Endoscope

Abstract

The invention provides an endoscope. The endoscope comprises a head end part, and the head end part comprises a head end seat shell, a forceps lifting device and an insulating cover. The head end seat shell is provided with an extending window and a cleaning window, and the extending window and the cleaning window are communicated to form a containing cavity; at least one part of the forceps lifting device is arranged in the accommodating cavity and is used for adjusting the extending direction of the medical instrument from the extending window; the insulating cover is detachably connected to the headstock housing to cover the cleaning window. When the endoscope provided by the invention is used, even if a medical instrument lapped on the forceps lifting device is high-frequency electric equipment, the insulating cover is arranged to seal the cleaning window, so that a patient is prevented from being burnt through the cleaning window after the forceps lifting device is conducted by high-frequency electricity. And after the endoscope is used, the insulating cover can be detached from the head end seat shell, so that the forceps lifting device can be cleaned through the cleaning window, namely, the cleaning difficulty and efficiency of the endoscope are not influenced by the arrangement of the insulating cover.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an endoscope. Background Art

[0002] As a non-invasive imaging method, endoscopic imaging can effectively extend human vision and is widely used in imaging diagnosis and image-guided treatment in many fields such as the digestive tract, cardiovascular and cerebrovascular system, urinary system, and respiratory system, greatly promoting the accuracy of disease examination.

[0003] The part of the endoscope that enters the human body is a slender insertion part, which is usually provided with an instrument channel. When the endoscope is used for diagnosis or treatment, the medical device can be passed through the instrument channel to reach the far end of the endoscope to assist in diagnosis or treatment. Most existing endoscopes are provided with a forceps lifter to adjust the direction in which the medical device extends out of the instrument channel. Considering the reliability of the forceps lifter, the forceps lifter is usually a metal conductor; and in some schemes, in order to improve the decontamination effect, a cleaning window is provided on the back of the forceps lifter, through which cleaning liquid and / or a cleaning brush can be introduced to clean the forceps lifter and the parts around the forceps lifter.

[0004] However, when the medical device in use is a high-frequency electrical device, improper operation may easily cause the high-frequency electricity to be connected to the lifting forceps and transmitted to the subject through the cleaning window, causing the risk of burning the patient. Summary of the invention

[0005] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, an endoscope is provided, and the endoscope includes a head end. The head end includes a head end base shell, and a projection window and a cleaning window are provided on the head end base shell, and the projection window and the cleaning window are connected to form a receiving cavity; a forceps lifter, at least a part of which is arranged in the receiving cavity and used to adjust the direction in which the medical device extends from the projection window; and an insulating cover, which is detachably connected to the head end base shell to cover the cleaning window. When the endoscope provided by the present invention is in use, even if the medical device resting on the forceps lifter is a high-frequency electrical device, since the insulating cover is provided to cover the cleaning window, it is avoided that the high-frequency electricity conducts through the forceps lifter and burns the patient through the cleaning window. Moreover, after such an endoscope is used, since the insulating cover is detachably connected to the head end base shell, the insulating cover can be removed from the head end base shell, and then the forceps lifter in the receiving cavity can be cleaned through the cleaning window, that is, the setting of the insulating cover does not affect the cleaning difficulty and efficiency of the endoscope.

[0006] Exemplarily, the insulating cover is connected to the head end base housing by a latch structure.

[0007] Exemplarily, the insulating cover includes a destructible structure, which is configured to be destructible under an external force to disable the latch structure.

[0008] Exemplarily, the insulating cover includes a main body and a connecting portion, the destructible structure is arranged on the main body, the latch structure includes a protrusion and a slot, one of the protrusion and the slot is arranged on the connecting portion, and the other of the protrusion and the slot is arranged on the head end seat shell.

[0009] Exemplarily, the thickness of the main body portion is not greater than the thickness of the connecting portion.

[0010] Exemplarily, a destructible structure is formed at a position of minimum wall thickness on the main body.

[0011] Exemplarily, a sealing ring is provided between the inner side wall of the head end seat shell that encloses the cleaning window and the connecting portion.

[0012] Exemplarily, the cleaning window extends along the length axis of the head end housing.

[0013] Exemplarily, the cleaning window is a long strip-shaped opening.

[0014] Exemplarily, the main body is in the shape of an elongated strip, and the connecting portion includes a first connecting portion and a second connecting portion, and the first connecting portion and the second connecting portion are respectively formed on opposite sides of the main body in the direction of the length axis.

[0015] Exemplarily, the distances from the destructible structure to the first connecting portion and the second connecting portion along the length axis direction are the same.

[0016] A series of simplified concepts are introduced in the summary of the invention, which will be further described in detail in the detailed description. The summary of the invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0017] The advantages and features of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0019] Figure 1 is a schematic diagram of an endoscope according to an exemplary embodiment of the present invention;

[0020] Figure 2 is a three-dimensional diagram of a head end portion according to an exemplary embodiment of the present invention, wherein a medical device is inserted into the device channel;

[0021] Figure 3 A perspective view of a head end portion according to an exemplary embodiment of the present invention;

[0022] Figure 4 for Figure 3 An exploded view of the head end shown, wherein the head end is in a state before the insulating cover is installed to the head end base housing;

[0023] Figure 5 for Figure 3 An exploded view of the head end portion from another perspective, wherein the head end portion is in a state before the insulating cover is installed to the head end base housing;

[0024] Figure 6 A front view of a head end portion according to an exemplary embodiment of the present invention;

[0025] Figure 7 for Figure 6 a cross-sectional view of the head end as shown; and

[0026] Figure 8 for Figure 7 A partial enlarged view of the head end is shown.

[0027] The above drawings include the following reference numerals:

[0028] 10. Endoscope; 100. Head end; 110. Head end seat shell; 111. Extension window; 112. Cleaning window; 113. Accommodating cavity; 114. Card slot; 120. Lifter; 130. Insulating cover; 131. Destructible structure; 132. Main body; 133. Connecting part; 1331. First connecting part; 1332. Second connecting part; 134. Protrusion; 140. Sealing ring; 150. Optical imaging component; 151. Illumination window; 152. Camera; 200. Insertion part; 210. Insertion tube; 220. Bending part; 230. Instrument channel; 300. Operating part; 400. Light guide hose; 500. Light guide part; 600. Electric cable; 700. Ultrasonic connector; 800. Medical device. DETAILED DESCRIPTION

[0029] In the following description, a large amount of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only exemplarily illustrates a preferred embodiment of the present invention, and the present invention can be implemented without one or more such details. In addition, in order to avoid confusion with the present invention, some technical features well known in the art are not described in detail.

[0030] According to one aspect of the present invention, an endoscope is provided. The endoscope is provided with an insulating cover at the cleaning window, which can effectively prevent the high-frequency electricity conducted on the forceps lifting device from burning the patient through the cleaning window. This will be described in detail later.

[0031] For the convenience of description, the distal end mentioned below refers to the end of the endoscope that is closer to the observed object when the operator uses the endoscope; the proximal end mentioned below refers to the end of the endoscope that is closer to the operator when the operator uses the endoscope.

[0032] Specifically, see Figure 1 An endoscope 10 provided by an embodiment of the present invention includes a head portion 100, an insertion portion 200, an operation portion 300, a light guide hose 400, a light guide portion 500, a cable 600 and an ultrasonic connector 700 which are connected in sequence.

[0033] Among them, the head end portion 100 can accommodate components indispensable for endoscope imaging, for example, the head end portion 100 can accommodate an optical imaging component 150, an ultrasonic probe, etc. Generally, the head end portion 100 is hard, for example, the head end portion 100 can include a hard head end base shell 110. The head end base shell 110 can protect the internal structure of the head end portion 100. The head end base shell 110 can be designed into various shapes as needed.

[0034] The insertion part 200 is connected to the head end 100, and includes: a bending part 220 that can swing in different directions and an insertion tube 210 with scales. The operation part 300 can be connected to the light guide part 500 through a light guide hose 400, and the operation part 300 can be connected between the insertion part 200 and the light guide part 500. Figure 2 The insertion portion 200 generally includes an instrument channel 230, one end of which extends to the operating portion 300 and the other end extends to the head portion 100. Thus, the medical device 800 inserted through the instrument channel 230 also has one end located at the operating portion 300 and the other end extending out at the head portion 100. The operator can operate the medical device 800 at the operating portion 300, so that the end of the medical device 800 extending out at the head portion 100 can assist in diagnosis or treatment.

[0035] The light guide part 500 can be connected to an external light source device and connected to an external endoscope host through the light source device. The irradiation light generated by the light source device can be transmitted to the illumination light window 151 of the head end 100 through the light guide medium passing through the light guide hose 400, the operating part 300 and the insertion part 200, and then emitted to illuminate the subject; after the camera 152 of the head end 100 collects the light returned from the subject, it generates an optical image signal of the subject and transmits it to the light guide part 500, which is further transmitted to the external endoscope host for image processing, thereby obtaining an optical image of the subject. In addition, the light guide part 500 can also be connected to the ultrasound connector 700 through the cable 600. The setting of the ultrasound connector 700 enables the endoscope to realize the function of ultrasonic detection, and the endoscope can transmit the ultrasound signal to the external ultrasound host through the ultrasound connector 700, and the ultrasound host can process the ultrasound signal to obtain an ultrasound image of the subject.

[0036] It is worth noting that Figure 1 The illustrated embodiment is described by taking an ultrasonic endoscope as an example. In other embodiments not shown, the endoscope provided by the present application may also have various other applications. For example, the endoscope provided by the present application may be applied to an electronic duodenoscope. It is understandable that when applied to a non-ultrasonic endoscope, components for realizing the ultrasonic detection function, such as the cable 600, the ultrasonic connector 700, and the ultrasonic probe, may be omitted.

[0037] The head portion 100 of the endoscope 10 provided by the present invention will be described in detail below.

[0038] See also Figure 7 , the head end portion 100 may include a head end base housing 110 and a forceps lifter 120. The head end base housing 110 may be provided with an extension window 111 and a cleaning window 112, and the extension window 111 and the cleaning window 112 may be connected to form a receiving chamber 113, at least a portion of the forceps lifter 120 may be arranged in the receiving chamber 113, and the forceps lifter 120 may be connected to the outside through the extension window 111. The forceps lifter 120 can usually rotate around its own rotating part, and the rotating part is also arranged in the receiving chamber 113. The operator can control the rotation of the forceps lifter 120 at the operating part 300. When a medical device 800 is inserted into the instrument channel 230, the part of the medical device 800 extending from the head end portion 100 will rest on the forceps lifter 120. At this time, by controlling the rotation of the forceps lifter 120, the direction in which the medical device 800 extends from the extension window 111 can be adjusted to meet the needs of diagnosis or treatment in different situations. During use, the forceps lifter 120 may have a portion extending from the extension window 111 or may be entirely located in the accommodating cavity 113. When the endoscope is finished being used, the forceps lifter 120 may be cleaned through the cleaning window 112.

[0039] In order to improve the reliability of the forceps lifter 120, the forceps lifter 120 is usually made of metal material. In this way, when the medical device 800 used is a high-frequency electrical device, in the case of improper operation, the high-frequency electricity is easy to be connected to the forceps lifter 120, and then burn the patient through the cleaning window. Therefore, the head end 100 of the present invention can also include an insulating cover 130, and the insulating cover 130 can be detachably connected to the head end base housing 110 to cover the cleaning window 112. The insulating cover 130 can have a shape that is compatible with the cleaning window 112, for example, see Figure 4 , the cleaning window 112 is a long strip-shaped opening, and the insulating cover 130 is a shape that matches the cleaning window 112. In other embodiments not shown, the insulating cover 130 may also have a shape different from that of the cleaning window 112. For example, the insulating cover 130 may have a blocking portion that blocks the cleaning window 112 and a cover portion of any shape. The specific form of the insulating cover 130 can be designed according to actual needs and will not be described in detail here. The insulating cover 130 can be detachably connected to the head end base housing 110 in various forms such as snap-fit ​​or threaded connection. See Figure 5 , the insulating cover 130 may be connected to the head end seat housing 110 by snap-fitting. In other embodiments not shown, the insulating cover 130 may be connected to the head end seat housing 110 by threads, for example, the insulating cover 130 may include a cover portion and a blocking portion blocking the cleaning window 112, the cover portion may be provided with a threaded hole, after the blocking portion is inserted into the cleaning window 112, a threaded hole may also be provided at a position corresponding to the cover portion on the head end seat housing 110, and screws may be connected to the two threaded holes to achieve the connection of the insulating cover 130 to the head end seat housing 110, and when the insulating cover 130 needs to be removed, only the screws need to be removed to release the connection between the insulating cover 130 and the head end seat housing 110. When such an endoscope is in use, due to the provision of the insulating cover 130, high-frequency electricity cannot pass through the insulating cover 130, and it is also possible to prevent high-frequency electricity from burning the patient at the cleaning window 112. When use is finished, the connection between the insulating cover 130 and the head end base housing 110 is released, and then the forceps lifter 120 can be cleaned through the cleaning window 112 .

[0040] When the endoscope provided by the present invention is in use, even if the medical device 800 resting on the forceps lifter 120 is a high-frequency electrical device, since the insulating cover 130 is provided to cover the cleaning window 112, it is prevented that the high-frequency electricity conducts through the forceps lifter 120 and burns the patient through the cleaning window 112. Moreover, after such an endoscope is used, since the insulating cover 130 is detachably connected to the head end base housing 110, the insulating cover 130 can be removed from the head end base housing 110, and then the forceps lifter 120 in the accommodating cavity 113 can be cleaned through the cleaning window 112, that is, the provision of the insulating cover 130 does not affect the cleaning difficulty and efficiency of the endoscope.

[0041] In one embodiment of the present invention, see Figure 5 and Figure 8 , the insulating cover 130 can be connected to the head end seat shell 110 through a latch structure. The latch structure can be in the form of a protrusion 134 cooperating with a latch slot 114. When the insulating cover 130 is connected to the head end seat shell 110, the protrusion 134 is inserted into the latch slot 114; when the insulating cover 130 is removed from the head end seat shell 110, the protrusion 134 is removed from the latch slot 114. In embodiments not shown, the latch structure can also be in various other forms, which are not described here. When such an endoscope is in use, it is more convenient for the insulating cover 130 to be connected to the head end seat shell 110 and to be removed from the head end seat shell 110, the user experience is good, the structure is simpler, and it is easy to implement.

[0042] Specifically, see Figure 7 and Figure 8 , the latch structure may include a protrusion 134 and a slot 114, the protrusion 134 may be arranged on the insulating cover 130, and the slot 114 may be arranged on the head end base housing 110. When the insulating cover 130 is connected to the head end base housing 110, the protrusion 134 is inserted into the slot 114. The protrusion 134 and the slot 114 may have matching shapes. For example, in the illustrated embodiment, the protrusion 134 has a trapezoidal cross-section, and the slot 114 is a trapezoidal cross-section groove, so that it can be easily installed and has high stability. In other embodiments, the protrusion 134 may also be a rectangular cross-section, and correspondingly, the slot 114 may be a rectangular cross-section groove. Such a latch structure has a simple structure and is easy to implement. Of course, in an embodiment not shown, the protrusion 134 may also be arranged on the head end base housing 110, and the slot 114 may also be arranged on the insulating cover 130. The specific positions of the protrusion 134 and the slot 114 are not limited here.

[0043] See also Figure 5 , Figure 7 and Figure 8The insulating cover 130 may include a destructible structure 131, which may be configured to be destructible under external force to render the latch structure ineffective. In the illustrated embodiment, the destructible structure 131 is in the form of a groove with a thin wall thickness. Under external force, the groove of the destructible structure 131 may break, thereby breaking the insulating cover 130 into two parts on both sides of the destructible structure 131, and the two parts may be drawn out of the head end base housing 110 respectively. In an embodiment not shown, protrusions 134 are provided on both sides of the insulating cover 130 along the length axis direction, and a destructible structure 131 can be provided on the protrusion 134 on one side. A card slot 114 corresponding to the protrusion 134 is provided on the head end seat shell 110. The protrusion 134 is inserted into the card slot 114 to form a latch structure, and the insulating cover 130 can be installed on the cleaning window 112. When the insulating cover 130 needs to be removed, the insulating cover 130 can be pulled out from the cleaning window 112. Under the action of external force, the destructible structure 131 will break on the protrusion 134 during this process, and the strength of the latch structure is not sufficient to limit the insulating cover 130, thereby completing the removal of the insulating cover 130.

[0044] In the embodiment of the present invention, by providing a destructible structure 131 on the insulating cover 130, the insulating cover 130 can be removed by destroying the insulating cover 130, so that a more secure connection method can be used when the insulating cover 130 is connected to the head end seat shell 110. For example, in the illustrated embodiment, the insulating cover 130 can have good plasticity, and the protrusion 134 can be inserted into the card slot 114 by interference fit. Such an insulating cover 130 is more reliable when connected to the head end seat shell 110 through the snap structure and is not easy to fall off. After use, an external force is applied to the destructible structure 131 to destroy it, so that the snap structure can be invalidated, thereby releasing the connection between the insulating cover 130 and the head end seat shell 110, so that the insulating cover 130 can be removed from the cleaning window 112, and then the lifting clamp 120 can be cleaned from the cleaning window 112. Such an insulating cover 130 is actually disposable. When the endoscope is needed next time, such an insulating cover 130 can be installed on the cleaning window 112 in advance. Since it is disposable, such an insulating cover 130 is cleaner and more hygienic, which is in line with the medical use environment of the endoscope.

[0045] The insulating cover 130 may include a body portion 132 and a connecting portion 133, and the destructible structure 131 may be provided on the body portion 132. When the destructible structure 131 provided on the connecting portion 133 is destroyed, a portion of the insulating cover 130 may still remain in the accommodating cavity 113 after the insulating cover 130 is disassembled. When the destructible structure 131 provided on the body portion 132 is destroyed, no residual portion will remain in the accommodating cavity 113 when the insulating cover 130 is disassembled, which can make it more convenient to disassemble the insulating cover 130.

[0046] Further, the thickness of the main body 132 may not be greater than the thickness of the connecting portion 133. The connecting portion 133 has a certain thickness, so that the plasticity of the connecting portion 133 is better, which can ensure that the insulating cover 130 is more reliable when connected to the head end seat housing 110 and is not easy to fall off. The thickness of the main body 132 can be smaller, so that when an external force acts on the destructible structure 131, the destructible structure 131 can be destroyed without a large external force, and then the insulating cover 130 can be disassembled.

[0047] The destructible structure 131 may be formed at the location of the minimum wall thickness on the body portion 132. Figure 8 The destructible structure 131 on the body 132 can be thinner than other parts of the body 132, so that it is easy to destroy the destructible structure 131 by external force, and the destructible structure 131 only occupies a small part of the body 132, and the thin wall thickness will not affect the sealing effect of the insulating cover 130 on the cleaning window 112. In addition, the destructible structure 131 can form a sharp contrast with other parts of the body 132, and when the user needs to remove the insulating cover 130, he can find the position of the destructible structure 131 more quickly and then apply external force to it to destroy it.

[0048] In one embodiment of the present invention, see Figure 7 and Figure 8 , the head end seat shell 110 may have an inner side wall at the position of the cleaning window 112 (that is, the inner side wall of the head end seat shell 110 encloses the cleaning window 112), and a sealing ring 140 may be provided between the inner side wall and the connecting portion 133. A sealing ring installation groove may be provided at a corresponding position on the connecting portion 133, and the sealing ring 140 may be provided in the sealing ring installation groove and clamped between the inner side wall of the head end seat shell 110 and the connecting portion 133. The sealing ring 140 may be in the form of silicone rubber encapsulation or in various other forms. The sealing ring 140 may be made of insulating material. The provision of the sealing ring 140 may further enhance the blocking effect of the insulating cover 130 on the cleaning window 112, and further enhance the blocking and insulating effect of the accommodating cavity 113 at the cleaning window 112.

[0049] In one embodiment of the present invention, see Figure 4 and Figure 5, the cleaning window 112 can be a long strip opening extending along the longitudinal axis direction of the head end housing 110 (PP direction in the figure). Many other components are usually arranged in the head end 100. For example, various components such as optical fibers or cables can be arranged in the head end 100. Such a cleaning window 112 can leave more space for other components in the head end 100, which can make the structure in the head end 100 more compact. In addition, in order to adapt to the shape of the long strip cleaning window 112, the insulating cover 130 can also be in a long strip shape, and the long strip insulating cover 130 has good plasticity and is easy to deform in the longitudinal axis direction of the head end housing 110, which is convenient for fixing the latch structure, and it is more convenient to install the insulating cover 130 to the cleaning window 112.

[0050] See also Figure 7 and Figure 8 The main body 132 may be in the shape of an elongated strip, and the main body 132 may have a shape that matches the cleaning window 112. The connecting portion 133 may include a first connecting portion 1331 and a second connecting portion 1332, and the first connecting portion 1331 and the second connecting portion 1332 may be formed on opposite sides of the main body 132 in the longitudinal axis direction. The connecting portion 133 includes the first connecting portion 1331 and the second connecting portion 1332. The latching structure between the insulating cover 130 and the head end base housing 110 is more stable, and the insulating cover 130 is more reliable when covering the cleaning window 112. Moreover, the overall device structure is simple and easy to implement. Furthermore, since the main body 132 has better deformation ability in the length axis direction, the first connection part 1331 and the second connection part 1332 are formed on the opposite sides of the main body 132 in the length axis direction. The protrusions 134 respectively arranged on the first connection part 1331 and the second connection part 1332 can be clamped in the corresponding clamping groove 114 by means of the deformation of the main body 132, thereby improving the installation convenience.

[0051] Further, in this embodiment, the destructible structure 131 can be specifically a groove provided in the main body 132 and extending in a direction perpendicular to the longitudinal axis direction PP, and the distances from the groove to the first connection part 1331 and the second connection part 1332 along the longitudinal axis direction PP are the same. In this way, when a component with a sharp tip, such as surgical scissors, is used to apply forces orthogonal to the groove in its extending direction and the longitudinal axis direction PP, the force arm is relatively long because the groove is located at a position approximately in the center of the main body 132, and therefore, the force required for destruction can be reduced, thereby improving the convenience of disassembly.

[0052] In one embodiment of the present invention, see Figure 6, an optical imaging assembly 150 may also be provided on the head end housing 110 on the same side of the extension window 111. The optical imaging assembly 150 may include an illumination window 151 and a camera 152, etc., and the optical imaging assembly 150 may be used for optical imaging. When such an endoscope is in use, in order to clarify the position of the instrument during treatment, the extension window 111 and the optical imaging assembly 150 are located on the same side of the head end housing 110. When the operator operates the medical device 800 and then controls the part of the medical device 800 extending from the extension window 111 to assist in diagnosis or treatment, the brightness provided by the illumination window 151 may be used, and the operator may use the real-time imaging of the optical imaging assembly 150 to observe the position of the distal end of the medical device 800, which may improve the effect of diagnosis or treatment. In some embodiments, the extension window 111 and the cleaning window 112 may be symmetrically arranged on both sides of the head end housing 110 about the length axis of the head end housing 110. In this way, the accommodating chamber 113 between the extension window 111 and the cleaning window 112 can pass through the head end seat shell 110. When the forceps lifter 120 is cleaned through the cleaning window 112, the structure of the accommodating chamber 113 is simpler, without too many bends or blocking parts, and the cleaning brush can be better inserted to brush the bottom of the forceps lifter, especially for the blind spots of conventional disinfection, such as the position of the rotating part, so that the cleaning effect is better. In addition, since the extension window 111 and the optical imaging assembly 150 are usually located on the same side of the head end seat shell 110, in this embodiment, the position of the cleaning window 112 becomes a blind spot of vision. When burns occur, it is difficult for the operator to identify and deal with them in time. Therefore, it is particularly necessary to provide an insulating cover 130 at the cleaning window 112.

[0053] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contour of each component itself.

[0054] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0056] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0057] The present invention has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An endoscope, comprising a tip end, characterized in that: The head end comprises: A head end seat shell, wherein a projection window and a cleaning window are provided on the head end seat shell, and the projection window and the cleaning window are connected to form a receiving cavity; a forceps lifter, at least a portion of which is disposed in the accommodating cavity and is used to adjust the direction in which the medical device extends from the extension window; and An insulating cover is detachably connected to the head end base housing to cover the cleaning window.

2. The endoscope according to claim 1, characterized in that The insulating cover is connected to the head end base housing through a latch structure.

3. The endoscope according to claim 2, characterized in that The insulating cover includes a destructible structure, and the destructible structure is configured to be destructible under an external force to disable the latch structure.

4. The endoscope according to claim 3, characterized in that The insulating cover includes a main body and a connecting part, the destructible structure is arranged on the main body, the latch structure includes a protrusion and a slot, one of the protrusion and the slot is arranged on the connecting part, and the other of the protrusion and the slot is arranged on the head end seat shell.

5. The endoscope according to claim 4, characterized in that The thickness of the main body portion is not greater than the thickness of the connecting portion.

6. The endoscope according to claim 4, characterized in that The destructible structure is formed at the position of the minimum wall thickness on the main body.

7. The endoscope according to claim 4, characterized in that: A sealing ring is arranged between the inner side wall of the head end seat shell that encloses the cleaning window and the connecting portion.

8. The endoscope according to claim 4, characterized in that The cleaning window extends along the length axis direction of the head end seat shell.

9. The endoscope according to claim 4, characterized in that: The cleaning window is a long strip opening.

10. The endoscope according to claim 8 or 9, characterized in that: The main body is in an elongated strip shape, and the connecting portion includes a first connecting portion and a second connecting portion, wherein the first connecting portion and the second connecting portion are respectively formed on two opposite sides of the main body in the longitudinal axis direction.

11. The endoscope according to claim 10, characterized in that: The destructible structure is at the same distance from the first connecting portion and the second connecting portion along the length axis.

Images