Video tube and endoscope

Abstract

The embodiment of the present application provides a video tube and an endoscope. The video tube is used for plugging and unplugging with an endoscope mounting assembly. The video tube includes a core tube and an elastic member. The core tube includes a main insertion section and a head end section along its length. The head end section is sleeved with the distal end of the main insertion section. The head end section and / or the main insertion section can produce axial movement toward each other under the action of an external force. The elastic member is disposed within the core tube. The elastic member can compress and return to drive the head end section to produce a tendency to axially move away from the main insertion section. The video tube provided by the embodiment of the present application has a simple structure and an adaptive length function to achieve accurate and appropriate fit between the end of the video tube and the cavity of the endoscope mounting assembly used to install the video tube. The problem of reduced adaptability caused by manufacturing and assembly errors can be effectively solved, facilitating the video tube to obtain high-quality images and reducing the probability of damage to the video tube caused by hard collisions during installation.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a video tube and an endoscope. Background Art

[0002] In the related art, an endoscope generally has an insertion tube that extends into the human or animal body through a natural cavity or surgical stoma. This type of endoscope is provided with a working channel tube, a liquid inlet cavity, and a video device. It is often used as a reusable device and generally requires high-level disinfection and sterilization measures after use, such as immersion disinfection. However, the narrow and complex cavity structure in the endoscope poses a risk of cross infection due to incomplete disinfection and sterilization; moreover, high-level disinfection and sterilization measures have cumbersome procedures and high costs. In the related art, the entire endoscope is treated as a disposable consumable and discarded as a whole after use. Although this avoids the problem of high-level disinfection and sterilization, the cost of use is still very high.

[0003] To reduce disinfection and sterilization issues, lower the chance of cross-infection, and lower the cost of use, a video cannula is provided inside the insertion tube of an endoscope, which is sleeved over the video tube and has a transparent optical window that seals the distal end of the video cannula. The high-cost video tube and related video system are designed as reusable devices, while the low-cost video cannula, insertion tube, and other components are designed as disposable devices, thereby reducing the chance of cross-infection and lowering the cost of use. However, this type of endoscope requires that the distal optical system of the video tube and the optical window of the video cannula accurately and appropriately fit together. If the distal optical system of the video tube and the optical window of the video cannula do not fit together well, for example, if the two are not fully fitted together or if there is excessive force between the two, the imaging of the video tube will be seriously affected, and may even damage the distal optical system of the video tube and the optical window of the video cannula.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the application and should not be regarded as an admission or any form of suggestion that the information has become the prior art known to those skilled in the art. Summary of the Invention

[0005] In view of this, the embodiment of the present application hopes to provide a video tube and endoscope with adaptive length function, simple structure and low cost. To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0006] A video tube for plugging and unplugging with an endoscope mounting assembly, comprising:

[0007] A core tube, wherein the core tube includes a main insertion section and a head end section along its length, wherein the proximal end of the head end section is sleeved with the distal end of the main insertion section, and the head end section and / or the main insertion section can generate axial movement toward each other under the action of an external force;

[0008] An elastic member is disposed in the core tube, and the elastic member is compressible and restorable to drive the head end section to generate a tendency to move axially in a direction away from the main insertion section.

[0009] In some embodiments, the head end section includes a first main body tube and a first sleeve tube, the first sleeve tube is fixed to the proximal end of the first main body tube as an independent component, the main insertion section includes a second main body tube and a second sleeve tube, the second sleeve tube is fixed to the distal end of the second main body tube as an independent component, and the head end section and the main insertion section are sleeved together through the first sleeve tube and the second sleeve tube.

[0010] In some embodiments, a first contraction section is formed at the distal end of the second main body tube, the first contraction section is inserted into the proximal end of the second sleeve tube, the first sleeve tube is passed through the distal end of the second sleeve tube, one end of the elastic member abuts against the end of the second main body tube, and the other end of the elastic member abuts against the end of the first sleeve tube.

[0011] In some embodiments, the second sleeve tube has a accommodating cavity, the first contraction section is accommodated in the accommodating cavity, the first sleeve tube includes a first sleeve section and a second sleeve section along the length direction, the outer diameter of the first sleeve section is larger than the outer diameter of the second sleeve section, the first sleeve section is inserted into the accommodating cavity, the distal side wall of the accommodating cavity protrudes inward to form a limiting wall, the proximal end of the first sleeve section abuts against the elastic member, and the distal end of the first sleeve section can be detachably abutted against the limiting wall.

[0012] In some embodiments, the circumferential outer side wall of the first sleeve segment is tangent to the side wall of the accommodating cavity.

[0013] In some embodiments, a second contraction section is formed at the proximal end of the second sleeve tube, the second contraction section is inserted into the distal end of the second main body tube, the first sleeve tube is sleeved on the distal end of the second sleeve tube, one end of the elastic member abuts against the distal end of the second main body tube, and the other end of the elastic member abuts against the proximal end of the first sleeve tube.

[0014] In some embodiments, the second sleeve tube is sleeved on the outside of the first sleeve tube, and the distal end of the second sleeve tube is axially spaced from the proximal end of the first main body tube to limit the axial movement range of the head end section; or, the first sleeve tube is sleeved on the outside of the second sleeve tube, and the proximal end of the first sleeve tube is axially spaced from the distal end of the second main body tube to limit the axial movement range of the head end section.

[0015] In some embodiments, the elastic member is a compression spring.

[0016] In some embodiments, the distal end of the head end section is integrated with an optical component and a photoelectric conversion component, the photoelectric conversion component is used to convert the optical signal of the optical component into an electrical signal, the video tube includes a signal line, the signal line is arranged in the core tube and extends along the length direction of the core tube, and the distal end of the signal line is connected to the photoelectric conversion component.

[0017] In some embodiments, the video tube includes a disk portion, which is connected to the proximal end of the core tube. The disk portion includes a disk body and a protrusion protruding along the disk body toward the head end section. The distal end of the protrusion is provided with a plurality of first electrical terminals, and the proximal end of the signal line is electrically connected to the first electrical terminals.

[0018] The present invention provides an endoscope, comprising:

[0019] The endoscope mounting assembly and the video tube described in any embodiment of the present application;

[0020] The endoscope mounting assembly comprises:

[0021] handle assembly;

[0022] an insertion tube, a proximal end of which is connected to the handle assembly;

[0023] a video cannula, which is inserted into the insertion tube and has a video channel therein, and a closed optical window at the distal end of the video cannula;

[0024] The core tube can be inserted into the video channel, and the distal end portion of the head end section can abut against the inner surface of the optical window.

[0025] In some embodiments, the video sleeve is formed with a video plug-in port on the outer surface of the handle assembly, and the video tube is detachably plugged into and pulled out of the video channel through the video plug-in port.

[0026] In some embodiments, the video cannula includes a first video cannula and a second video cannula connected to each other along the length direction, the proximal end of the video cannula forms the video plug-in port at the proximal end of the handle assembly, the first video cannula has a first video channel, the proximal end of the second video cannula extends into and is fixed in the first video channel, and the other end penetrates into the insertion tube, and the cross-sectional area of ​​the first video channel gradually decreases from the proximal end to the distal end.

[0027] In some embodiments, the video tube has a plurality of second electrical terminals, the video tube includes a disk portion, the disk portion includes a disk body and a protrusion protruding from the disk body toward the video tube, a plurality of first electrical terminals are integrated on the side of the protrusion facing the video tube, the first electrical terminals and the second electrical terminals are detachably conductively connected, and the endoscope mounting assembly includes a data exchange interface for interacting with external equipment, and the data exchange interface is electrically connected to the second electrical terminals.

[0028] In some embodiments, the proximal end of the video sleeve passes through the proximal end of the handle assembly, the proximal end of the video sleeve has a recess and the video plug-in port, the proximal end of the video sleeve is recessed toward the direction close to the insertion tube to form a recess, the second electrical terminal is arranged at the distal end of the recess and the second electrical terminal passes through the groove wall of the recess along the plug-in and pull-out direction of the video tube, one end of the second electrical terminal is exposed in the recess, and the other end extends into the space in the handle assembly, and the protrusion extends into and is fixed in the recess.

[0029] In some embodiments, the endoscope mounting assembly includes a cable and a light emitter for providing illumination for the field of view of the video tube, wherein the light emitter is disposed at the distal end of the insertion tube, one end of the cable is electrically connected to the light emitter, and the other end extends to the handle assembly.

[0030] In some embodiments, the endoscope mounting assembly includes a data exchange interface for interacting with an external device, and the cable is electrically connected to the data exchange interface.

[0031] The video tube provided in the embodiment of the present application has a simple structure and an adaptive length. The length of the video tube can be automatically adapted according to the length of the cavity for installing the video tube in the endoscope mounting assembly, so as to achieve accurate and appropriate matching between the end of the video tube and the cavity for installing the video tube in the endoscope mounting assembly. It can also effectively solve the problem of reduced adaptability caused by manufacturing errors and assembly errors in the video tube and the cavity for installing the video tube in the endoscope mounting assembly, solve the problem of product consistency, thereby facilitating the video tube to obtain high-quality images, reducing the probability of damage to the video tube due to hard collision when the video tube is plugged in and out of the endoscope mounting assembly, reducing the cost of use, and improving the working efficiency of the video tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of an endoscope according to an embodiment of the present application;

[0033] Figure 2 for Figure 1 An exploded schematic diagram of the endoscope shown;

[0034] Figure 3 A schematic structural diagram of a video tube according to an embodiment of the present application;

[0035] Figure 4 for Figure 3 An exploded schematic diagram of the video tube shown;

[0036] Figure 5 for Figure 3 A schematic cross-sectional view of the video tube shown;

[0037] Figure 6 for Figure 5 A magnified schematic diagram of part A in the middle;

[0038] Figure 7 for Figure 1 A schematic diagram of the internal structure of the endoscope shown;

[0039] Figure 8 for Figure 1 A schematic diagram of the internal structure of the endoscope shown in another perspective;

[0040] Figure 9 for Figure 1 A schematic cross-sectional view of the endoscope shown;

[0041] Figure 10 for Figure 9 an enlarged schematic view of the distal end of the endoscope;

[0042] Figure 11 for Figure 1 Another schematic cross-sectional view of the endoscope shown, with the video tube omitted;

[0043] Figure 12 for Figure 1 A schematic cross-sectional view of a portion of the structure of the endoscope shown;

[0044] Figure 13 for Figure 1 Another schematic cross-sectional view of a portion of the endoscope shown;

[0045] Figure 14 for Figure 2 Schematic diagram of the coordination of the fixed bracket, video sleeve, working channel tube, cable and light emitter;

[0046] Figure 15 for Figure 12 A schematic diagram of the structure shown in another perspective;

[0047] Figure 16 for Figure 1 A cross-sectional diagram of the distal end components of the endoscope is shown, omitting the light emitter, cable, tube cover, and glue layer;

[0048] Figure 17 for Figure 1 A cross-sectional diagram of the distal end components of the endoscope is shown, with the glue layer omitted;

[0049] Figure 18 for Figure 1 A schematic cross-sectional view of the distal end face of the endoscope is shown.

[0050] Description of Reference Numerals

[0051] 1-endoscope; 1a-data exchange interface;

[0052] 10-handle assembly; 101-handle; 102-handle; 103-first clamping portion; 10a-mounting port; 10b-through hole;

[0053] 11-insertion tube assembly; 110-insertion tube; 110a-liquid outlet; 111-fixed bracket; 111a-first hole; 111b-second hole; 111c-through hole; 111d-arc-shaped surface; 1111-mounting block; 112-glue layer;

[0054] 12-working channel tube; 12a-outlet;

[0055] 13 - Video casing; 13a - Video plug-in port; 13b - Recess; 130 - Video channel; 131 - First video casing; 132 - Second video casing; 133 - Second electrical terminal; 1311 - First video channel; 134 - Optical window;

[0056] 14-video tube; 141-disc; 1410-disc body; 1411-protrusion; 142-core tube; 143-first electrical terminal; 144-photoelectric conversion component; 145-optical component; 142a-head end section; 142b-main insertion section; 1421-first main body tube; 1422-first sleeve tube; 1423-second main body tube; 1424-second sleeve tube; 1423a-first contraction section; 1424a-accommodation cavity; 1422a-first sleeve section; 1422b-second sleeve section; 14241-limiting wall; 146-elastic member; 147-signal line;

[0057] 15-end cap; 151-second clamping portion; 16-cable; 17-light emitter; 171-circuit board; 172-light emitting chip; 18-connector; 181-flow channel; 19-liquid inlet pipe; 20-turntable;

[0058] 21- adapter; 21a- first opening; 21b- second opening; 21c- adapter;

[0059] 22-drain pipe; 23-water inlet valve. DETAILED DESCRIPTION

[0060] In the description of the embodiments of the present application, it should be noted that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present application.

[0061] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features; and in the description of this application, unless otherwise specified, "plurality" means two or more.

[0062] The embodiment of the present application provides a video tube 14 , including a core tube 142 and an elastic member 146 .

[0063] The present application embodiment provides an endoscope 1, see Figure 1 and Figure 2 The endoscope 1 includes an endoscope mounting assembly and a video tube 14 of any embodiment of the present application.

[0064] For the convenience of description, the end that extends into or approaches the human or animal body during operation is called the distal end, and the end held by the operator or the end close to the operator's grip is called the proximal end.

[0065] The video tube 14 is used to be plugged in and out with the endoscope mounting assembly to form the endoscope 1 for inspecting, diagnosing and performing surgical treatment on the internal tissues of the human body or animal body.

[0066] See also Figure 3 and Figure 4 The core tube 142 includes a main insertion section 142b and a head end section 142a along the length direction. The proximal end of the head end section 142a is socketed with the distal end of the main insertion section 142b. The head end section 142a and / or the main insertion section 142b can produce axial movement toward each other under the action of external force.

[0067] The elastic member 146 is disposed in the core tube 142 . The elastic member 146 can be compressed and restored to drive the head end section 142 a to generate a tendency to move axially in a direction away from the main insertion section 142 b .

[0068] It should be noted that the head end section 142a and / or the main insertion section 142b can be axially moved toward each other under the action of an external force, including various situations. In some embodiments, the head end section 142a is axially moved toward the main insertion section 142b under the action of an external force; in other embodiments, the main insertion section 142b is axially moved toward the head end section 142a under the action of an external force; and in still other embodiments, the head end section 142a and the main insertion section 142b are axially moved toward each other under the action of an external force.

[0069] Specifically, when the video tube 14 is plugged in and out of the endoscope mounting assembly, when the distal end surface of the head end section 142a abuts against the distal inner surface of the cavity in the endoscope mounting assembly for installing the video tube 14, the head end section 142a is subjected to external force from the distal end surface of the cavity in the endoscope mounting assembly for installing the video tube 14, and produces axial movement toward the main insertion section 142b. At this time, the elastic member 146 is compressed and deformed under pressure; when the video tube 14 and the cavity in the endoscope mounting assembly for installing the video tube 14 are completed, the rebound force of the elastic member 146 drives the head end section 142a to produce a tendency to move axially in the direction away from the main insertion section 142b, so that the distal end surface of the head end section 142a maintains an abutment state with the distal inner surface of the cavity in the endoscope mounting assembly for installing the video tube 14, thereby achieving stable cooperation between the video tube 14 and the endoscope mounting assembly.

[0070] It can be understood that the rebound force of the elastic member 146 drives the head end section 142a to have a tendency to move axially in a direction away from the main insertion section 142b. It can be that the head end section 142a does not produce axial movement under the action of the rebound force of the elastic member 146 and stably cooperates with the endoscope mounting assembly. It can also be that the head end section 142a moves axially in a direction away from the main insertion section 142b under the action of the rebound force of the elastic member 146, thereby stably cooperating with the endoscope mounting assembly.

[0071] It can be understood that after the video tube 14 is installed in the endoscope mounting assembly, the head end section 142a is still subjected to external force. The external force is removed only after the video tube 14 is pulled out. After the video tube 14 is completely pulled out, the elastic member 146 recovers its deformation, and the head end section 142a is also restored to its initial position under the action of the elastic member 146. The initial position refers to the position of the head end section 142a when it is not subjected to external force.

[0072] It should be noted that the distal end of the endoscope has an optical window that can focus light and whose optical axis transmission direction can be controlled and changed. The optical window may include a prism group and a concave lens group, etc. The distal end of the video tube has a video system that further processes and converges the light from the optical window and then converts the optical signal into an electrical signal for transmission. The video system is a high-precision component. When the video tube is plugged in and out of the endoscope mounting assembly, the video system should be accurately aligned with the optical window. The video system should not apply excessive force to the optical window, nor should the length of the video tube exceed the length of the cavity in the endoscope mounting assembly for installing the video tube, thereby causing the video tube and the endoscope mounting assembly to be incompatible.

[0073] Therefore, in the embodiment of the present application, the head end section 142a and / or the main insertion section 142b can generate axial movement toward each other under the action of external force, and the elastic member 146 can be compressed and restored to drive the head end section 142a to generate an axial movement tendency toward the main insertion section 142b, so that when the video tube 14 is plugged in and out of the endoscope mounting assembly, the length of the video tube 14 has an adaptive function, and the length of the video tube 14 can be adjusted to the cavity inside the endoscope mounting assembly for mounting the video tube 14. The length of the channel is automatically adapted. In addition, a driving force can be provided for the axial alignment of the distal end surface of the head end section 142a and the optical window to achieve accurate and appropriate fit between the two, thereby reducing the probability of damage to the distal end surface of the head end section 142a and the cavity for installing the video tube 14 in the endoscope mounting assembly due to forced fit, and also reducing the probability of a fit gap due to the head end section 142a failing to fit tightly with the cavity for installing the video tube 14 in the endoscope mounting assembly, thereby facilitating the video tube 14 to obtain high-quality images.

[0074] It is understandable that the specific structural form of the elastic member 146 is not limited, as long as it can be compressed and generate a rebound force so that the head end section 142a tends to move axially in a direction away from the main insertion section 142b. For example, the elastic member 146 is a compression spring.

[0075] The formation of the lumen of the endoscope mounting assembly for mounting the video tube 14 is not limited. In some examples, the endoscope mounting assembly includes a handle assembly 10, an insertion tube assembly 11, and a video cannula 13. The insertion tube assembly 11 includes an insertion tube 110, the proximal end of which is connected to the handle assembly 10. The video cannula 13 is disposed within the insertion tube 110 and defines a video channel 130 for mounting the video tube 14. In other words, in this embodiment, the endoscope mounting assembly is provided with the video cannula 13 to achieve mounting and mating with the video tube 14. The video tube 14 is mated to the video cannula 13 in a pluggable manner. The distal end of the video cannula 13 defines a closed optical window 134. The core tube 142 is inserted into the video channel 130, with the distal end of the tip section 142a abutting against the inner surface of the optical window 134.

[0076] It is understandable that, in this embodiment, the optical window 134 is formed at the distal end of the video tube 13 , and the video tube 14 can be inserted into the video tube 13 to achieve abutment and fit with the inner surface of the optical window 134 .

[0077] Specifically, the core tube 142 is inserted into the video channel 130, and the head end section 142a moves axially toward the main insertion section 142b under the action of external force, and the compression elastic member 146 causes the elastic member 146 to be compressed and deformed, and the elastic member 146 has a rebound force that pushes the head end section 142a to move axially toward the direction away from the main insertion section 142b, and also provides drive for the axial alignment of the head end section 142a and the optical window 134. The circumference of the head end section 142a is limited by the circumferential inner surface of the video channel 130, so that the distal end of the head end section 142a is appropriately fitted with the inner surface of the optical window 134. In this way, the length of the core tube 142 can be adapted to the video channel 130, and the video sleeve 13 can also protect the video tube 14, so that the video tube 14 can obtain high-quality images.

[0078] The optical window 134 may include a concave lens and a total reflection prism, which can focus light and change the direction of light to facilitate the video tube 14 to obtain an image. The concave lens may be a plano-concave lens, etc.

[0079] The video tube 14 provided in the embodiment of the present application has a simple structure, and the length of the video tube 14 has an adaptive function. The length of the video tube 14 can be automatically adapted according to the length of the cavity for installing the video tube 14 in the endoscope mounting assembly, so as to achieve accurate and appropriate matching between the distal end of the video tube 14 and the cavity for installing the video tube in the endoscope mounting assembly. When there is a large error between the length of the video tube 14 and the length of the cavity for installing the video tube 14 in the endoscope mounting assembly, the head end section 142a of the video tube 14 can be caused to move axially by external force to shorten the length of the video tube 14, and the elastic member 1 can be used to adjust the length of the video tube 14. The rebound effect of 46 causes the head end section 142a to have a tendency to move axially in a direction away from the main insertion section 142b, and to abut and fit with the distal inner surface of the cavity for installing the video tube 14 in the endoscope mounting assembly, effectively solving the problem of reduced adaptability caused by manufacturing errors and assembly errors of the video tube and the cavity for installing the video tube in the endoscope mounting assembly, thereby facilitating the video tube 14 to obtain high-quality images, reducing the probability of damage to the video tube 14 caused by hard collision when the video tube 14 is plugged in and out of the endoscope mounting assembly, reducing the cost of use, and improving the working efficiency of the video tube 14.

[0080] The handle assembly 10 is provided with a liquid inlet channel. It should be noted that the liquid inlet channel is a section of the channel through which the external fluid passes through the handle assembly 10, which can be a channel formed by the tubular cavity, or a combination of the channel formed by the tubular cavity and channels formed by other components.

[0081] The distal end surface of the insertion tube 110 has a liquid outlet 110 a .

[0082] It is understandable that the interior of the insertion tube 110 has a free space, and the free space communicates with the liquid inlet channel and the liquid outlet 110 a , wherein the free space is an unoccupied space inside the insertion tube 110 .

[0083] It is understood that the external fluid flows into the human or animal body through the liquid inlet channel, the free space, and the liquid outlet 110a, expanding the observation area to observe or flush the internal tissues of the human or animal body. The external fluid can be 5% glucose solution or physiological saline.

[0084] The endoscope mounting assembly includes a working channel tube 12 , which has a working channel formed therein for surgical instruments to pass through. The working channel tube 12 is disposed inside the insertion tube 110 and has an outlet 12 a formed at the distal end surface of the insertion tube 110 .

[0085] The surgical instrument is inserted from the working channel tube 12 and extends into the human or animal body from the outlet 12a. The specific type of the surgical instrument is not limited, for example, biopsy forceps, scissors, fixed drill, touch probe, tenaculum forceps, electrodes, etc.

[0086] It should be noted that for some applications that require entering the human or animal body through a natural cavity or surgical stoma, for straight endoscopes without side or oblique viewing functions, in order to facilitate observation, the operator has to hold the handle assembly of the endoscope and perform adjustment operations such as "picking" or "prying" to obtain a suitable observation range or field of view. However, adjustment operations such as "picking" or "prying" have requirements on the size of the natural cavity or surgical stoma of the human or animal body, which cannot be too small. On the other hand, such adjustment operations are also prone to causing damage to the human or animal body.

[0087] In the related art, the front end of the endoscope does not adopt an optical design with a strabismus function. The camera can only obtain the front image, but has no side view function. In order to obtain the side image of the video tube, the video tube is pre-bent to bend the distal end of the endoscope into a certain angle for easy observation. However, the pre-bent angle will cause operational inconvenience during use, and the field of view is not convenient to adjust and the instrument is not smooth in use.

[0088] In the embodiment of the present application, a straight endoscope 1 is used, which greatly reduces the adjustment operations such as "picking" or "prying" on the endoscope, making it easier for the operator to obtain a suitable observation angle. In addition, the distal end of the endoscope 1 in the embodiment of the present application also has an optical window 134 that can focus light and the transmission direction of the optical axis can be controlled and changed. The diffusely reflected light in the human or animal tissue can change the transmission direction after entering the optical steering component, so that the endoscope 1 has a side view or squint function.

[0089] It should be noted that the shape of the distal end surface of the endoscope 1 is not limited and can be a plane, a hemispherical surface, or other shapes. In some examples, the distal end surface of the endoscope 1 is formed as an inclined surface, and the inclination angle can be 0° to 90°, for example, 0°, 12°, 17°, 30°, 50°, 70°, 85°, 89°, etc. A certain inclination angle facilitates the video tube 14 to obtain an image and obtain a larger observation field of view.

[0090] The matching method of the video tube 14 and the video sleeve 13 is not limited. In some embodiments, please refer to Figures 7 to 10 The video sleeve 13 is formed with a video plug-in port 13a at the proximal end of the handle assembly 10, and the video tube 14 is separably plugged in and out of the video channel 130 through the video plug-in port 13a.

[0091] It should be noted that, except for the video plug-in port 13a, the rest of the video channel 130 is closed.

[0092] During use, the video tube 14 can be directly inserted into or removed from the video sleeve 13 through the video insertion and removal port 13a. This is simple to operate and convenient for assembly and disassembly. The video sleeve 13 can protect the video tube 14 so that the video tube 14 does not come into contact with the internal tissues or liquids of the human or animal body. This can reduce the chance of cross infection when the video tube 14 is reused, lower the disinfection level of the video tube 14, and reduce the disinfection cost.

[0093] It should be noted that according to relevant medical disinfection and sterilization regulations, reusable equipment that comes into contact with human or animal tissue during surgery requires high-level disinfection after surgery. If the surgical equipment does not come into contact with human or animal tissue, the disinfection level can be reduced to general disinfection, such as wiping. In related technologies, the end of the video tube is exposed at the distal end of the endoscope and may come into contact with human or animal body secretions and potentially human or animal tissue. Therefore, high-level disinfection, such as immersion disinfection, high-temperature steam sterilization, or ethylene oxide sterilization, is required after surgery.

[0094] The handle assembly 10, insertion tube 110, working channel tube 12, and video cannula 13 can be made of any material. The insertion tube 110 can be flexible or rigid, and the insertion tube 110, working channel tube 12, and video cannula 13 can be made of either metal or plastic. For example, the handle assembly 10 can be made of plastic for low cost, while the working channel tube 12, video cannula 13, and insertion tube 110 can be made of steel for high strength and light weight.

[0095] The handle assembly 10, insertion tube 110, working channel tube 12 and video tube 13 can be used as disposable medical devices. The video tube 14, which has a high production cost, can be reused. After use, it can be directly removed from the video tube 13 and can be used again after wiping and low-level disinfection.

[0096] In this embodiment, the video sleeve 13 protects the video tube 14, and the video tube 14 does not come into contact with the human or animal body, nor does it come into contact with the liquid entering the endoscope 1, thereby avoiding cross infection caused by incomplete cleaning and disinfection, and reducing the probability of image blurring caused by damage to the front end lens of the video tube due to excessive disinfection times in the related art. The video tube 14 is reusable and does not need to undergo a high-level disinfection process such as soaking in disinfectant in the postoperative disinfection procedure. It can be reused after being disinfected by a low-level disinfection method such as wiping, which is convenient, fast and low-cost.

[0097] The specific structures of the head end section 142a and the main insertion section 142b are not limited, and the method of achieving the socket connection is not limited.

[0098] For some examples, see Figure 4 、 Figure 5 and Figure 6 The head end section 142a includes a first main body tube 1421 and a first sleeve tube 1422. The first sleeve tube 1422 is fixed to the proximal end of the first main body tube 1421 as an independent component. The main insertion section 142b includes a second main body tube 1423 and a second sleeve tube 1424. The second sleeve tube 1424 is fixed to the distal end of the second main body tube 1423 as an independent component. The head end section 142a and the main insertion section 142b are sleeved together through the first sleeve tube 1422 and the second sleeve tube 1424.

[0099] The first main body tube 1421 can provide support for the first sleeve tube 1422, and the second main body tube 1423 can provide support for the second sleeve tube 1424. In this way, the stability of the sleeve connection between the head end section 142a and the main insertion section 142b can be improved, and the axial length and outer diameter of the first sleeve tube 1422 and the second sleeve tube 1424 do not need to be very large, as long as they can be sleeved. The outer diameter of the second sleeve tube 1424 can be basically the same as the outer diameter of the first main body tube 1421, without the need to increase the size, reducing the installation space of the video tube 14, facilitating the insertion of the video tube 14 into the cavity of the endoscope mounting assembly for installing the video tube 14, and realizing plug-in and pull-out cooperation with the endoscope mounting assembly. Specifically, it is convenient for the video tube 14 to be inserted into the video channel 130.

[0100] The material of the first main tube 1421, the first sleeve tube 1422, the second main tube 1423, and the second sleeve tube 1424 is not limited. For example, the first main tube 1421, the first sleeve tube 1422, the second main tube 1423, and the second sleeve tube 1424 are made of stainless steel, which has high processing precision, high material strength, and corrosion resistance.

[0101] The second sleeve tube 1424 and the second main body tube 1423 can be matched in any manner. For example, the second sleeve tube 1424 can be sleeved over the second main body tube 1423, or the second main body tube 1423 can be sleeved over the second sleeve tube 1424. The first sleeve tube 1422 and the second sleeve tube 1424 can be connected in any manner. For example, the first sleeve tube 1422 can be sleeved over the second sleeve tube 1424, or the second sleeve tube 1424 can be sleeved over the first sleeve tube 1422. Any arrangement is acceptable as long as the length of the video tube 14 can be adaptively adjusted.

[0102] For some examples, see Figure 6 A first contraction section 1423 a is formed at the distal end of the second main body tube 1423 . The first contraction section 1423 a is inserted into the proximal end of the second sleeve tube 1424 . The first sleeve tube 1422 is passed through the distal end of the second sleeve tube 1424 .

[0103] In other embodiments, a second contraction section is formed at the proximal end of the second sleeve tube 1424 , and the second contraction section is inserted into the proximal end of the second main body tube 1423 , and the first sleeve tube 1422 is sleeved on the distal end of the second sleeve tube 1424 .

[0104] One end of the elastic member 146 abuts against the end of the second main body tube 1423 , and the other end of the elastic member 146 abuts against the end of the first sleeve tube 1422 .

[0105] Specifically, when the video tube 14 is plugged in and out of the video sleeve 13, the first main body tube 1421 is subjected to an external force from the inner surface of the optical window 134 at the distal end of the video sleeve 13 toward the second main body tube 1423, thereby pushing the first sleeve tube 1422 to move axially toward the second main body tube 1423, and the elastic member 146 is compressed and deformed. At the same time, the first sleeve tube 1422 is also subjected to the rebound force generated by the elastic member 146, so that the first sleeve tube 1422 has a tendency to move toward the direction away from the second main body tube 1423, so that the distal end of the head end section 142a can be reliably abutted against the inner surface of the optical window 134.

[0106] For some examples, see Figure 6 The second sleeve tube 1424 has an accommodating cavity 1424a, and the first contraction section 1423a is accommodated in the accommodating cavity 1424a. The first sleeve tube 1422 includes a first sleeve section 1422a and a second sleeve section 1422b along the length direction. The outer diameter of the first sleeve section 1422a is larger than the outer diameter of the second sleeve section 1422b. The first sleeve section 1422a is inserted into the accommodating cavity 1424a, and the distal side wall of the accommodating cavity 1424a protrudes inward to form a limiting wall 14241. The proximal end of the first sleeve section 1422a abuts against the elastic member 146, and the distal end of the first sleeve section 1422a can detachably abut against the limiting wall 14241.

[0107] The proximal end of the first sleeve segment 1422a abuts against the elastic member 146, and the distal end is affected by the limiting wall 14241, that is, the axial movement of the first sleeve segment 1422a is limited in the accommodating cavity 1424a. The accommodating cavity 1424a provides protection for the movement of the first sleeve segment 1422a, so that the movement of the first sleeve segment 1422a and the elastic member 146 will not be affected by other components, thereby avoiding scratches and increasing the stability of the video tube 14.

[0108] For some examples, see Figure 6The circumferential outer side wall of the first sleeve segment 1422a is tangent to the side wall of the accommodating cavity 1424a, which facilitates the movement of the first sleeve segment 1422a in the accommodating cavity 1424a, making the movement of the first sleeve segment 1422a smoother, reducing the resistance during the movement and more conducive to the alignment and abutment of the distal end of the head end segment 142a with the distal end of the cavity of the endoscope mounting assembly for installing the video tube 14. Specifically, it is conducive to the alignment and abutment of the distal end of the head end segment 142a with the optical window 134 at the distal end of the video sleeve 13.

[0109] For some examples, see Figure 6 The second sleeve tube 1424 is sleeved on the outside of the first sleeve tube 1422, and the distal end of the second sleeve tube 1424 and the proximal end of the first main body tube 1421 are axially spaced apart to limit the axial movement stroke of the head end section 142a.

[0110] Under the action of external force, the head end section 142a can move axially toward the main insertion section 142b, and its movement range is limited by the structure in which the distal end of the second sleeve tube 1424 and the proximal end of the first main body tube 1421 are axially spaced apart.

[0111] Under the action of the rebound force of the elastic member 146, the head end section 142a can produce a tendency to move axially in the direction away from the main insertion section 142b, and its movement stroke is limited by the distance between the distal end of the first sleeve section 1422a and the limiting wall 14241 of the second sleeve tube 1424.

[0112] That is, when the head end section 142a is acted upon by an external force and moves axially toward the direction approaching the main insertion section 142b, the spaced-apart structure between the distal end of the second sleeve tube 1424 and the proximal end of the first main body tube 1421 limits its movement displacement. When the head end section 142a is acted upon by the rebound force of the elastic member 146 and moves axially toward the direction away from the main insertion section 142b, the axial spacing between the distal end of the first sleeve section 1422a and the limiting wall 14241 of the second sleeve tube 1424 limits the movement stroke of the head end section 142a, thereby limiting and protecting the head end section 142a, preventing damage to the head end section 142a and the cavity of the endoscope mounting assembly for mounting the video tube 14, specifically, preventing damage to the distal end of the video tube 14 and the optical window 134.

[0113] In other embodiments, the first sleeve tube 1422 is sleeved on the outside of the second sleeve tube 1424, and the proximal end of the first sleeve tube 1422 and the distal end of the second main body tube 1423 are axially spaced apart to limit the axial movement stroke of the head end section 142a.

[0114] Under the action of external force, the head end section 142a can move axially toward the main insertion section 142b, and its movement range is limited by the structure in which the proximal end of the first sleeve tube 1422 and the distal end of the second main body tube 1423 are axially spaced apart.

[0115] Under the action of the rebound force of the elastic member 146, the head end section 142a can produce a tendency to move axially in the direction away from the main insertion section 142b, and its movement stroke is limited by the distance between the distal end of the first sleeve section 1422a and the limiting wall 14241 of the second sleeve tube 1424.

[0116] That is, when the head end section 142a is acted upon by an external force and moves axially toward the direction approaching the main insertion section 142b, the spaced-apart structure between the proximal end of the first sleeve tube 1422 and the distal end of the second main body tube 1423 limits its movement displacement; when the head end section 142a is acted upon by the restoring force of the elastic member 146 and moves axially toward the direction away from the main insertion section 142b, the axial spacing between the distal end of the first sleeve section 1422a and the limiting wall 14241 of the second sleeve tube 1424 limits the movement stroke of the head end section 142a, thereby limiting and protecting the head end section 142a, preventing damage to the head end section 142a and the cavity of the endoscope mounting assembly for mounting the video tube 14, specifically, preventing damage to the distal end of the video tube 14 and the optical window 134.

[0117] It is understandable that there is no limit to the fixing method of the first main tube 1421 and the first sleeve tube 1422 , and there is no limit to the fixing method of the second main tube 1423 and the second sleeve tube 1424 , for example, gluing, welding, etc.

[0118] Taking the welding of the first main tube 1421 and the first sleeve tube 1422, and the welding of the second main tube 1423 and the second sleeve tube 1424 as an example, Figure 6 The installation process of the head end section 142a and the main insertion section 142b in one embodiment of the present application is briefly described.

[0119] During installation, the first sleeve 1422 is first extended into the second sleeve 1424, a portion of the first sleeve 1422 remains in the second sleeve 1424, and a portion passes through the distal end of the second sleeve 1424 and extends into the inner side of the proximal end of the first main body tube 1421. The first main body tube 1421 and the structure of the first sleeve 1422 extending into the first main body tube 1421 are welded and fixed. In this way, the first main body tube 1421 and the first sleeve 1422 form a head end section 142a, and the portion of the first sleeve 1422 that is not welded to the first main body tube 1421 can produce axial movement. It can be understood that a gap is reserved between the proximal end of the first main body tube 1421 and the distal end of the second sleeve 1424 to limit the movement stroke of the head end section 142a. The elastic member 146 is placed in the second sleeve tube 1424, and the first contraction section 1423a at the distal end of the second main body tube 1423 extends into the second sleeve tube 1424. The second sleeve tube 1424 and the first contraction section 1423a are welded together. In this way, the second main body tube 1423 and the second sleeve tube 1424 form the main insertion section 142b.

[0120] The specific structure of the video tube 14 is not limited.

[0121] For some examples, see Figures 4 to 6 The distal end of the head end section 142a is integrated with an optical component 145 and a photoelectric conversion component 144. The photoelectric conversion component 144 is used to convert the optical signal of the optical component 145 into an electrical signal. The video tube 14 includes a signal line 147. The signal line 147 is arranged in the core tube 142 and extends along the length direction of the core tube 142. The distal end of the signal line 147 is connected to the photoelectric conversion component 144.

[0122] The optical component 145 may be one or more lenses, configured to converge and transmit light to the photoelectric conversion component 144 .

[0123] The photoelectric conversion component 144 is used to convert the optical signal from the optical component 145 into an electrical image signal. The photoelectric conversion component 144 can be a CCD (charge coupled device) or a CMOS (complementary metal oxide semiconductor), or other types, which are not limited here.

[0124] It is understandable that the photoelectric conversion component 144 acquires the light signal, generates the image signal and transmits it. In addition, the endoscope 1 can process the original image signal through the image processing board, for example, removing noise from the image, correcting wide-angle distortion, improving contrast, eliminating red-eye phenomenon, etc., to improve the image quality, and then transmit the processed image. The image processing board is not limited to the location where it is set. It can be set on the video tube 14, inside the handle assembly 10, or on an external device, as long as it can process the image. In some embodiments, the size of the video tube 14 is small and the signal transmission path is relatively short. The image processing board can be set on an external device.

[0125] The signal transmission method between the video tube 14 and the external device is not limited, and can be wired transmission or wireless transmission.

[0126] For some examples, see Figures 2 to 5 The video tube 14 includes a disk portion 141, which is connected to the proximal end of the core tube 142. The disk portion 141 includes a disk body 1410 and a protrusion 1411 protruding along the disk body 1410 toward the direction close to the head end section 142a. A plurality of first electrical terminals 143 are provided at the distal end of the protrusion 1411, and the proximal end of the signal line 147 is electrically connected to the first electrical terminal 143.

[0127] For some examples, see Figures 7 to 9 The disk portion 141 is covered on the proximal end of the video sleeve 13. The disk portion 141 includes a disk body 1410 and a protrusion 1411 protruding from the disk body 1410 toward the video sleeve 13. The first electrical terminal 143 is integrated on the side of the protrusion facing the video sleeve 13. The first electrical terminal 143 establishes a conductive path with the photoelectric conversion component 144, and the electrical signal converted by the photoelectric conversion component 144 is transmitted to the first electrical terminal 143 through the signal line 147.

[0128] The video tube 13 has a plurality of second electrical terminals 133 . The first electrical terminal 143 is detachably and conductively connected to the second electrical terminals 133 . The endoscope mounting assembly includes a data exchange interface 1 a for interacting with external devices. The data exchange interface 1 a is electrically connected to the second electrical terminals 133 .

[0129] When the endoscope 1 is in operation, light reflected from the observed part of the human or animal body is converged and transmitted through the optical window to the optical component 145. The optical component 145 further processes the incoming light and converges it before transmitting it to the photoelectric conversion component 144. The photoelectric conversion component 144 converts the optical signal into an electrical image signal. The electrical image signal is transmitted via the signal line 147 to the first electrical terminal 143 and the second electrical terminal 133, and then to the data exchange interface 1a. The image can then be displayed on an external device, thereby obtaining a clear image of the observed tissue for diagnosis, treatment, and corresponding surgical operations. The connection method between the first electrical terminal 143 and the second electrical terminal 133 is not limited.

[0130] See also Figures 7 to 9 The proximal end of the video cannula 13 passes through the proximal end of the handle assembly 10. The proximal end of the video cannula 13 has a recess 13b and a video plug-in port 13a. The proximal end of the video cannula 13 is recessed toward the direction close to the insertion tube 110 to form the recess 13b. The second electrical terminal 133 is provided at the distal end of the recess 13b and the second electrical terminal 133 passes through the groove wall of the recess 13b along the plug-in and pull-out direction of the video tube 14.

[0131] One end of the second electrical terminal 133 is exposed in the recess 13b to electrically cooperate with the first electrical terminal 143, and the other end extends into the space in the handle assembly 10 to facilitate electrical connection with the data exchange interface 1a via a connecting line. The protrusion 1411 extends into and is fixed in the recess 13b. In other words, the first electrical terminal 143 and the second electrical terminal 133 are conductively connected along the plugging and unplugging direction of the video tube 14.

[0132] In this way, the second electrical terminal 133 will not affect the plugging and unplugging of the video tube 14 and the video sleeve 13 , and the connection between the second electrical terminal 133 and the data exchange interface 1 a does not need to be in direct contact with the video tube 14 .

[0133] It should be noted that the insertion orientation of the video tube 14 will also affect the acquisition of images from the video tube 14. If the video tube rotates or deflects during insertion, it will affect the acquisition of images in the normal orientation by the video tube. Therefore, in the embodiment of the present application, the protrusion 1411 of the video tube 14 cooperates with the recess 13b of the video sleeve 13 to play a limiting and directional role when the video tube 14 is inserted into the video sleeve 13, thereby increasing the reliability of the insertion of the video tube 14 and preventing the video tube 14 from being inserted into the video sleeve 13 at any rotation angle, which would affect the imaging.

[0134] It can be understood that the circumferential surface of the protrusion 1411 has a certain taper, and the cross-sectional area of ​​the protrusion 1411 gradually decreases in the direction approaching the recess 13b. The portion of the recess 13b corresponding to the protrusion 1411 also has a certain taper, and the cross-sectional area of ​​the recess 13b also gradually decreases in the direction from the proximal end to the distal end. In this way, when the protrusion 1411 cooperates with the recess 13b on the video sleeve 13, the gradual structure of the protrusion 1411 and the recess 13b can facilitate the insertion and removal of the video tube 14, and the circumferential surface of the protrusion 1411 can fit tightly with the inner wall of the recess 13b, which is convenient for limiting the orientation of the video tube 14 and preventing the video tube 14 from rotating at any angle. In addition, when the video tube 14 is inserted into the video sleeve 13 , the protrusion 1411 can also work together with the distal end section 142 a and the main insertion section 142 b to position and fix the video tube 14 , further increasing the positioning reliability of the video tube 14 .

[0135] The shape of the protrusion 1411 is not limited. For example, see Figure 15 The cross section of the protrusion 1411 is roughly crescent-shaped. When the video tube 14 and the video sleeve 13 are plugged in and out, it can cooperate with the recess 13b to limit the orientation without affecting the insertion of the core tube 142 into the video sleeve 13.

[0136] The video tube 14 and the handle assembly 10 may be coupled in any manner, such as by snap connection, threaded connection, etc.

[0137] For example, see Figures 7 to 9 The endoscope mounting assembly includes an end cover 15. The proximal end surface of the handle assembly 10 is provided with a first clamping portion 103. The end cover 15 is covered around the disk portion 141, that is, the disk portion 141 is accommodated inside the end cover 15. The circumferential surface of the end cover 15 is provided with a second clamping portion 151. The first clamping portion 103 and the second clamping portion 151 are detachably clamped to press the disk portion 141 against the proximal end portion of the video sleeve 13.

[0138] Specifically, the video tube 14 is inserted into the video sleeve 13, with the disk 141 located at the proximal end of the video sleeve 13, and the end cap 15 is then placed around the disk 141. The end cap 15 is rotated so that the first clamping portion 103 and the second clamping portion 151 engage with each other. The end surface of the end cap 15 applies a force toward the distal end to the disk 141, thereby pressing the disk 141 against the end of the video sleeve 13 to prevent the video tube 14 from falling out or loosening.

[0139] The first clamping portion 103 and the second clamping portion 151 make it easier to assemble and disassemble the handle assembly 10 and the video tube 14, facilitate the operation of medical staff, improve operational convenience, and save surgical preparation time. In addition, there is no need to set a connecting structure on the video tube 14 for connecting to the handle assembly 10, making the structure of the disc portion 141 simpler.

[0140] The specific structure of the insertion tube assembly 11 is not limited, for example, please refer to Figure 2 and Figure 14 The insertion tube assembly 11 includes a fixing bracket 111 and a glue layer 112. The fixing bracket 111 is connected to the inner wall of the insertion tube 110. The fixing bracket 111 is formed with a first hole 111a and a second hole 111b. The working channel tube 12 is constrained in the first hole 111a, and the visual sleeve 13 is constrained in the second hole 111b to fix the distal ends of the working channel tube 12 and the visual sleeve 13 inside the insertion tube 110.

[0141] It should be noted that the shapes of the first hole 111a and the second hole 111b are not limited, as long as the distal ends of the working channel tube 12 and the visual sleeve 13 can be fixed inside the insertion tube 110. For example, the first hole 111a and the second hole 111b can be circular. In this way, the working channel tube 12 and the visual sleeve 13 are more strongly constrained, thereby improving the fixing effect of the fixing bracket 111.

[0142] The fixing bracket 111 can reliably fix the distal ends of the working channel tube 12 and the video sleeve 13 inside the insertion tube 110, simply and effectively locate the relative positions between the video sleeve 13 and the working channel tube 12, and also support the distal ends of the video sleeve 13 and the working channel tube 12, avoiding the video sleeve 13 and the working channel tube 12 from forming a cantilever support shape in the insertion tube 110. There will be no interference between the working channel tube 12 and the video sleeve 13, reducing the shaking of the video sleeve 13 and the working channel tube 12 during the swinging process of the endoscope 1, and increasing the working stability of the endoscope 1.

[0143] The specific structure of the fixing bracket 111 is not limited. In some embodiments, please refer to Figures 14 to 18 The fixed bracket 111 includes two separately designed mounting blocks 1111. The working channel tube 12 and the visual cannula 13 are aligned along a first direction. The two mounting blocks 1111 are positioned opposite each other along a second direction, defining a first hole 111a and a second hole 111b. The first and second directions are perpendicular. The two mounting blocks 1111 facilitate clamping the working channel tube 12 and the visual cannula 13 from both sides, ensuring effective contact between the fixed bracket 111 and the visual cannula 13, and improving the positioning reliability of the fixed bracket 111.

[0144] It should be noted that the first direction and the second direction can be any direction as long as the first direction and the second direction are perpendicular. Specifically, the first direction refers to the direction of the line connecting the center of the working channel tube 12 and the center of the video cannula 13.

[0145] During assembly, the working channel tube 12 , the video sleeve 13 and the mounting block 1111 can be glued together to form a preassembled whole, and then the preassembled whole can be placed in the insertion tube 110 .

[0146] For some examples, see Figures 14 to 18 The outer circumferential surface of the mounting block 1111 facing the inner wall of the insertion tube 110 has an arc surface, which fits the inner wall of the insertion tube 110. The insertion tube 110 supports the mounting block 1111, and the connection between the insertion tube 110 and the mounting block 1111 is tighter.

[0147] For example, the mounting block 1111 and the inner wall of the insertion tube 110 may be fixed together by gluing.

[0148] For some examples, see Figure 2 and Figure 15 The endoscope mounting assembly includes a cable 16 and a light emitter 17 for providing illumination for the field of view of the video tube 14 . One end of the cable 16 is electrically connected to the light emitter 17 , and the other end extends to the handle assembly 10 .

[0149] The light emitter 17 is disposed at the distal end of the insertion tube 110 , specifically, at the distal end surface of the fixing bracket 111 .

[0150] The cable 16 is used to transmit electrical energy to the light emitting device 17. The light required for the field of view of the video tube 14 is provided by the light emitting device 17. That is to say, in this embodiment, the video tube 14 does not need to integrate the light emitting device 17, which can save the installation size required for the light emitting device 17 and reduce the size requirement for the video tube 14.

[0151] The arrangement of the cables 16 is not limited.

[0152] For some examples, see Figures 14 to 18 The fixing bracket 111 is provided with a through hole 111c which passes through the fixing bracket 111 along the axial direction of the insertion tube 110. The cable 16 passes through the through hole 111c and is connected to the light emitter 17. A triangular area is formed at adjacent positions of the inner wall of the insertion tube 110, the outer wall of the working channel tube 12 and the outer wall of the video sleeve 13, and the cable 16 is arranged in the triangular area.

[0153] It should be noted that the cable 16 and the light emitter 17 will not extend into the video sleeve 13 and the working channel tube 12, and will not affect the operation of the video tube 14 and the surgical instrument. The cable 16 makes full use of the free space in the insertion tube 110, making the overall structure of the endoscope mounting assembly more compact.

[0154] The specific structure of the light emitter 17 is not limited.

[0155] For some examples, see Figure 17 The light emitter 17 includes a circuit board 171 and a light emitting chip 172 integrated on the circuit board 171 . The circuit board 171 is attached to the distal end surface of the fixing bracket 111 . The surfaces of the circuit board 171 and the light emitting chip 172 are covered with a potting layer 112 .

[0156] The type of the light emitting chip 172 is not limited, and any component that can emit light can be used as the light emitting chip 172, such as a light emitting diode. For example, the light emitting chip 172 is a light emitting diode, which has a small size, long service life, high brightness, and low heat.

[0157] There is no limit to the number of light-emitting chips 172, which can be one or more. For example, the light-emitting chips 172 can be evenly arranged around the video tube 14 to form the effect of a shadowless lamp, without causing a visual blind spot, and avoiding shadows caused by wrinkles on the inner wall of the organ, which may affect diagnosis or surgical operations.

[0158] The circuit board 171 can be a flexible circuit board 171 (the full name in English is Flexible Printed Circuit, abbreviated as FPC), the light-emitting chip 172 can be installed on the flexible circuit board 171 through surface assembly technology, and then the flexible circuit board 171 is installed on the distal surface of the fixed bracket 111, and the flexible circuit board 171 is connected to the cable 16 at the same time. The cable 16 can be connected to an external interface to realize power supply to the light-emitting device 17. For example, in some embodiments, the cable 16 is electrically connected to the data exchange interface 1a, and the light-emitting device 17 obtains electrical energy through the data exchange interface 1a to realize lighting. That is to say, the data exchange interface 1a can be an integrated interface of data and power supply of the endoscope 1, which is used to provide power access for electrical devices in the endoscope 1.

[0159] It is understandable that the light emitter 17 is insulated from the external space, for example, the light emitter 17 is insulated from the free space in the insertion tube 110 to prevent electric shock to a human or animal body.

[0160] The surfaces of the circuit board 171 and the light-emitting chip 172 are covered with a glue potting layer 112. The glue potting layer 112 can electrically insulate the circuit board 171 and its electronic components from the internal environment of the human body or animal body, thereby preventing the human body or animal body from electric shock; in addition, it also prevents the circuit board 171 and the light-emitting chip 172 from direct contact with the liquid in the human body or animal body, thereby preventing the life and performance of devices such as light-emitting components from being affected.

[0161] The specific structure of the glue-filling layer 112 is not limited. For example, the structure of the glue-filling layer 112 is: glue is poured into the area enclosed between the distal end surface of the fixing bracket 111 and the inner wall of the insertion tube 110 and the outer wall of the optical window 134, and the outer surface of the glue-filling layer 112 forms at least a part of the distal end surface of the insertion tube 110.

[0162] On the one hand, the glue layer 112 fixes the distal end surfaces of the insertion tube 110, the fixing bracket 111, the working channel tube 12, and the video sleeve 13 together. On the other hand, the glue layer 112 plays a filling role, filling the area between the inner wall of the insertion tube 110, the distal end surface of the fixing bracket 111, and the outer wall of the optical window 134. The outer surface of the glue layer 112 forms at least a portion of the distal end surface of the insertion tube 110, thereby making the distal end surface of the working channel tube 12, the distal end surface of the video sleeve 13, and the distal end surface of the insertion tube assembly 11 flush, and the ends of the video sleeve 13 and the working channel tube 12 will not protrude outside the insertion tube 110, preventing the distal sharp parts of the video sleeve 13 and the working channel tube 12 from touching or even injuring human or animal tissues.

[0163] The video sleeve 13 can be formed in any manner and can be an integral structure or a split structure. For example, see Figure 9 and Figure 10 The video sleeve 13 includes a sleeve and an optical window 134 . The distal end of the sleeve is open, and the optical window 134 closes the distal end of the sleeve. The glue layer 112 surrounds the circumference of the optical window 134 and the inner wall of the insertion tube 110 .

[0164] It is understandable that the setting of the optical window 134 makes the distal end of the video tube 13 in a transparent and closed state, so as to prevent the video tube 14 from contacting the internal tissue of the human body or animal body, thereby increasing the sterilization cost. In addition, the head end section 142a of the video tube 14 can move toward the main insertion section 142b under the action of an external force, and can generate a tendency to move in a direction away from the main insertion section 142b under the action of the rebound force of the elastic member 146, which also provides a drive for the axial alignment of the head end section 142a and the optical window 134. The circumference of the head end section 142a is The distal end of the video tube 14 is restricted by the circumferential inner surface of the video channel 130, so that the distal end of the video tube 14 can reliably abut against the inner surface of the optical window 134 and maintain a moderate fit with the inner surface of the optical window 134, so that the video tube 14 can reliably obtain images of the interior of the human or animal body. The video tube 14 can abut against the inner surface of the optical window and obtain images of the internal tissues of the human or animal body without relying on other auxiliary measures. The video tube 14 can be directly removed from the video channel 130 later without causing damage to the video tube 14 itself.

[0165] It is understandable that the glue layer 112 surrounds the circumference of the optical window 134 and the inner wall of the insertion tube 110 , that is, the glue layer 112 does not affect the observation field of view, nor does it hinder the video tube 14 from collecting images.

[0166] The glue layer 112 bonds and fixes the optical window 134, the fixing bracket 111, and the insertion tube 110 together to form a whole, thereby making the distal end of the insertion tube 110 more stable. In addition, the glue layer 112 can also prevent the optical window 134 from falling off and prevent the internal tissue fluid of the human body or animal body from penetrating into the tube sleeve and affecting the normal operation of the video tube 14.

[0167] The following, combined Figure 2 、 Figures 9 to 18 The assembly process of the insertion tube assembly 11 , the working channel tube 12 , and the video cannula 13 is briefly described.

[0168] The working channel tube 12 and the video sleeve 13 are respectively installed in the insertion tube 110, and the circumferential side walls of the two mounting blocks 1111 that are in contact with the inner wall of the insertion tube 110, the outer wall of the video sleeve 13, and the outer wall of the working channel tube 12 are coated with glue. Then, the two glue-coated mounting blocks 1111 are respectively installed in the insertion tube 110 to fix the working channel tube 12 and the video sleeve 13. The jig can assist in positioning the insertion tube 110, the working channel tube 12, and the video sleeve 13, and can also be used to determine the insertion depth of the fixing bracket 111. Specifically, the jig is set in the insertion tube 110. After the insertion depth of the fixing bracket 111 is confirmed, the jig can be removed from the end of the insertion tube 110 close to the handle assembly 10 after the glue is cured.

[0169] The light emitter 17 is arranged on the distal surface of the fixed bracket 111. Specifically, the light emitter 17 can be fixed to the distal surface of the fixed bracket 111 by gluing. The light emitter 17 is connected to the cable 16. The light emitter 17 itself and the connection between the light emitter 17 and the cable 16 are insulated from the outside world. The cable 16 extends from the through hole 111c on the fixed bracket 111 to the handle assembly 10. The distal end of the cable 16 can be fixed at the through hole 111c by gluing, thereby reducing the possibility of subsequent movement of the cable 16 and reducing the probability of fluid in the free space in the insertion tube 110 entering the fixed bracket 111. After the optical window 134 at the distal end of the video cannula 13 is assembled, glue can be poured into the area enclosed between the distal end surface of the fixing bracket 111, the inner side wall of the insertion tube 110, and the outer side wall of the optical window 134 to form a glue layer 112, thereby further fixing the light emitter 17 to the distal end surface of the fixing bracket 111, and further sealing and fixing the video cannula 13, the working channel tube 12, and the distal end of the insertion tube 110.

[0170] It is understandable that before glue pouring, a special jig is inserted into the distal end of the working channel tube 12 to close the outlet 12a to prevent the glue from entering the working channel tube 12. After the glue layer 112 is cured, the special jig can be removed.

[0171] The specific structure of the tube sleeve of the video tube 13 is not limited.

[0172] For some examples, see Figures 7 to 10 The sleeve includes a first video sleeve 131 and a second video sleeve 132 connected to each other along the length direction. The proximal end of the first video sleeve 131 forms a video plug-in port 13a on the handle assembly 10. The first video sleeve 131 has a first video channel 1311. The proximal end of the second video sleeve 132 extends into and is fixed in the first video channel 1311, and the other end penetrates into the insertion tube 110.

[0173] The video tube 14 passes through the video insertion port 13a, through the first video sleeve 131, and then through the second video sleeve 132 into the insertion tube 110. This means that the video tube 14 never comes into contact with the insertion tube 110. The cross-sectional area of ​​the first video channel 1311 gradually decreases from the proximal end to the distal end, providing a guide and positioning function, facilitating the insertion of the video tube 14 and better securing the second video sleeve 132 within the first video channel 1311.

[0174] The connection method between the insertion tube 110 and the handle assembly 10 is not limited, and can be directly connected or connected through other components. Figures 7 to 10 The endoscope mounting assembly includes a connector 18. The handle assembly 10 has a mounting opening 10a. The connector 18 is rotatably inserted into the mounting opening 10a. The proximal end of the insertion tube 110 is sealed and fixed in the connector 18. In this way, the connector 18 drives the insertion tube 110 to rotate to adjust the orientation of the insertion tube 110.

[0175] The specific structure of the joint portion 18 is not limited. In some embodiments, please refer to Figures 7 to 10 The joint portion 18 has a flow channel 181, and the end of the insertion tube 110 extends into the flow channel 181. The endoscope mounting assembly includes a liquid inlet tube 19, one end of the liquid inlet tube 19 is used to introduce external fluid, and the other end is connected to the inlet of the flow channel 181. That is, the flow channel 181 connects the end of the liquid inlet tube 19 and the free space at the proximal end of the insertion tube 110. The flow channel 181 and the space in the liquid inlet tube 19 jointly define at least a part of the liquid inlet channel.

[0176] The external fluid flows into the flow channel 181 through the liquid inlet tube 19, and then flows into the human body or animal body from the liquid outlet 110a through the free space of the insertion tube 110. In this way, the external fluid uses the unoccupied free space in the insertion tube 110 to flow into the human body or animal body, so that the observed part is filled with fluid and expanded. For example, the uterus is filled with water to facilitate better observation by the video tube 14. There is no need to set an additional liquid inlet pipe in the insertion tube 110, which reduces the requirements for the outer diameter of the insertion tube 110, and reduces the requirements for the aperture of the natural cavity or minimally invasive incision, thereby improving the diagnostic and treatment efficiency of the endoscope 1.

[0177] There is no limitation on the way of introducing external fluid into the liquid inlet pipe 19. For example, please refer to Figure 2 The liquid inlet pipe 19 is provided with a water inlet valve 23, which can start or stop the introduction of external fluid into the human body or animal body according to actual use needs.

[0178] For some examples, see Figure 2 、 Figure 7 The handle assembly 10 includes a handle 101 and a grip 102 arranged on the bottom side of the handle 101. The working channel tube 12 and the video sleeve 13 extend along the length of the handle 101. The mounting port 10a is arranged at one end of the handle 101 close to the insertion tube 110. At least a portion of the joint portion 18 is arranged on the inner side of the distal end of the handle 101. In this way, the joint portion 18 can easily drive the insertion tube 110 to rotate and adjust its orientation without scratching it.

[0179] One end of the liquid inlet pipe 19 away from the joint portion 18 extends along the handle 102 to the end of the handle 102 away from the grip 101, which can avoid interference to the operator during use.

[0180] For some examples, see Figure 2 、 Figure 7 The endoscope mounting assembly includes a turntable 20 disposed outside the handle assembly 10 , the turntable 20 is sleeved on the outer peripheral side of the insertion tube 110 , the turntable 20 is rotatably covered around the joint portion 18 and is detachably fixed to the joint portion 18 .

[0181] That is, the turntable 20 can drive the joint portion 18 to rotate, thereby driving the insertion tube 110 to rotate. During use, the operator can rotate the turntable 20 to drive the insertion tube 110 and components such as the video sleeve 13 and the video tube 14 arranged in the insertion tube 110 to rotate, which can meet the requirements of adjusting the orientation of the endoscope 1 and the surgical field of view.

[0182] The connection method between the joint portion 18 and the turntable 20 is not limited. For example, the joint portion 18 can be fixed to the turntable 20 by screws.

[0183] For some examples, see Figure 2 、 Figure 7A through hole 10b is provided at the proximal end of the handle assembly 10. The endoscope mounting assembly includes an adapter 21 and a drainage tube 22. The adapter 21 passes through the through hole 10b and is fixed to the proximal end of the handle assembly 10. The adapter 21 has a cavity therein. The cavity is respectively formed with a first opening 21a and a second opening 21b on the end surfaces of the two ends of the adapter 21. An adapter port 21c is provided on the side wall of the adapter 21. The adapter port 21c, the first opening 21a, and the second opening 21b are connected to each other. The proximal end of the working channel tube 12 extends into and is fixed to the first opening 21a. One end of the drainage tube 22 is used to draw out the fluid, and the other end is connected to the adapter port 21c.

[0184] It should be noted that the proximal end of the handle assembly 10 has a disc, and the through hole 10b is set on the disc. When the turntable 20 rotates, the joint part 18 rotates, which will drive the insertion tube 110 to rotate, and will also drive the disc to rotate. That is to say, when the turntable 20 rotates, the joint part 18, the adapter part 21, the insertion tube 110, the video sleeve 13, and the video tube 14 will all rotate to facilitate the orientation adjustment of the endoscope 1 and the surgical field of view.

[0185] It is understandable that in order to meet the needs of lesion observation or surgery, the diameter of the insertion tube should be as small as possible to reduce damage to the human or animal body.

[0186] In an embodiment of the present application, the drainage tube 22 is connected to the working channel tube 12 through the adapter 21. The working channel tube 12 can be used to draw fluid out of the human body or animal body without the need to set up a separate water outlet channel. It does not occupy the space of the insertion tube 110, reduces the requirements for the external diameter of the insertion tube 110, and has small requirements for the aperture of the natural cavity or minimally invasive incision, thereby improving the diagnostic and treatment efficiency of the endoscope 1.

[0187] When the insertion tube 110 is inserted through a natural orifice of the human or animal body, the smaller diameter of the insertion tube 110 can reduce the need for auxiliary expansion tools, effectively reducing damage to the human or animal body orifice. When the insertion tube 110 is inserted through a minimally invasive incision, the smaller diameter of the insertion tube 110 can effectively reduce the size of the stoma, reducing damage to the patient or animal and facilitating rapid healing.

[0188] During use, a negative pressure device can be connected to the end of the drainage tube 22 away from the working channel tube 12. When suction and drainage are required, the negative pressure device generates negative pressure, which in turn causes the working channel tube 12 to generate negative pressure, making it easier to suction the liquid that needs to be suctioned out of the human or animal body from the working channel tube 12.

[0189] It should be noted that when a surgical procedure is required, surgical instruments can enter the cavity of the adapter portion 21 through the second opening 21b and extend into the working channel tube 12 through the first opening 21a to perform the surgical procedure. During the surgical procedure, if suction and drainage are required simultaneously, a negative pressure device can be connected to the end of the drainage tube 22 away from the working channel tube 12. The negative pressure device generates negative pressure, allowing the internal fluid of the human or animal body to flow through the working channel tube 12, the first opening 21a, and the adapter port 21c to the drainage tube, thereby draining the internal fluid of the human or animal body to the outside of the body.

[0190] The arrangement of the drain pipe 22 is not limited. In some embodiments, please refer to Figure 7 The end of the drainage tube 22 away from the adapter 21 extends along the handle 102 to the end of the handle 102 away from the handle 101, which can avoid interference with the operator during use. The following describes the use of the endoscope 1 using the uterus as an example of an observation site.

[0191] Before the endoscope 1 is inserted into the uterus, the video tube 14 is inserted into the video sleeve 13 through the video insertion port 13a. The distal end of the video tube 14 abuts against the optical window 134. The head end section 142a of the video tube 14 is subjected to an external force from the inner surface of the optical window 134 in the direction toward the main insertion section 142b, thereby causing the head end section 142a to move axially toward the main insertion section 142b. The elastic member 146 is compressed and deformed, and a rebound force is generated, causing the head end section 142a to move in a direction away from the main insertion section 142b, and also providing a driving force for the axial alignment of the head end section 142a and the optical window 134. The circumferential direction of the head end section 142a is limited by the video channel 1 30 circumferential inner surface, so that the distal end of the video tube 14 and the distal end of the video sleeve 13 are reliably abutted together and maintain a moderate fit, the second clamping portion 151 on the end cover 15 is clamped with the first clamping portion 103 on the video tube 14, and the water inlet end of the liquid inlet pipe 19 is connected to the uterine distension device, and the uterine distension device provides uterine distension fluid, which flows into the uterus through the liquid inlet pipe 19, the flow channel 181, the free space in the insertion tube 110, and the liquid outlet 110a, so that the uterus is filled with fluid and expanded, the data exchange interface 1a is connected to the external device, the cable 16 is electrically connected to the data exchange interface 1a, and the light emitter 17 obtains the power required for lighting from the data exchange interface 1a through the cable 16.

[0192] The distal end of the endoscope 1 is inserted into the uterus, and the light emitter 17 provides lighting for the video tube 14. Uterine distention fluid is injected at a certain pressure and speed to fill the uterine cavity and provide a clear field of vision. The interior of the uterus is observed through the video tube 14. The photoelectric conversion component 144 converts the optical signal into an electrical signal, which is transmitted to the first electrical terminal 143, the second electrical terminal 133, and the data exchange interface 1a via the signal line 147. The external device converts the image electrical signal into a video image for display. If further surgical operations are required, the corresponding surgical instruments can be inserted into the uterus through the second opening 21b and the first opening 21a from the working channel tube 12 to perform surgical operations.

[0193] During surgery, if suction is required, a negative pressure device can be connected to perform suction. The surgical instruments can remain in the working channel tube 12, or the operator can perform suction while performing the procedure. If drainage is required, the drainage tube 22 is connected to a negative pressure device to generate negative pressure, allowing the fluid in the uterus to drain out of the drainage tube 22 through the working channel tube 12. After the surgery is complete, the surgical instruments are removed. Finally, the end cap 15 is removed, and the video tube 14 is pulled out of the video cannula 13. After simple disinfection and wiping, the tube assembly 11, working channel tube 12, video cannula 13, etc. can be discarded as medical waste.

[0194] In the description of this application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine different embodiments or examples described in this application and features of different embodiments or examples without contradiction.

[0195] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A video tube for plugging and unplugging with an endoscope mounting assembly, characterized in that: include: a core tube, wherein the core tube includes a main insertion section and a head end section along its length, wherein the proximal end of the head end section is sleeved with the distal end of the main insertion section, and the head end section and / or the main insertion section can generate axial movement toward each other under the action of an external force; an elastic member disposed in the core tube, the elastic member being compressible and restorable to drive the head end section to generate a tendency to axially move in a direction away from the main insertion section; The elastic member is a compression spring; The distal end of the head end section is integrated with an optical component and a photoelectric conversion component, and the photoelectric conversion component is used to convert the optical signal of the optical component into an electrical signal.

2. The video tube according to claim 1, wherein The head end section includes a first main body tube and a first sleeve tube, the first sleeve tube is fixed to the proximal end of the first main body tube as an independent component, the main insertion section includes a second main body tube and a second sleeve tube, the second sleeve tube is fixed to the distal end of the second main body tube as an independent component, and the head end section and the main insertion section are sleeved together through the first sleeve tube and the second sleeve tube.

3. The video tube according to claim 2, wherein: A first contraction section is formed at the distal end of the second main body tube, the first contraction section is inserted into the proximal end of the second sleeve tube, the first sleeve tube is passed through the distal end of the second sleeve tube, one end of the elastic member abuts against the end of the second main body tube, and the other end of the elastic member abuts against the end of the first sleeve tube.

4. The video tube according to claim 3, wherein: The second sleeve tube has an accommodating cavity therein, the first contraction section is accommodated in the accommodating cavity, the first sleeve tube includes a first sleeve section and a second sleeve section along the length direction, the outer diameter of the first sleeve section is larger than the outer diameter of the second sleeve section, the first sleeve section is inserted into the accommodating cavity, the distal side wall of the accommodating cavity protrudes inward to form a limiting wall, the proximal end of the first sleeve section abuts against the elastic member, and the distal end of the first sleeve section detachably abuts against the limiting wall.

5. The video tube according to claim 4, wherein: The circumferential outer side wall of the first sleeve section is tangent to the side wall of the accommodating cavity.

6. The video tube according to claim 2, wherein: A second contraction section is formed at the proximal end of the second sleeve tube, and the second contraction section is inserted into the distal end of the second main body tube. The first sleeve tube is sleeved on the distal end of the second sleeve tube. One end of the elastic member abuts against the distal end of the second main body tube, and the other end of the elastic member abuts against the proximal end of the first sleeve tube.

7. The video tube according to claim 2, wherein: The second sleeve tube is sleeved on the outside of the first sleeve tube, and the distal end of the second sleeve tube is axially spaced from the proximal end of the first main body tube to limit the axial movement stroke of the head end section; or the first sleeve tube is sleeved on the outside of the second sleeve tube, and the proximal end of the first sleeve tube is axially spaced from the distal end of the second main body tube to limit the axial movement stroke of the head end section.

8. The video tube according to claim 1, wherein: The video tube includes a signal line, which is arranged in the core tube and extends along the length direction of the core tube. The distal end of the signal line is connected to the photoelectric conversion component.

9. The video tube according to claim 8, wherein The video tube includes a disk portion, which is connected to the proximal end of the core tube. The disk portion includes a disk body and a protrusion protruding along the disk body toward the direction close to the head end section. The distal end of the protrusion is provided with a plurality of first electrical terminals, and the proximal end of the signal line is electrically connected to the first electrical terminals.

10. An endoscope, characterized in that: include: The endoscope mounting assembly and the video tube according to any one of claims 1 to 9; The endoscope mounting assembly comprises: handle assembly; an insertion tube, a proximal end of which is connected to the handle assembly; a video cannula, which is inserted into the insertion tube and has a video channel therein, and a closed optical window at the distal end of the video cannula; The core tube can be inserted into the video channel, and the distal end portion of the head end section can abut against the inner surface of the optical window.

11. The endoscope according to claim 10, wherein: The video sleeve is formed with a video plug-in port at the proximal end of the handle assembly, and the video tube is separably plugged and pulled into cooperation with the video channel through the video plug-in port.

12. The endoscope according to claim 11, wherein: The video cannula includes a first video cannula and a second video cannula connected to each other along the length direction. The proximal end of the video cannula forms the video plug-in port at the proximal end of the handle assembly. The first video cannula has a first video channel. The proximal end of the second video cannula extends into and is fixed in the first video channel, and the other end penetrates into the insertion tube. The cross-section of the first video channel gradually decreases from the proximal end to the distal end.

13. The endoscope according to claim 11, wherein The video tube has a plurality of second electrical terminals. The video tube includes a disk portion, which includes a disk body and a protrusion protruding from the disk body toward the video tube. A plurality of first electrical terminals are integrated on the side of the protrusion facing the video tube. The first electrical terminals are detachably conductively connected to the second electrical terminals. The endoscope mounting assembly includes a data exchange interface for interacting with external equipment. The data exchange interface is electrically connected to the second electrical terminals.

14. The endoscope according to claim 13, wherein: The proximal end of the video cannula passes through the proximal end of the handle assembly. The proximal end of the video cannula has a recess and a video plug-in port. The proximal end of the video cannula is recessed toward the direction close to the insertion tube to form a recess. The second electrical terminal is arranged at the distal end of the recess and passes through the groove wall of the recess along the plug-in and pull-out direction of the video tube. One end of the second electrical terminal is exposed in the recess, and the other end extends into the space in the handle assembly. The protrusion extends into and is fixed in the recess.

15. The endoscope according to claim 10, wherein The endoscope mounting assembly includes a cable and a light emitter for illuminating the field of view of the video tube. The light emitter is arranged at the distal end of the insertion tube. One end of the cable is electrically connected to the light emitter, and the other end extends to the handle assembly.

16. The endoscope according to claim 15, characterized in that The endoscope mounting assembly includes a data exchange interface for interacting with an external device, and the cable is electrically connected to the data exchange interface.

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