CN220327433U - Endoscope with a lens - Google Patents

Abstract

The utility model provides an endoscope. The endoscope includes a head end portion including a head end seat housing, a forceps lifter, and an insulating cover. The head end seat shell is provided with an extending window and a cleaning window, and a containing cavity is formed between the extending window and the cleaning window in a communicating manner; at least one part of the forceps lifting device is arranged in the accommodating cavity and used for adjusting the extending direction of the medical instrument from the extending window; an insulating cover is detachably connected to the head end seat housing to cover the cleaning window. When the endoscope is used, even if the medical instrument which is put on the forceps lifter is high-frequency electric equipment, the cleaning window is covered by the insulating cover, so that the patient is prevented from being burnt through the cleaning window after the high-frequency electric conduction of the forceps lifter. After the endoscope is used, the insulating cover can be detached from the head end seat shell, and the forceps lifter can be cleaned through the cleaning window, that is, the cleaning difficulty and efficiency of the endoscope are not affected by the arrangement of the insulating cover.

Description

Endoscope with a lens

Technical Field

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

Background

The endoscopic imaging is used as a noninvasive imaging method, can effectively prolong the human sight, is widely applied to image diagnosis and image-guided treatment in various fields such as digestive tracts, cardiovascular and cerebrovascular systems, urinary systems, respiratory systems and the like, and greatly promotes the examination precision of diseases.

The part of the endoscope entering the human body is an elongated insertion part, and an instrument channel is usually arranged in the insertion part, so that when the endoscope is used for diagnosis or treatment, a medical instrument can pass through the instrument channel to reach the distal end of the endoscope to assist the diagnosis or treatment. Most of the existing endoscopes are provided with forceps lifters for adjusting the direction of the medical instrument extending out of the instrument channel, and the forceps lifters are usually metal conductors in consideration of reliability of the forceps lifters; in some schemes, in order to promote the decontamination effect, a cleaning window is arranged on the back of the forceps lifter, and cleaning liquid can be introduced into the cleaning window and/or extend into the cleaning brush to clean the forceps lifter and all parts around the forceps lifter.

However, when the medical apparatus is used as a high-frequency electric device, if the operation is improper, the high-frequency electric device is easily conducted with the forceps lifter and is conducted to the subject through the cleaning window, so that the risk of burning the patient is caused.

Disclosure of Invention

In order to at least partially solve the problems of the prior art, according to one aspect of the present utility model, an endoscope is provided, the endoscope comprising a head end. The head end part comprises a head end seat shell, an extending window and a cleaning window are arranged on the head end seat shell, and a containing cavity is formed between the extending window and the cleaning window in a communicating manner; the forceps lifting device is at least partially arranged in the accommodating cavity and used for adjusting the extending direction of the medical instrument from the extending window; and an insulating cover detachably connected to the head end seat housing to cover the cleaning window. When the endoscope is used, even if the medical instrument which is put on the forceps lifter is high-frequency electric equipment, the cleaning window is covered by the insulating cover, so that the patient is prevented from being burnt through the cleaning window after the high-frequency electric conduction of the forceps lifter. After the endoscope is used, the insulating cover is detachably connected to the head end seat shell, so that the insulating cover can be detached from the head end seat shell, and then the pliers lifter in the accommodating cavity can be cleaned through the cleaning window, that is, the cleaning difficulty and the efficiency of the endoscope are not affected by the arrangement of the insulating cover.

Illustratively, the insulating cover is connected to the head end seat housing by a detent structure.

Illustratively, the insulating cover includes a breakable structure configured to be breakable under an external force to disable the detent structure.

Illustratively, the insulating cover includes a body portion and a connecting portion, the breakable structure is disposed on the body portion, the detent structure includes a protrusion and a detent, one of the protrusion and the detent is disposed on the connecting portion, and the other of the protrusion and the detent is disposed on the head end seat housing.

Illustratively, the thickness of the body portion is no greater than the thickness of the connecting portion.

Illustratively, the body portion is formed with a breakable structure at a location of minimum wall thickness.

Illustratively, a sealing ring is disposed between the inner sidewall and the connecting portion of the head end seat housing that enclose to form the cleaning window.

Illustratively, the wash window extends along a length axis of the head end seat housing.

Illustratively, the cleaning window is an elongated opening.

The body portion is in an elongated shape, and the connecting portion includes a first connecting portion and a second connecting portion formed on opposite sides of the body portion in a length axis direction, respectively.

Illustratively, the distance of the breakable structure from the first connection and the second connection is the same along the length axis.

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

Advantages and features of the utility model are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings are included to provide an understanding of the utility model and are incorporated in and constitute a part of this specification. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,

FIG. 1 is a schematic view of an endoscope according to an exemplary embodiment of the present utility model;

FIG. 2 is a perspective view of a head end with a medical instrument threaded through an instrument channel according to an exemplary embodiment of the present utility model;

FIG. 3 is a perspective view of a head end according to an exemplary embodiment of the present utility model;

FIG. 4 is an exploded view of the head end shown in FIG. 3, wherein the head end is in a state prior to the insulative cap being mounted to the head end seat housing;

FIG. 5 is an exploded view of the head end shown in FIG. 3, in an alternate view, with the head end in a state prior to the insulative cap being mounted to the head mount housing;

FIG. 6 is a front view of a head end according to an exemplary embodiment of the present utility model;

FIG. 7 is a cross-sectional view of the head end shown in FIG. 6; and

fig. 8 is a partial enlarged view of the head end shown in fig. 7.

Wherein the above figures include the following reference numerals:

10. an endoscope; 100. a head end portion; 110. a head end seat housing; 111. a protruding window; 112. cleaning the window; 113. a receiving chamber; 114. a clamping groove; 120. a clamp lifter; 130. an insulating cover; 131. a breakable structure; 132. a body portion; 133. a connection part; 1331. a first connection portion; 1332. a second connecting portion; 134. a protrusion; 140. a seal ring; 150. an optical imaging assembly; 151. an illumination light window; 152. a camera; 200. an insertion section; 210. an insertion tube; 220. a bending portion; 230. an instrument channel; 300. an operation unit; 400. a light guide hose; 500. a light guide section; 600. a cable; 700. an ultrasonic connector; 800. a medical device.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the utility model. However, it will be understood by those skilled in the art that the following description illustrates preferred embodiments of the utility model by way of example only and that the utility model may be practiced without one or more of these details. Furthermore, some technical features that are known in the art have not been described in detail in order to avoid obscuring the utility model.

According to one aspect of the present utility model, an endoscope is provided. The endoscope can effectively prevent the high-frequency electricity conducted on the forceps lifter from burning a patient through the cleaning window by arranging the insulating cover at the cleaning window. This will be described in detail later.

For convenience of description, the distal end referred to hereinafter refers to the end of the endoscope that is closer to the object under observation when the operator uses the endoscope; the proximal end referred to hereinafter refers to the end of the endoscope that is closer to the operator when the operator is using the endoscope.

Specifically, referring to fig. 1, an endoscope 10 provided by an embodiment of the present utility model includes a head end portion 100, an insertion portion 200, an operation portion 300, a light guide hose 400, a light guide portion 500, a cable wire 600, and an ultrasonic connector 700, which are sequentially connected.

Wherein components necessary for endoscopic imaging may be housed within the head end 100, for example, an optical imaging assembly 150, an ultrasound probe, etc. may be housed within the head end 100. Typically, the head end 100 is rigid, for example, the head end 100 may include a rigid head seat housing 110. The head end housing 110 may protect the internal structure of the head end 100. The head end seat housing 110 may be designed in a variety of shapes as desired.

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

The light guide part 500 may 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 may be transmitted to the illumination light window 151 of the head end 100 through the light guide medium penetrating through the light guide hose 400, the operation unit 300, and the insertion unit 200, and then emitted to irradiate the subject; after collecting the light returned from the subject, the camera 152 of the head end 100 generates an optical image signal of the subject, and transmits the optical image signal to the light guide 500, and the light guide 500 further transmits the optical image signal to the external endoscope host for image processing, thereby obtaining an optical image of the subject. In addition, the light guide 500 may also be connected to the ultrasonic connector 700 through the cable 600. The ultrasonic connector 700 is arranged to enable the endoscope to achieve the function of ultrasonic detection, and the endoscope can transmit ultrasonic signals to an external ultrasonic host through the ultrasonic connector 700, and the ultrasonic host can process the ultrasonic signals, so that an ultrasonic image of a detected body is obtained.

It should be noted that the embodiment shown in fig. 1 is described by taking an ultrasonic endoscope as an example, and in other embodiments not shown, the endoscope provided in the present application may have various other applications, for example, the endoscope provided in the present application may be applied to an electronic duodenoscope. It will be appreciated that when applied to a non-ultrasonic endoscope, components for implementing an ultrasonic detection function, such as the cable wire 600, the ultrasonic connector 700, and the ultrasonic probe, may be omitted.

The head end 100 of the endoscope 10 provided by the present utility model will be described in detail below.

Referring to fig. 7, the head end 100 may include a head end seat housing 110 and a forceps lifter 120. The head end seat shell 110 may be provided with an extension window 111 and a cleaning window 112, a receiving cavity 113 may be formed between the extension window 111 and the cleaning window 112, at least a portion of the forceps lifter 120 may be disposed in the receiving cavity 113, and the forceps lifter 120 may be communicated with the outside through the extension window 111. The pliers lifter 120 is generally rotatable about its own rotary section, which is also disposed within the receiving cavity 113. An operator can control the forceps lifter 120 to rotate at the operation part 300, when the medical apparatus 800 is worn through the apparatus channel 230, the part of the medical apparatus 800 extending out of the head end 100 will rest on the forceps lifter 120, at this time, by controlling the rotation of the forceps lifter 120, the extending direction of the medical apparatus 800 from the extending window 111 can be adjusted to meet the requirements of diagnosis and treatment under different conditions. The forceps holder 120 may have a portion that protrudes through the protruding window 111 during use, or may be entirely located within the receiving cavity 113. When the endoscope is used, the forceps 120 can be cleaned through the cleaning window 112.

To improve the reliability of the forceps lifter 120, the forceps lifter 120 is generally made of a metal material. Thus, when the medical device 800 is a high-frequency electrical device, the high-frequency electrical device is easily conducted to the forceps lifter 120 in case of improper operation, and then the patient is burned through the cleaning window. Accordingly, the head end 100 of the present utility model may further include an insulating cover 130, and the insulating cover 130 may be detachably coupled to the head end seat housing 110 to cover the cleaning window 112. The insulating cover 130 may have a shape adapted to the cleaning window 112, for example, referring to fig. 4, the cleaning window 112 is an elongated opening, and the insulating cover 130 is a shape adapted to the cleaning window 112. In other embodiments not shown, the insulating cover 130 may also have a shape different from the cleaning window 112, for example, the insulating cover 130 may have a blocking portion for blocking the cleaning window 112 and a cover portion of any shape, and the specific form of the insulating cover 130 may be designed according to actual needs, which will not be described herein. The insulating cover 130 may be removably attached to the head end seat housing 110 by a snap fit or a threaded connection, among other forms. Referring to fig. 5, the insulating cover 130 may be connected to the head end seat housing 110 by a snap fit. In other embodiments not shown, the insulating cover 130 may be connected to the head end seat housing 110 through threads, for example, the insulating cover 130 may include a cover portion and a blocking portion for 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 position on the head end seat housing 110 corresponding to the cover portion may also be provided with a threaded hole, and a screw may be connected to the two threaded holes, so that the insulating cover 130 may be connected to the head end seat housing 110, and when the insulating cover 130 needs to be disassembled, the connection between the insulating cover 130 and the head end seat housing 110 may be released only by disassembling the screw. In use of such an endoscope, high-frequency electricity cannot pass through the insulating cover 130 due to the insulating cover 130, and thus the patient can be prevented from being burned by the cleaning window 112. When used, the insulating cover 130 is disconnected from the head end housing 110, and the clamp lifter 120 may be cleaned at the cleaning window 112.

When the endoscope provided by the utility model is used, even if the medical instrument 800 which is lapped on the forceps lifter 120 is high-frequency electric equipment, the cleaning window 112 is sealed by the insulating cover 130, so that the patient is prevented from being burnt after the high-frequency electric conduction of the forceps lifter 120 passes through the cleaning window 112. Moreover, after the endoscope is used, since the insulating cover 130 is detachably connected to the head end seat housing 110, the insulating cover 130 can be detached from the head end seat housing 110, and the pliers lifter 120 in the accommodating cavity 113 can be cleaned through the cleaning window 112, that is, the cleaning difficulty and efficiency of the endoscope are not affected by the arrangement of the insulating cover 130.

In one embodiment of the present utility model, referring to fig. 5 and 8, the insulating cover 130 may be connected to the head end seat housing 110 by a snap structure. The locking structure may be in a form that the protrusion 134 is matched with the locking groove 114, and when the insulating cover 130 is connected to the head end seat housing 110, the protrusion 134 is inserted into the locking groove 114; when the insulating cover 130 is detached from the head end housing 110, the projection 134 is removed from the card slot 114. In the embodiment not shown, the locking structure may be in other various forms, which will not be described herein. When such an endoscope is used, the insulating cover 130 is more convenient to connect to the head end seat housing 110 and detach from the head end seat housing 110, so that the user experience is good, the structure is simpler, and the implementation is easy.

Specifically, referring to fig. 7 and 8, the detent structure may include a protrusion 134 and a detent 114, the protrusion 134 may be disposed on the insulating cover 130, and the detent 114 may be disposed on the header housing 110. When the insulating cover 130 is attached to the head-end housing 110, the protrusions 134 are inserted into the card slots 114. The protrusion 134 and the slot 114 may have shapes that are adapted, for example, in the illustrated embodiment, the protrusion 134 has a trapezoidal cross section, and the slot 114 is a groove with a trapezoidal cross section, so that the installation is easy and the stability is high. In other embodiments, the protrusions 134 may be rectangular in cross-section, and correspondingly, the slots 114 may be rectangular in cross-section grooves. The structure of the clamping structure is simple and easy to realize. Of course, in an embodiment not shown, the protrusion 134 may be disposed on the header housing 110, and the card slot 114 may be disposed on the insulating cover 130. The specific location of the protrusions 134 and the detents 114 is not limited herein.

Referring to fig. 5, 7 and 8, the insulating cover 130 may include a breakable structure 131, and the breakable structure 131 may be configured to break under an external force to disable the detent structure. In the illustrated embodiment, the breakable structure 131 is in the form of a groove, the wall thickness is thin, and the groove of the breakable structure 131 is broken under the action of an external force, so that the insulating cover 130 is broken into two portions at two sides of the breakable structure 131, and the two portions can be respectively extracted from the head end seat housing 110. In the embodiment not shown, the two sides of the insulating cover 130 along the length axis direction are provided with the protrusions 134, wherein the protrusions 134 on one side can be provided with the breakable structures 131, the head end seat shell 110 is provided with the clamping grooves 114 corresponding to the protrusions 134, the protrusions 134 are inserted into the clamping grooves 114 to form the clamping structures, the insulating cover 130 can be mounted on the cleaning window 112, when the insulating cover 130 needs to be dismounted, the insulating cover 130 can be pulled out from the cleaning window 112, under the action of external force, the breakable structures 131 can break on the protrusions 134 in the process, the strength of the clamping structures is insufficient to limit the insulating cover 130, and therefore the insulating cover 130 can be dismounted.

In the embodiment of the utility model, the insulation cover 130 is provided with the breakable structure 131, and the insulation cover 130 can be detached by breaking the insulation cover 130, so that a firmer connection mode can be used when the insulation cover 130 is connected to the head end seat shell 110, for example, in the illustrated embodiment, the insulation cover 130 can be provided with good plasticity, the protrusion 134 can be inserted into the clamping groove 114 through interference fit, and the insulation cover 130 is more reliable and not easy to fall off when being connected to the head end seat shell 110 through the clamping structure. After the use, the external force is applied to the breakable structure 131 and breaks the breakable structure, so that the locking structure is disabled, and the connection between the insulating cover 130 and the head end seat housing 110 is released, so that the insulating cover 130 can be detached from the cleaning window 112, and the pliers lifter 120 can be cleaned by the cleaning window 112. Such an insulating cover 130 is disposable in nature, and when the endoscope is required to be used next time, such an insulating cover 130 can be mounted at the cleaning window 112 in advance, and the insulating cover 130 is cleaner and more sanitary due to the disposable use, and conforms to the use environment in which the endoscope is generally used for medical treatment.

The insulating cover 130 may include a body portion 132 and a connection portion 133, and the breakable structure 131 may be disposed on the body portion 132. When the breakable structure 131 provided on the connection portion 133 is broken, a portion of the insulating cover 130 may remain in the receiving chamber 113 after the insulating cover 130 is detached. When the breakable structure 131 provided on the body portion 132 is broken, the insulating cover 130 is detached without leaving a residual portion in the accommodating chamber 113, which can be more convenient when the insulating cover 130 is detached.

Further, the thickness of the body portion 132 may be not greater than the thickness of the connection portion 133. The connecting portion 133 has a certain thickness, so that the plasticity of the connecting portion 133 is better, and it is ensured that the insulating cover 130 is more reliable and not easy to fall off when being connected to the head end seat housing 110. The thickness of the body portion 132 may be small, so that when an external force acts on the breakable structure 131, the breakable structure 131 may be broken without a large external force, and the insulating cover 130 may be detached.

The breakable structure 131 may be formed at a minimum wall thickness location on the body portion 132. Referring again to fig. 8, the breakable structure 131 on the body portion 132 may be thinner than other portions of the body portion 132, so that the breakable structure 131 may be easily broken by an external force, and the breakable structure 131 may occupy a small portion of the body portion 132, and the thinner wall thickness may not affect the capping effect of the insulating cover 130 on the cleaning window 112. In addition, the breakable structure 131 can be clearly contrasted with other parts of the main body 132, and when the user needs to detach the insulating cover 130, the user can find the position of the breakable structure 131 more quickly, and then apply external force to the breakable structure to break the breakable structure.

In one embodiment of the present utility model, referring to fig. 7 and 8, the head-end seat housing 110 may have an inner sidewall at the position of the cleaning window 112 (i.e., the inner sidewall of the head-end seat housing 110 surrounding the cleaning window 112), and a sealing ring 140 may be disposed between the inner sidewall and the connection portion 133. The connection portion 133 may be provided with a seal ring installation groove at a corresponding position, and the seal ring 140 may be disposed in the seal ring installation groove and sandwiched between the inner sidewall of the head end seat housing 110 and the connection portion 133. The seal 140 may be in the form of a silicone gel encapsulation, or in various other forms. The sealing ring 140 may be made of an insulating material. The sealing ring 140 can further improve the blocking effect of the insulating cover 130 on the cleaning window 112, and further improve the blocking insulating effect on the accommodating cavity 113 at the cleaning window 112.

In one embodiment of the utility model, referring to fig. 4 and 5, the wash window 112 may be an elongated opening extending along a length axis direction (shown as the P-P direction) of the head end seat housing 110. Many other components are typically disposed within head end 100, for example, various components such as optical fibers or electrical cables may be disposed within head end 100. Such a wash window 112 may allow more space for other components within the head end 100, which may make the structure within the head end 100 more compact. Moreover, for the shape adaptation with the rectangular cleaning window 112, the insulating cover 130 may also be rectangular, and the rectangular insulating cover 130 has better plasticity, and is easy to deform in the length axis direction of the head end seat shell 110, so as to facilitate the fixing of the locking structure, and the insulating cover 130 is more convenient to install to the cleaning window 112.

Referring to fig. 7 and 8, the body portion 132 may have an elongated shape, and the body portion 132 may have a shape adapted to the cleaning window 112. The connection portion 133 may include a first connection portion 1331 and a second connection portion 1332, and the first connection portion 1331 and the second connection portion 1332 may be formed at opposite sides of the body portion 132 in the length axis direction, respectively. The connecting portion 133 includes a first connecting portion 1331 and a second connecting portion 1332, so that the locking structure between the insulating cover 130 and the head end seat housing 110 is more stable, the insulating cover 130 seals the cleaning window 112 more reliably, and the whole device has a simple structure and is easy to be implemented. Further, since the body portion 132 has a better deformability in the longitudinal axis direction, the first and second connection portions 1331 and 1332 are formed at opposite sides of the body portion 132 in the longitudinal axis direction, and the protrusions 134 respectively provided at the first and second connection portions 1331 and 1332 can be locked in the corresponding locking grooves 114 by deformation of the body portion 132, thereby improving the convenience of installation.

Further, in the present embodiment, the breakable structure 131 may specifically be a groove provided in the body portion 132 and extending in a direction perpendicular to the longitudinal axis direction P-P, the groove having the same distance to the first connecting portion 1331 and the second connecting portion 1332 in the longitudinal axis direction P-P. In this way, when a sharp-ended member, such as a surgical scissors, is used, a force orthogonal to the extending direction and the longitudinal axis direction P-P is applied to the groove, and the groove is located at the substantially center of the body 132, the force arm is long, so that the force required for breaking can be reduced, and the convenience of detachment can be improved.

In one embodiment of the utility model, referring to fig. 6, the head end seat housing 110 may also be provided with an optical imaging assembly 150 on the same side of the protruding window 111. The optical imaging assembly 150 may include an illumination light window 151, a camera 152, etc., and the optical imaging assembly 150 may be used for optical imaging. When the endoscope is used, in order to clearly determine the position of the instrument in the treatment process, the extending window 111 and the optical imaging assembly 150 are positioned on the same side of the head end seat shell 110, and when an operator operates the medical instrument 800 and further controls the portion of the medical instrument 800 extending from the extending window 111 to assist in diagnosis and treatment, the illumination light window 151 can be used for providing brightness, and the operator can use real-time imaging of the optical imaging assembly 150 to observe the position of the distal end of the medical instrument 800, so that the diagnosis and treatment effect can be improved. In some embodiments, the protruding window 111 and the washing window 112 may be disposed at both sides of the head-end seat housing 110 axisymmetrically with respect to the length of the head-end seat housing 110. In this way, the accommodating cavity 113 between the extending window 111 and the cleaning window 112 can penetrate through the head end seat shell 110, when the cleaning window 112 is used for cleaning the pliers lifter 120, the accommodating cavity 113 is simpler in structure, has no excessive bending or blocking parts, can better extend into the cleaning brush to brush the bottom of the pliers lifter, and particularly has better cleaning effect on the conventional decontaminated dead angle such as the position of the rotating part. In addition, since the protruding window 111 and the optical imaging assembly 150 are generally located on the same side of the head end seat housing 110, in this embodiment, the position of the cleaning window 112 becomes a blind area of view, and it is difficult for the operator to identify and handle in time when a burn occurs, so that it is particularly necessary to provide the insulating cover 130 at the cleaning window 112.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front", "rear", "upper", "lower", "left", "right", "transverse", "vertical", "horizontal", and "top", "bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely for convenience of describing the present utility model and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, without limiting the scope of protection of the present utility model; the orientation terms "inner" and "outer" refer to the inner and outer relative to the outline of the components themselves.

For ease of description, regional relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein to describe regional positional relationships of one or more components or features to other components or features illustrated in the figures. It will be understood that the relative terms of regions include not only the orientation of the components illustrated in the figures, but also different orientations in use or operation. For example, if the element in the figures is turned over entirely, elements "over" or "on" other elements or features would then be included in cases where the element is "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". Moreover, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and all such cases are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, components, assemblies, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The present utility model has been illustrated by the above-described embodiments, but it should be understood that the above-described embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. In addition, it will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (11)

1. An endoscope comprising a head end, wherein the head end comprises:

the head end seat shell is provided with an extending window and a cleaning window, and a containing cavity is formed between the extending window and the cleaning window in a communicating manner;

the forceps lifting device is at least partially arranged in the accommodating cavity and used for adjusting the extending direction of the medical instrument from the extending window; and

an insulating cover detachably connected to the head end seat housing to cover the cleaning window.

2. The endoscope of claim 1, wherein the insulating cover is connected to the head end mount housing by a detent structure.

3. The endoscope of claim 2, wherein the insulating cover comprises a breakable structure configured to break under an external force to disable the catch structure.

4. An endoscope according to claim 3, wherein said insulating cover comprises a body portion and a connecting portion, said breakable structure being provided on said body portion, said detent structure comprising a projection and a detent, one of said projection and said detent being provided on said connecting portion, the other of said projection and said detent being provided on said head end mount housing.

5. The endoscope of claim 4, wherein the thickness of the body portion is no greater than the thickness of the connection portion.

6. The endoscope of claim 4, wherein the breakable structure is formed on the body portion at a location of minimum wall thickness.

7. The endoscope of claim 4, wherein a sealing ring is disposed between the inner sidewall of the head end seat housing surrounding the cleaning window and the connecting portion.

8. The endoscope of claim 4, wherein the wash window extends along a length axis of the head end seat housing.

9. The endoscope of claim 4, wherein the wash window is an elongated opening.

10. The endoscope according to claim 8 or 9, wherein the body portion has an elongated shape, and the connecting portion includes a first connecting portion and a second connecting portion, which are formed on opposite sides of the body portion in a longitudinal axis direction, respectively.

11. The endoscope of claim 10, wherein the distance of the breakable structure along the length axis to the first connection and the second connection is the same.