operation channel 201 in the orthopedic operation, so that two medical instruments such as tissue clamps can be simultaneously operated in the operation, and the operation is convenient. And by disposing the first sleeve 1001 and the second sleeve 1002 obliquely, a surgical operation is facilitated. By providing the first sleeve 1001 to be rotatable about the fixing member 3, the operation of the surgeon can be facilitated.

It should be emphasized that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and not intended to limit the present utility model in any way, and any simple modification, equivalent variation and modification made to the above-mentioned embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.

Claims

1. An endoscope, comprising a handle (1), wherein the handle (1) is provided with an endoscope rod (2), characterized in that the handle (1) is also provided with a fixing member (3), the fixing member (3) is tubular and sleeved outside the endoscope rod (2), a gap is provided between the fixing member (3) and the endoscope rod (2), the handle (1) is provided with a fixing hole (101) matched with the fixing member (3), the handle (1) is provided with a water storage tank, the water storage tank and the fixing member are connected to each other. (3) cooperate to form a first water storage chamber (4), the fixing member (3) is provided with a water inlet (301), the water inlet (301) is communicated with the first water storage chamber (4), and the gap between the fixing member (3) and the endoscope rod (2) is communicated with the water inlet (301), the handle (1) is provided with a water interface (103), one end of the water interface (103) is connected to the first water storage chamber (4), and the other end of the water interface (103) is connected to an external water supply device.

2. The endoscope according to claim 1 is characterized in that a first operating channel (201) is provided in the endoscope rod (2) along the axial direction of the endoscope rod (2), and a second operating channel (102) is provided on the handle (1), one end of the second operating channel (102) is connected to the outer surface of the handle (1), and the other end of the second operating channel (102) is connected to the first operating channel (201).

3. The endoscope according to claim 2 is characterized in that a lighting unit (5) and a camera unit (6) are provided on the end of the endoscope rod (2) away from the handle (1), and an electrical interface (104) is provided on the handle (1), and the lighting unit (5) and the camera unit (6) are both electrically connected to one end of the electrical interface (104), and the other end of the electrical interface (104) is connected to an external power supply.

4. The endoscope according to claim 2, characterized in that an opening chamfer is provided at the connection between the second operating channel (102) and the outer surface of the handle (1).

5. The endoscope according to claim 1, characterized in that a first sealing member (7) is provided between the endoscope rod (2) and the fixing member (3), the first sealing member (7) is arranged around the endoscope rod (2), and the first sealing member (7) is arranged at an end of the endoscope rod (2) close to the handle (1), and the water inlet (301) is arranged on a side of the first sealing member (7) facing away from the handle (1).

6. The endoscope according to claim 1, characterized in that a reinforcing member (8) is provided on the fixing member (3), and the reinforcing member (8) is arranged to abut against the handle (1).

7. The endoscope according to claim 1, characterized in that a tongue-shaped piece (304) is provided at one end of the fixing member (3) away from the handle (1).

8. An endoscope kit, characterized in that it comprises the endoscope described in any one of claims 1 to 7 and an external operation kit (10), the external operation kit (10) comprising a first sleeve (1001) and a second sleeve (1002), the tube wall of the first sleeve (1001) and the tube wall of the second sleeve (1002) are connected to each other, and the first sleeve (1001) is sleeved on the outside of the fixing member (3).

9. The endoscope kit according to claim 8, characterized in that the first sleeve (1001) can rotate around the fixing member (3).

10. The endoscope kit according to claim 9, characterized in that a rotating handle (1003) is provided on the first sleeve (1001).