Medical endoscope

Abstract

The invention discloses a medical endoscope, belongs to the technical field of endoscopes, and can realize switching between a transparent cap and a non-transparent cap in a body. Comprising an endoscope insertion part, an endoscope operation part, a transparent cap and a transparent cap adjusting assembly, the endoscope operation part is connected to the endoscope insertion part, and the transparent cap is slidably arranged at the end, away from the endoscope operation part, of the endoscope insertion part in a sleeving mode; the transparent cap adjusting assembly comprises a connecting ring, a first air bag and a first air path channel, and the connecting ring is fixedly arranged at the end, away from the endoscope operation part, of the endoscope insertion part in a sleeving mode and located between the transparent cap and the endoscope operation part; one end of the first airbag is connected to the connecting ring, and the other end is fixedly connected with the transparent cap; the first air channel is communicated with the first air bag, and when the first air bag is inflated through the first air channel, the first air bag expands and pushes the transparent cap to extend out of the end, away from the endoscope operation part, of the endoscope insertion part; when the first air bag is deflated or deflated through the first air channel, the first air bag shrinks, and the transparent cap is reset.

Description

Technical Field

[0001] The invention relates to the technical field of endoscopes, in particular to a medical endoscope. Background Art

[0002] As an important diagnostic and treatment method in modern medicine, endoscopic technology plays an irreplaceable role in the diagnosis and treatment of diseases in the digestive system, respiratory system and other fields. With the continuous development of this technology, the research and development and application of related supporting equipment have also made significant progress. Among them, the transparent cap is the core auxiliary device at the front end of the endoscope. It plays multiple functions by being fixed on the top of the gastroenteroscope: it can protect the optical lens through physical support, improve the exposure of the surgical field through lumen expansion, and assist in completing a variety of complex operations. It can be called a "multi-functional manipulator" for endoscopic diagnosis and treatment.

[0003] In terms of clinical application, the transparent cap demonstrates unique therapeutic advantages: First, in the treatment of gastrointestinal bleeding, the positioning accuracy of tangential bleeding points or lesions in narrow cavities can be significantly improved through lumen expansion and anterior imaging functions, making hemostasis operations such as sclerosant injection more accurate; second, in the field of foreign body removal, its transparent cavity design can not only expand the observation field of hidden parts such as the esophageal entrance, but also store sharp foreign bodies in the protective cabin, effectively reducing the risk of secondary injury; third, the transparent cap-assisted sclerotherapy (CAES) derived in the field of hemorrhoid treatment uses a special straight transparent cap with inflation exposure technology to achieve precise sclerotherapy of the base of internal hemorrhoids, creating a new model of painless and minimally invasive treatment.

[0004] The transparent cap also widely serves the field of early cancer screening and treatment: in the diagnosis stage, it can assist in observing subtle mucosal lesions, and in the treatment stage, it provides a stable instrument platform for operations such as endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD). By enhancing the flexibility of endoscope manipulation, the operator can more calmly handle complex lesions.

[0005] However, the transparent caps of most endoscopes are currently designed to be disassembled and assembled outside the body, which means that medical staff must remove the endoscope from the patient's body during surgery in order to replace the transparent cap. This process not only increases the complexity of the surgery, but may also increase the risk of infection. At the same time, frequent plugging and unplugging operations will also prolong the operation time and affect the patient's recovery speed. Therefore, how to simplify the installation and removal process of the transparent cap without affecting the operation of the endoscope has become a difficult problem that needs to be solved urgently in the current technical field.

[0006] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0007] The present application provides a medical endoscope, which can realize switching between having a transparent cap and not having a transparent cap in vivo, thereby reducing the number of intubation times.

[0008] To achieve the above objectives, the present application discloses the following technical solutions:

[0009] A medical endoscope comprises an endoscope insertion portion and an endoscope operating portion, wherein the endoscope operating portion is connected to the endoscope insertion portion, and the medical endoscope further comprises a transparent cap and a transparent cap adjustment assembly, wherein the transparent cap is slidably sleeved on one end of the endoscope insertion portion away from the endoscope operating portion; the transparent cap adjustment assembly comprises: a connecting ring, a first air bag and a first air path channel, wherein the connecting ring is fixedly sleeved on one end of the endoscope insertion portion away from the endoscope operating portion, and the connecting ring is located between the transparent cap and the endoscope operating portion; one end of the first air bag is connected to the connecting ring, and the other end of the first air bag is fixedly connected to the transparent cap; the first air path channel is connected to the first air bag, and when the first air bag is inflated through the first air path channel, the first air bag expands and unfolds to push the transparent cap out of the end of the endoscope insertion portion away from the endoscope operating portion; when the first air bag is deflated or evacuated through the first air path channel, the first air bag contracts to reset the transparent cap.

[0010] In the embodiment of the present application, when the first airbag is inflated through the first air passage, the axial thrust generated by the expansion of the first airbag directly acts on the transparent cap, pushing it to slide distally along the endoscope insertion portion until it extends out, at which time the front end of the transparent cap exceeds the endoscope insertion portion to form an extended operation field of view; when the airbag is deflated or evacuated, the tension generated by the contraction of the airbag and the reverse friction force on the transparent cap act together to automatically reset the transparent cap to its initial position. In this way, while maintaining the hardness of the transparent cap itself, the telescopic adjustment of the transparent cap in the body is also achieved, thereby effectively avoiding the operation of pulling the endoscope out of the body as a whole to replace the transparent cap in the traditional technology, fundamentally eliminating the defects of loss of surgical field, increased risk of infection and prolonged operation time caused by repeated insertion and removal of the endoscope, and at the same time, the non-contact thrust transmission mechanism driven by the airbag ensures the stability and controllability of the transparent cap movement, so that the doctor can adjust the extended position of the transparent cap as needed without interrupting the surgical process.

[0011] In some possible embodiments, the transparent cap adjustment assembly further includes a sliding auxiliary sleeve, one end of which is fixedly connected to the connecting ring and is sleeved on one end of the endoscope insertion portion away from the endoscope operation portion, and the inner radius of the sliding auxiliary sleeve is greater than the outer radius of the transparent cap, and at least a portion of the transparent cap and the first airbag are located between the sliding auxiliary sleeve and the endoscope insertion portion. In this way, a continuous guide surface can be formed by the sliding auxiliary sleeve to provide radial limitation during the entire process of extending / resetting the transparent cap, effectively suppressing the lateral deviation that may be generated during the transmission of the airbag thrust, ensuring that the transparent cap moves along a strict axial direction, and avoiding image jitter caused by the shaking of the transparent cap.

[0012] In addition, an annular cavity of fixed width is formed between the inner wall of the sliding auxiliary sleeve and the outer wall of the endoscope insertion part, and the first airbag is confined to inflate and expand in this cavity. When the first airbag is inflated, its radial expansion is blocked by the rigidity of the inner wall of the sliding auxiliary sleeve, while the axial direction (i.e., the length direction of the endoscope insertion part) has expansion space due to the sliding of the transparent cap, forcing the deformation energy of the airbag to be concentrated and converted into mechanical work of axial extension. In this way, a self-feedback expansion direction correction is formed, avoiding the risk of compression of the inner wall of the cavity caused by radial expansion, and improving the accuracy and efficiency of transparent cap position control.

[0013] In some possible embodiments, a first ring body is provided at one end of the sliding auxiliary sleeve away from the connecting ring, and a second ring body is provided at one end of the transparent cap close to the connecting ring, the inner radius of the first ring body is smaller than the inner radius of the second ring body, and the medical endoscope further comprises a plurality of micro springs, each of which is connected between the first ring body and the second ring body, and the extension direction of the micro spring is consistent with the sliding direction of the transparent cap, and the second ring body is located between the first ring body and the first air bag. In this way, on the one hand, when the air bag is inflated and pushes the transparent cap to extend to the distal end, the second ring body fixed to the proximal end of the transparent cap moves toward the first ring body close to the distal end of the sliding auxiliary sleeve, compressing the micro spring group connecting the two. As the extension distance of the transparent cap increases, the compression amount of the micro spring gradually increases, and the reverse elastic force generated by the micro spring forms a real-time confrontation with the thrust of the air bag, so that the elastic force and the thrust reach an instantaneous balance, thereby locking the transparent cap in any position required for the operation;

[0014] On the other hand, when the airbag is deflated and the transparent cap is extended, the second ring returns to its initial position, and the microspring releases the stored elastic potential energy, which works together with the contraction force of the airbag to reset the transparent cap more quickly and accurately.

[0015] In some possible implementations, a plurality of microsprings are arranged at equal intervals in the circumferential direction of the first ring body, so that during the extension or reset of the transparent cap, the force transmission can be more uniform, avoiding the deviation caused by the local force imbalance.

[0016] In some possible embodiments, the transparent cap adjustment component also includes a color-changing component, the color-changing component includes a second airbag and a second air passage, the second airbag is arranged on the second ring body, the outer surface of the second airbag is black, the second air passage is connected to the second airbag, when the second airbag is inflated through the second air passage, the second airbag expands and unfolds to extend and wrap the circumferential outer surface of the transparent cap; when the second airbag is deflated or evacuated through the second air passage, the second airbag contracts and releases the wrapping of the circumferential outer surface of the transparent cap. In this way, the independently arranged second air passage allows the doctor to selectively inflate the second airbag to unfold and wrap the surface of the transparent cap when the transparent cap is extended, and the optical property adjustment can be completed without changing the physical position of the transparent cap. In this way, the interference of ambient light can be reduced, helping doctors to observe diseased blood vessels or mucosal structures more clearly.

[0017] In some possible implementations, the color-changing assembly further includes a first sleeve, which is fixedly connected to the second ring body and sleeved on the transparent cap, and the inner radius of the first sleeve is larger than the outer radius of the transparent cap, and the second airbag is located between the first sleeve and the transparent cap. In this way, when the transparent cap is driven to slide by the first airbag, the first sleeve moves synchronously to always maintain an axial alignment relationship with the transparent cap; and the gap design in which the inner diameter of the first sleeve is larger than the outer diameter of the transparent cap provides a preset deformation space for the second airbag, so that when the second airbag is inflated, its radial expansion is strictly limited by the inner wall of the first sleeve, forcing the airbag to extend axially along the surface of the transparent cap, ensuring that the black covering layer evenly wraps the outer surface of the transparent cap, and avoiding visual field distortion caused by local bulging.

[0018] In some possible implementations, the color-changing assembly further includes a plurality of elastic cords, which are disposed inside the second airbag. When the second airbag is fully expanded by being inflated through the second air passage, the plurality of elastic cords are connected between the two end surfaces of the second airbag that are disposed opposite to each other in the sliding direction of the transparent cap, and the plurality of elastic cords are arranged at equal intervals in the circumferential direction of the second ring body. In this way, the elastic cords can produce a superimposed effect with the resilience of the second airbag itself, so that the second airbag can be better reset.

[0019] In some possible implementations, the second airbag is a black product or the outer surface of the second airbag is coated with black paint.

[0020] In some possible implementations, a first control valve is provided on the first gas channel, and a second control valve is provided on the second gas channel, wherein the first control valve is used to control the on-off of the first gas channel; and the second control valve is used to control the on-off of the second gas channel. In this way, the two gas channels can be independently controlled.

[0021] In some possible implementations, the first control valve and the second control valve are both electromagnetic valves, and the medical endoscope further includes a controller, and the first control valve and the second control valve are both electrically connected to the controller. In this way, the reaction speed is faster, and the opening and closing of the gas path can be completed within milliseconds, which can make the inflation and deflation process of the airbag faster and more accurate, which not only improves the real-time performance of the transparent cap extension and retraction operation, but also facilitates the doctor to adjust the position of the transparent cap at any time during the operation, thereby improving the flexibility of the operation and the ability to deal with complex situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions. It should be understood that in all the drawings, the same reference numerals represent the same elements. In the drawings, for the sake of clarity and ease of understanding, the sizes of some features may be deformed.

[0023] Figure 1 A schematic structural diagram of a medical endoscope provided in some embodiments of the present application;

[0024] Figure 2 for Figure 1 The schematic diagram of the assembly between the transparent cap, the transparent cap adjustment component and the endoscope operating part in the medical endoscope shown;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure in which the first airbag is in an expanded and retracted state;

[0026] Figure 4 for Figure 3 A schematic diagram of the structure in which the second airbag is in an expanded and retracted state;

[0027] Figure 5 for Figure 1 Schematic diagram of the partial structure of the medical endoscope shown.

[0028] Description of reference numerals:

[0029] 10. Endoscope insertion part; 20. Endoscope operating part; 30. Transparent cap; 301. Second ring body; 40. Transparent cap adjustment assembly; 401. Connecting ring; 402. First air bag; 403. First air path channel; 404. Sliding auxiliary sleeve; 4041. First ring body; 4042. Sliding groove; 405. Micro spring; 406. Color changing assembly; 4061. Second air bag; 4062. Second air path channel; 4063. First sleeve body; 4064. Elastic rope; 50. First control valve; 60. Second control valve. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that, in the description of the present invention, terms such as "center", "upper", "lower", "horizontal", "inner", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0032] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] See also Figure 1 Combined with Figure 2 The embodiment of the present application provides a medical endoscope, including an endoscope insertion portion 10 and an endoscope operating portion 20, the endoscope operating portion 20 is connected to the endoscope insertion portion 10, the medical endoscope also includes a transparent cap 30 and a transparent cap adjustment assembly 40, the transparent cap 30 is slidably mounted on the end of the endoscope insertion portion 10 away from the endoscope operating portion 20; the transparent cap adjustment assembly 40 includes: a connecting ring 401, a first air bag 402 and a first air path channel 403, the connecting ring 401 is fixedly mounted on the end of the endoscope insertion portion 10 away from the endoscope operating portion 20, and the connecting ring 401 is located between the transparent cap 30 and the endoscope operating part 20; one end of the first airbag 402 is connected to the connecting ring 401, and the other end of the first airbag 402 is fixedly connected to the transparent cap 30; the first air path channel 403 is connected to the first airbag 402, and when the first airbag 402 is inflated through the first air path channel 403, the first airbag 402 expands and unfolds to push the transparent cap 30 out of the endoscope insertion part 10 away from the endoscope operating part 20; when the first airbag 402 is deflated or evacuated through the first air path channel 403, the first airbag 402 contracts to reset the transparent cap 30.

[0034] In this way, when the first airbag 402 is inflated through the first air passage 403, the axial thrust generated by the expansion of the first airbag 402 directly acts on the transparent cap 30, pushing it to slide distally along the endoscope insertion part 10 until it extends out, at which time the front end of the transparent cap 30 exceeds the endoscope insertion part 10 to form an extended operation field of view; when the airbag is deflated or evacuated, the tension generated by the contraction of the airbag and the reverse friction force on the transparent cap 30 act together to automatically reset the transparent cap 30 to its initial position. In this way, while maintaining the hardness of the transparent cap 30 itself, the telescopic adjustment of the transparent cap 30 in the body is also achieved, thereby effectively avoiding the operation of pulling the endoscope out of the body as a whole to replace the transparent cap 30 in the traditional technology, fundamentally eliminating the defects of loss of surgical field, increased infection risk and prolonged operation time caused by repeated insertion and removal of the endoscope, and at the same time, the non-contact thrust transmission mechanism driven by the airbag ensures the stability and controllability of the movement of the transparent cap 30, so that the doctor can adjust the extension position of the transparent cap 30 as needed without interrupting the surgical process.

[0035] See also Figure 2 Combined with Figure 3 In some embodiments, the transparent cap adjustment assembly 40 further includes a sliding auxiliary sleeve 404, one end of which is fixedly connected to the connecting ring 401 and is sleeved on the end of the endoscope insertion portion 10 away from the endoscope operation portion 20, and the inner radius of the sliding auxiliary sleeve 404 is greater than the outer radius of the transparent cap 30, and at least a portion of the transparent cap 30 and the first airbag 402 are located between the sliding auxiliary sleeve 404 and the endoscope insertion portion 10. In this way, a continuous guide surface can be formed by the sliding auxiliary sleeve 404, providing radial limitation during the entire extension / reset process of the transparent cap 30, effectively suppressing the lateral deviation that may be generated during the transmission of the airbag thrust, ensuring that the transparent cap 30 moves along a strict axial direction, and avoiding image jitter caused by the shaking of the transparent cap 30.

[0036] In addition, an annular cavity of fixed width is formed between the inner wall of the sliding auxiliary sleeve 404 and the outer wall of the endoscope insertion part 10, and the first airbag 402 is restricted to inflate and expand in this cavity. When the first airbag 402 is inflated, its radial expansion is blocked by the rigidity of the inner wall of the sliding auxiliary sleeve 404, while the axial direction (i.e., the length direction of the endoscope insertion part 10) has expansion space due to the sliding of the transparent cap 30, forcing the deformation energy of the airbag to be concentrated and converted into mechanical work of axial extension. In this way, a self-feedback expansion direction correction is formed, avoiding the risk of compression of the inner wall of the cavity caused by radial expansion, and improving the accuracy and efficiency of the position control of the transparent cap 30.

[0037] See also Figure 2In some embodiments, a first ring body 4041 is disposed at one end of the sliding auxiliary sleeve 404 away from the connecting ring 401, and a second ring body 301 is disposed at one end of the transparent cap 30 close to the connecting ring 401. The inner radius of the first ring body 4041 is smaller than the inner radius of the second ring body 301. The medical endoscope further comprises a plurality of micro springs 405, each of which is connected between the first ring body 4041 and the second ring body, and the extension direction of the micro spring 405 is consistent with the sliding direction of the transparent cap 30, and the second ring body 301 is located between the first ring body 4041 and the first air bag 402. Thus, on one hand, when the air bag is inflated and pushes the transparent cap 30 to extend to the distal end, the second ring body 301 fixed at the proximal end of the transparent cap 30 moves toward the first ring body 4041 close to the distal end of the sliding auxiliary sleeve 404, compressing the micro spring 405 group connecting the two. As the extension distance of the transparent cap 30 increases, the compression amount of the micro spring 405 gradually increases, and the reverse elastic force generated by the micro spring 405 forms a real-time confrontation with the thrust of the airbag, so that the elastic force and the thrust reach an instantaneous balance, thereby locking the transparent cap 30 at any position required for the operation;

[0038] On the other hand, when the airbag is deflated and the transparent cap 30 is extended, the second ring body 301 returns to its initial position, and the microspring 405 releases the stored elastic potential energy, which works together with the contraction force of the airbag to reset the transparent cap 30 more quickly and accurately.

[0039] In some embodiments, a plurality of micro springs 405 are arranged at equal intervals in the circumferential direction of the first ring body 4041. In this way, the force transmission can be more uniform during the extension or reset process of the transparent cap 30, avoiding the deviation caused by the local force imbalance.

[0040] See also Figure 3 Combined with Figure 4 In some embodiments, the transparent cap adjustment component 40 further includes a color changing component 406, the color changing component 406 includes a second air bag 4061 and a second air path channel 4062, the second air bag 4061 is arranged on the second ring body 301, and the outer surface of the second air bag 4061 is black. Exemplarily, the second air bag 4061 is a black product. Of course, the present application is not limited thereto. In other embodiments, the outer surface of the second air bag 4061 may also be coated with a black paint.

[0041] The second air passage 4062 is connected to the second airbag 4061. When the second airbag 4061 is inflated through the second air passage 4062, the second airbag 4061 expands and stretches out to wrap the circumferential outer surface of the transparent cap 30. When the second airbag 4061 is deflated or evacuated through the second air passage 4062, the second airbag 4061 contracts to release the wrapping of the circumferential outer surface of the transparent cap 30. Exemplarily, a sliding groove 4042 for avoiding the second air passage 4062 is provided on the sliding auxiliary sleeve 404, and the second air passage 4062 can slide in the sliding groove 4042 in a direction parallel to the axial direction of the sliding auxiliary sleeve 404.

[0042] In this way, the independently arranged second air passage 4062 allows the doctor to selectively inflate the second air bag 4061 to expand and wrap the surface of the transparent cap 30 when the transparent cap 30 is extended, and the optical property adjustment can be completed without changing the physical position of the transparent cap 30. In this way, the interference of ambient light can be reduced, helping the doctor to observe the diseased blood vessels or mucosal structures more clearly.

[0043] See also Figure 4 In some embodiments, the color-changing component 406 further includes a first sleeve 4063, which is fixedly connected to the second ring body 301 and sleeved on the transparent cap 30, and the inner radius of the first sleeve 4063 is larger than the outer radius of the transparent cap 30, and the second airbag 4061 is located between the first sleeve 4063 and the transparent cap 30. In this way, when the transparent cap 30 is driven to slide by the first airbag 402, the first sleeve 4063 moves synchronously to always maintain an axial alignment relationship with the transparent cap 30; and the gap design that the inner diameter of the first sleeve 4063 is larger than the outer diameter of the transparent cap 30 provides a preset deformation space for the second airbag 4061, so that when the second airbag 4061 is inflated, its radial expansion is strictly limited by the inner wall of the first sleeve, forcing the airbag to extend axially along the surface of the transparent cap 30, ensuring that the black covering layer evenly wraps the outer surface of the transparent cap 30, avoiding the visual field distortion caused by local bulging.

[0044] See also Figure 4 In some embodiments, the color-changing component 406 further includes a plurality of elastic cords 4064, which are disposed inside the second airbag 4061. When the second airbag 4061 is inflated and fully deployed through the second air passage 4062, the plurality of elastic cords 4064 are connected between the two end surfaces of the second airbag 4061 that are disposed opposite to each other in the sliding direction of the transparent cap 30, and the plurality of elastic cords 4064 are arranged at equal intervals in the circumferential direction of the second ring body 301. In this way, the elastic cords 4064 can produce a superimposed effect with the resilience of the second airbag 4061 itself, so that the second airbag 4061 can be better reset.

[0045] See also Figure 5In some embodiments, a first control valve 50 is provided on the first gas path channel 403, and a second control valve 60 is provided on the second gas path channel 4062. The first control valve 50 is used to control the on-off of the first gas path channel 403; the second control valve 60 is used to control the on-off of the second gas path channel 4062. In this way, the two gas paths can be controlled independently.

[0046] On the basis of the above embodiment, the first control valve 50 and the second control valve 60 are both solenoid valves, and the medical endoscope further includes a controller (not shown in the figure), and the first control valve 50 and the second control valve 60 are both electrically connected to the controller. In this way, the reaction speed is faster, and the opening and closing of the air circuit can be completed within milliseconds, which can make the inflation and deflation process of the airbag faster and more accurate, which not only improves the real-time performance of the telescopic operation of the transparent cap 30, but also facilitates the doctor to adjust the position of the transparent cap 30 at any time during the operation, thereby improving the flexibility of the operation and the ability to cope with complex situations. It is understandable that the controller can be built-in to the endoscope, or it can be set separately.

[0047] It is necessary to explain that if Figure 1 and Figure 2 As shown, the first air passage 403 and the second air passage 4062 of the present application can be implemented as independent pipes relative to the endoscope insertion part 10, which can be inserted into the body along with the endoscope insertion part 10, and the free ends of the first air passage 403 and the second air passage 4062 can still extend out of the body, so as to inflate and deflate the first airbag 402 and / or the second airbag 4061 in the body outside the body. Of course, the present application is not limited to this. In other embodiments, the first air passage 403 and the second air passage 4062 of the present application can also be implemented as the internal airway of the endoscope insertion part 10.

[0048] The present invention and its embodiments are described above, and such description is not restrictive. What is shown in the full text is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A medical endoscope, comprising an endoscope insertion portion and an endoscope operating portion, wherein the endoscope operating portion is connected to the endoscope insertion portion, characterized in that: Also includes: A transparent cap, the transparent cap being slidably mounted on an end of the endoscope insertion portion away from the endoscope operating portion; A transparent cap adjustment component, the transparent cap adjustment component comprising: A connecting ring, the connecting ring is fixedly sleeved on one end of the endoscope insertion portion away from the endoscope operating portion, and the connecting ring is located between the transparent cap and the endoscope operating portion; a first airbag, one end of which is connected to the connecting ring, and the other end of which is fixedly connected to the transparent cap; The first air path channel is connected to the first airbag. When the first airbag is inflated through the first air path channel, the first airbag expands and unfolds to push the transparent cap out of the end of the endoscope insertion part away from the endoscope operating part; when the first airbag is deflated or evacuated through the first air path channel, the first airbag contracts to reset the transparent cap.

2. The medical endoscope according to claim 1, characterized in that: The transparent cap adjustment assembly also includes a sliding auxiliary sleeve, one end of which is fixedly connected to the connecting ring and is sleeved on an end of the endoscope insertion portion away from the endoscope operating portion, and an inner radius of the sliding auxiliary sleeve is greater than an outer radius of the transparent cap, and at least a portion of the transparent cap and the first airbag are located between the sliding auxiliary sleeve and the endoscope insertion portion.

3. The medical endoscope according to claim 2, characterized in that: A first ring body is provided at one end of the sliding auxiliary sleeve away from the connecting ring, and a second ring body is provided at one end of the transparent cap close to the connecting ring. The inner radius of the first ring body is smaller than the inner radius of the second ring body. The medical endoscope also includes a plurality of micro springs, each of which is connected between the first ring body and the second ring body, and an extending direction of the micro spring is consistent with a sliding direction of the transparent cap. The second ring body is located between the first ring body and the first airbag.

4. The medical endoscope according to claim 3, characterized in that: The plurality of microsprings are arranged at equal intervals in the circumferential direction of the first ring body.

5. The medical endoscope according to claim 3 or 4, characterized in that: The transparent cap adjustment component also includes a color-changing component, which includes a second airbag and a second air path channel, wherein the second airbag is arranged on the second ring body, and the outer surface of the second airbag is black; the second air path channel is connected to the second airbag, and when the second airbag is inflated through the second air path channel, the second airbag expands and extends to wrap the circumferential outer surface of the transparent cap; when the second airbag is deflated or evacuated through the second air path channel, the second airbag contracts to release the wrapping of the circumferential outer surface of the transparent cap.

6. The medical endoscope according to claim 5, characterized in that: The color-changing assembly also includes a first sleeve, which is fixedly connected to the second ring body and sleeved on the transparent cap. The inner radius of the first sleeve is greater than the outer radius of the transparent cap, and the second airbag is located between the first sleeve and the transparent cap.

7. The medical endoscope according to claim 6, characterized in that: The color-changing component also includes a plurality of elastic ropes, which are arranged inside the second airbag. When the second airbag is inflated and fully expanded through the second air path, the plurality of elastic ropes are connected between the two end surfaces of the second airbag that are relatively arranged in the sliding direction of the transparent cap, and the plurality of elastic ropes are arranged at equal intervals in the circumferential direction of the second ring body.

8. The medical endoscope according to claim 6 or 7, characterized in that: The second airbag is a black product or the outer surface of the second airbag is coated with black paint.

9. The medical endoscope according to claim 5, characterized in that: The first gas path is provided with a first control valve, and the second gas path is provided with a second control valve. The first control valve is used to control the on-off of the first gas path; the second control valve is used to control the on-off of the second gas path.

10. The medical endoscope according to claim 9, characterized in that: The first control valve and the second control valve are both solenoid valves. The medical endoscope further includes a controller. The first control valve and the second control valve are both electrically connected to the controller.

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