Insertion portion and endoscope

Abstract

An insertion portion and an endoscope, relating to the technical field of medical instruments. The insertion portion (100) comprises a tube body (110), a camera module (120) and an instrument tube (130). The distal end of the tube body (110) is provided with a fixed seat (111), the fixed seat (111) is provided with an opening (112), the camera module (120) is slidably arranged at the opening (112) in the radial direction of the tube body (110), an accommodating space (118) is formed between the fixed seat (111) and the camera module (120), and the distal end of the instrument tube (130) is located in the accommodating space (118). A driving module (140) drives the camera module (120) to slide out of the opening, so that the accommodating space (118) between the camera module (120) and the tube body (110) increases, and the distal end of the instrument tube (130) has a space to switch from a first state to a second state. For example, when a large-diameter medical instrument needs to be inserted into the instrument tube (130) for treatment, the distal end portion of the instrument tube (130) can be expanded to form a larger channel. The arrangement does not affect the insertion of the insertion portion (100) into a human body, and can also increase the cross-sectional area of the instrument tube (130), so that a medical instrument having a larger diameter can smoothly extend into the instrument tube (130) of the insertion portion (100).

Description

An insertion part and an endoscope Technical Field

[0001] This invention relates to the field of medical device technology, and more particularly to an insertion device and an endoscope. Background Technology

[0002] During disease treatment, medical staff typically need to use diagnostic instruments of varying diameters to pass through the instrument tube of an electronic endoscope. To facilitate smooth entry of the endoscope into the human body, the endoscope should not be too large.

[0003] Furthermore, a camera module is integrated into the insertion section of the endoscope, providing visual images to facilitate diagnosis and treatment by medical personnel. However, this also significantly reduces the cross-sectional area of ​​the instrument tube. This greatly limits the possibility of successfully inserting larger diameter medical instruments through the endoscope's instrument tube. Summary of the Invention

[0004] In view of the shortcomings of the aforementioned related technologies, this application provides an insertion part and an endoscope to solve the above-mentioned technical problems.

[0005] This application provides an insertion part, including a tube body, a camera module, and an instrument tube. A fixing seat is provided at the distal end of the tube body, and the fixing seat has an opening. The camera module is slidably disposed at the opening along the radial direction of the tube body. There is a receiving space between the fixing seat and the camera module. The distal end of the instrument tube is located in the receiving space. When the camera module is received in the opening, the instrument tube is in a first state. When the camera module slides out of the opening, the instrument tube can be switched to a second state. The cross-sectional area of ​​the distal end of the instrument tube in the first state is smaller than the cross-sectional area of ​​the distal end of the instrument tube in the second state.

[0006] To achieve the above and other related objectives, this application provides an endoscope including the aforementioned insertion portion.

[0007] The technical solution adopted in this invention achieves the following beneficial effects: the tube body can be adapted to internal human tissues, facilitating the smooth insertion of the insertion part into the body. The camera module can clearly acquire image information before insertion, enabling medical personnel to observe the condition and control the bending and insertion of the insertion part. By driving the camera module to slide out of the opening through the drive module, the accommodating space between the camera module and the tube body increases, and the distal end of the instrument tube has space to switch from a first state to a second state. For example, when a large-diameter medical instrument needs to be inserted into the instrument tube for treatment, the camera module is driven to slide out of the opening through the drive module, thereby allowing the distal end of the instrument tube to expand and form a larger channel. Exemplarily, the distal end of the instrument tube can be actively or passively switched from an elliptical shape to a circular shape, significantly increasing its cross-sectional area. Furthermore, when the distal end of the instrument tube switches to the second state, the bending caused by compression of the distal end of the instrument tube is eliminated, preventing it from affecting the entry of diagnostic and therapeutic instruments. This design does not affect the insertion of the insertion part into the human body, and at the same time, it can increase the cross-sectional area of ​​the instrument tube, so that medical devices with larger diameters can be smoothly inserted into the instrument tube of the insertion part, thereby expanding the application range. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 is a schematic diagram of the insertion portion of the instrument tube in a first state, as shown in an exemplary embodiment of this application.

[0010] Figure 2 is a schematic diagram of the structure of the fixing base shown in an exemplary embodiment of this application;

[0011] Figure 3 is a schematic diagram of the insertion portion of the instrument tube in the first state from another perspective, illustrating an exemplary embodiment of this application.

[0012] Figure 4 is a schematic diagram of the insertion portion of the instrument tube in the second state, as shown in an exemplary embodiment of this application.

[0013] Figure 5 is a schematic diagram of the insertion portion of the instrument tube in the second state from another perspective, illustrating an exemplary embodiment of this application.

[0014] Figure 6 is a cross-sectional view of the insertion portion of the instrument tube in a first state, as shown in an exemplary embodiment of this application.

[0015] Figure 7 is a cross-sectional view of the insertion portion of the instrument tube in the second state, as shown in an exemplary embodiment of this application;

[0016] Figure 8 is a schematic diagram of another insertion part structure shown in an exemplary embodiment of this application;

[0017] Figure 9 is a schematic diagram of the structure of an endoscope shown in an exemplary embodiment of this application.

[0018] In the diagram: 1. Endoscope; 100. Insertion section; 110. Tube body; 111. Fixing base; 112. Opening; 113. First side plate; 114. Second side plate; 115. Connecting plate; 116. First limiting section; 117. Second limiting section; 118. Accommodation space; 120. Camera module; 121. Camera base; 122. Light source; 123. Camera; 130. Instrument tube; 140. Drive module; 141. Airbag; 142. First daughter airbag; 143. Second daughter airbag; 144. First connecting section; 145. Second connecting section; 146. First bending section; 147. Second bending section; 150. Elastic skin; 151. First through hole; 152. Second through hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0020] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] In the various embodiments of this application, "near end" and "far end" refer to the distance of each component from the user in the usage environment. The end closer to the user is designated as the "near end", and the end farther from the user is designated as the "far end".

[0022] During disease treatment, medical staff typically need to use diagnostic instruments of varying diameters to pass through the instrument tube of an electronic endoscope. To facilitate smooth entry of the endoscope into the human body, the endoscope should not be too large.

[0023] Furthermore, a camera module is integrated into the insertion section of the endoscope, providing visual images to facilitate diagnosis and treatment by medical personnel. However, this also significantly reduces the cross-sectional area of ​​the instrument tube. This greatly limits the possibility of successfully inserting larger diameter medical instruments through the endoscope's instrument tube.

[0024] This embodiment provides an insertion part 100, as shown in Figure 1. The insertion part 100 is used to insert into the natural orifice of the human body or enter the human body through a surgical incision, so that medical personnel can observe or access areas that are difficult to reach by traditional examination methods. The insertion part 100 in Figure 1 does not show the outer skin or other structures to facilitate observation of its internal structure. The insertion part 100 may include a tube body 110, a camera module 120, and an instrument tube 130. The camera module 120 is slidably disposed in the tube body 110, and the instrument tube 130 is disposed inside the tube body 110.

[0025] In this embodiment, please continue to refer to Figure 1. The tube body 110 can be a slender hollow tubular structure. This embodiment is not limited to this, and the tube body 110 can be a rigid tube or a flexible tube, etc., which can be selected and designed according to the specific application scenario. A fixing seat 111 is provided at the distal end of the tube body 110. The fixing seat 111 can be integrated with the tube body 110 or detachable. The fixing seat 111 can have a certain strength, which can prevent the end of the insertion part 100 from being damaged during the insertion process, and can provide a mounting base and support for the instrument tube 130. The fixing seat 111 has an opening 112, which can be adapted to the outer contour of the camera module 120 so that the camera module 120 can slide smoothly into or out of the tube body 110.

[0026] Specifically, referring to Figures 1 and 2, the mounting base 111 may include a first side plate 113, a second side plate 114, and a connecting plate 115, with the connecting plate 115 connecting between the first side plate 113 and the second side plate 114. The first side plate 113, the second side plate 114, and the connecting plate 115 can be integrated into one piece, improving the structural strength of the mounting base 111. The first side plate 113 and the second side plate 114 extend radially along the tube body 110, with an opening 112 formed between them. The connecting plate 115 is positioned opposite to the opening 112. The shape and size of the opening 112 are determined according to actual needs to ensure it can fit the camera module 120. Furthermore, the first side plate 113 and the second side plate 114 can respectively abut against the two sides of the camera module 120, thereby restricting the direction of sliding in or out of the camera module 120 and ensuring stable operation of the camera module 120.

[0027] Preferably, referring to Figure 2, limiting portions are provided at opposite ends of the first side plate 113 and / or the second side plate 114. These limiting portions restrict the movement of the camera module 120 along the axis of the tube body 110. The limiting portions restrict unnecessary movement or movement of the camera module 120 along the axial direction of the tube body 110. For example, limiting portions are provided at opposite ends of the first side plate 113 and the second side plate 114. These limiting portions may include a first limiting portion 116 and a second limiting portion 117. The first limiting portion 116 of the first side plate 113 is formed by bending the end of the first side plate 113 towards the side closer to the second side plate 114. The first limiting portion 116 of the second side plate 114 is formed by bending the end of the second side plate 114 towards the side closer to the first side plate 113. The second limiting portion 117 may be connected between the first limiting portion 116 and the second limiting portion 117. The first limiting part 116 and the second limiting part 117 can abut against the camera module 120 to prevent the camera module 120 from sliding out of the tube body 110 along the axis of the tube body 110 and falling off. The design of the limiting part ensures that the camera module 120 can maintain a stable state when subjected to external forces (such as vibration, impact, etc.) and will not move unexpectedly along the axis of the tube body 110.

[0028] Understandably, the limiting part can also be a buckle, bolt hole or limiting rod, which can be selected and designed according to the specific camera module 120.

[0029] In this embodiment, referring to Figure 3, the camera module 120 can acquire image signals of the human body's interior and transmit these signals. The camera module 120 is slidably disposed at the opening 112 along the radial direction of the tube 110. In other words, the camera module 120 can move on a plane perpendicular to the axis of the tube 110, thereby adjusting its position relative to the opening 112 of the tube 110. Combined with the limiting effect of the first side plate 113, the second side plate 114, and the limiting portion on the camera module 120, the camera module 120 can move smoothly and accurately along a predetermined path. A receiving space 118 is provided between the fixed base 111 and the camera module 120, and the receiving space 118 can change as the camera module 120 moves. For example, when the camera module 120 slides radially outward along the tube 110, the receiving space 118 gradually increases; when the camera module 120 slides radially inward along the tube 110, the receiving space 118 gradually decreases. The cross-sectional area of ​​the accommodating space 118 can be varied, which can improve the application prospects of the insertion part 100.

[0030] Specifically, referring to Figure 3, the camera module 120 may include a camera base 121, a light source 122, and a camera 123. The camera base 121 is slidably disposed at the opening 112 along the radial direction of the tube 110, and the light source 122 and camera 123 are disposed within the camera base 121. As shown in Figure 4, the insertion part 100 in Figure 4 does not show the outer surface skin or other structures to facilitate observation of its internal structure. The camera base 121 can be configured to slide smoothly along the radial direction of the tube 110 (as shown by L1 in Figure 4) to facilitate the adjustment and positioning of the camera base 121 and the light source 122. The camera base 121 can provide a certain degree of protection for the light source 122 and the camera 123, improving the protective capability of the camera module 120. The camera 123 can acquire image signals from inside the human body and transmit these image signals. The light source 122 can be an LED light source, etc., and can provide necessary illumination for the camera 123. In addition, the orientation of the camera 123 and the light source 122 can be perpendicular to the direction of movement of the camera base 121, that is, the orientation of the camera 123 and the light source 122 is always in one direction, so as to facilitate the operation of the insertion part 100 by medical staff.

[0031] In this embodiment, referring to Figure 3, the instrument tube 130 can provide a channel for medical instruments to pass through, facilitating medical personnel to treat the inside of the human body. The distal end of the instrument tube 130 is located within the receiving space 118, and the tube body 110 can protect the instrument tube 130, improving its protective capability.

[0032] As shown in Figure 3, when the camera module 120 is housed within the opening 112, the instrument tube 130 is in its first state. Because the distal portion of the instrument tube 130 is confined within the receiving space 118, its cross-sectional area is relatively small. This arrangement helps maintain the overall compactness and stability of the insertion part 100, facilitating the insertion of the insertion part 100 into the human body by medical personnel.

[0033] As shown in Figure 5, when the camera module 120 slides out of the opening 112, the sliding direction of the camera module 120 is shown as L1 in Figure 5. The instrument tube 130 can be switched to the second state. The cross-sectional area of ​​the distal end of the instrument tube 130 in the first state is smaller than that in the second state. The distal part of the instrument tube 130 is no longer restricted by the receiving space 118, and its cross-sectional area will increase accordingly. This change not only provides the camera module 120 with a larger operating space and field of view, but also allows the instrument tube 130 itself to insert diagnostic and therapeutic instruments of different sizes more flexibly. Furthermore, please refer to Figures 6 and 7. Figure 6 is a cross-sectional view of the insertion part 100 when the instrument tube 130 is in the first state, and Figure 7 is a cross-sectional view of the insertion part 100 when the instrument tube 130 is in the second state. In comparison, it can be seen that the outer diameter of the insertion part 100 in the first state of the instrument tube 130 is smaller, making it easier to insert into the human body. Furthermore, when the distal end of the instrument tube 130 switches to the second state, the bending caused by compression of the distal end of the instrument tube 130 is eliminated, preventing it from affecting the insertion of the diagnostic instrument. This design ensures that the switching of the instrument tube 130 between different states is both smooth and reliable. It also improves the usability and flexibility of the insertion section 100.

[0034] Understandably, in one embodiment, after the insertion part 100 is inserted into the designated position, no other device is needed to drive the camera module 120 and the instrument tube 130. Medical personnel can directly insert the diagnostic and treatment instruments into the instrument tube 130, and the diagnostic and treatment instruments can drive the distal end of the instrument tube 130 to switch to a second state, for example, from an elliptical shape to a circular shape, and simultaneously drive the camera module 120 to slide out of the opening 112.

[0035] In this embodiment, referring again to FIG1, the insertion unit 100 may further include a drive module 140. The drive module 140 is disposed within the receiving space 118 and is used to drive the camera module 120 to slide radially along the tube body 110, so that the instrument tube 130 switches between a first state and a second state. The drive module 140 can actively change the relative position of the camera module 120 and synchronously switch the state of the instrument tube 130. This arrangement provides sufficient space for diagnostic and therapeutic instruments, ensuring that the instruments can be inserted smoothly and effectively improving the usability of the insertion unit 100.

[0036] Please refer to Figure 3 again. The drive module 140 may include an airbag 141, which is located in the receiving space 118. Furthermore, an airflow channel (not shown) may be provided within the tube 110, connecting the airbag 141 and an air pump, which controls the inflation and deflation of the airbag 141. When the airbag 141 inflates, it drives the camera module 120 to slide radially away from the instrument tube 130 along the tube 110, and / or, while inflating, it drives the instrument tube 130 to switch between a first state and a second state. The airbag 141 can effectively drive the camera module 120 and / or the instrument tube 130 to ensure smooth insertion of diagnostic instruments, effectively improving the usability of the insertion section 100. The driving effect of the airbag 141 is smoother and more efficient, facilitating operation by medical personnel.

[0037] In one embodiment, the airbag 141 can push the camera module 120 to slide out of the opening 112, increasing the volume of the accommodating space 118 and providing space for the distal end of the instrument tube 130 to switch to the second state. The instrument tube 130 can automatically return to the second state or be passively switched to the second state by inserting a diagnostic or therapeutic instrument.

[0038] In another embodiment, the airbag 141 can push the instrument tube 130 to switch the instrument tube 130 between a first state and a second state. During the state switching process, the instrument tube 130 pushes the camera module 120 to move, causing the camera module 120 to slide into or out of the opening 112.

[0039] In another embodiment, the airbag 141 can simultaneously drive the camera module 120 and the instrument tube 130. This configuration can greatly improve the driving effect of the driving module 140, ensure the insertion efficiency of the diagnostic and therapeutic instruments, and effectively improve the use effect of the insertion part 100.

[0040] In this embodiment, referring to Figure 3, the airbag 141 may include a first sub-bag 142 and a second sub-bag 143, which are respectively disposed on both sides of the instrument tube 130. For example, when the first sub-bag 142 and the second sub-bag 143 are inflated, they drive the camera module 120 to slide out of the opening 112 and compress the distal end of the instrument tube 130 in a radially inward direction, thereby switching the instrument tube 130 from a first state to a second state. The first sub-bag 142 and the second sub-bag 143 can compress both sides of the instrument tube 130. A greater number of airbags 141 can distribute the compressive force more evenly on the instrument tube 130, effectively preventing stress concentration and ensuring the safety of the instrument tube 130 during use.

[0041] In other cases, the airbag 141 may also include more sub-bags, such as a third sub-bag, a fourth sub-bag, etc., and the driving force of the airbag 141 can be transmitted more evenly to the camera module 120 and / or the instrument tube 130.

[0042] In this embodiment, please continue referring to Figure 4. The airbag 141 may include a first connecting portion 144 and a second connecting portion 145, which are spaced apart. The first connecting portion 144 is connected to the fixing base 111, and the second connecting portion 145 is connected to the outer peripheral wall of the instrument tube 130. In the first state, when the distal end of the instrument tube 130 is in the first state, at least one redundant bend is formed between the first connecting portion 144 and the second connecting portion 145. The redundant bend allows the first connecting portion 144 and the second connecting portion 145 to move relative to each other. The bend deforms when the airbag 141 is inflated, allowing the first connecting portion 144 and the second connecting portion 145 to move in opposite directions. The airbag 141 compresses the outer peripheral wall of the instrument tube 130, causing the instrument tube 130 to switch from the first state to the second state, ensuring that the diagnostic and therapeutic instruments can smoothly enter the instrument tube 130. Meanwhile, during the inflation of the airbag 141, the bent part can move toward the camera module 120 to drive the camera module 120 to slide out of the opening 112, ensuring that the instrument tube 130 can be smoothly switched to the second state.

[0043] More specifically, referring to Figure 3, with the distal end of the instrument tube 130 in its first state, a first bend 146 and a second bend 147 are redundantly formed between the first connecting portion 144 and the second connecting portion 145. The first bend 146 is located on the side of the airbag 141 closer to the camera module 120, and the second bend 147 is located on the side of the airbag 141 away from the camera module 120. The first bend 146 and the second bend 147 are located on both sides of the line connecting the first connecting portion 144 and the second connecting portion 145. The first bend 146 and the second bend 147 deform when the airbag 141 is inflated, so that the first connecting portion 144 and the second connecting portion 145 can move in opposite directions, thereby switching the instrument tube 130 from the first state to the second state and ensuring the effectiveness of the airbag 141. Meanwhile, when the airbag 141 is inflated, the first bend 146 and the second bend 147 can protrude in all directions, increasing the distance between the camera module 120 and the fixed base 111, driving the camera module 120 to slide out of the opening 112, providing sufficient space for the instrument tube 130 to switch smoothly to the second state.

[0044] Understandably, the airbag 141 may include multiple sub-bags, each sub-bag may include a first connecting portion 144 and a second connecting portion 145. The first connecting portion 144 and the second connecting portion 145 of each sub-bag may also form at least one redundant bend. Furthermore, each sub-bag may also redundantly form a first bend 146 and a second bend 147 to improve the driving effect of each sub-bag on the camera module 120 and the instrument tube 130, which will not be elaborated here.

[0045] In this embodiment, please refer to Figure 3. The camera module 120 is driven back into the fixed base 111 by other devices to ensure that the camera module 120 can return to its original position accurately, so as to avoid the camera module 120 obstructing medical staff from taking out the insertion part 100 and improve the safety of using the camera module 120.

[0046] In one embodiment, referring to Figure 3, the distal end of the instrument tube 130 is connected between the inner wall of the mounting base 111 and the camera module 120. The instrument tube 130 switches from a second state to a first state, driving the camera module 120 to be received within the opening 112. Exemplarily, the inner wall of the mounting base 111 and the camera module 120 are bonded to opposite sides of the instrument tube 130. The instrument tube 130 is driven by the airbag 141 to switch to the first state, driving the camera module 120 to slide towards the inner wall of the mounting base 111, allowing the camera module 120 to slide back into the mounting base 111, ensuring accurate return of the driven camera module 120.

[0047] In another embodiment, the insertion part 100 may further include an elastic element (not shown), which may be a spring or a sheet, etc., and this embodiment is not limited thereto. The elastic element is used to drive the camera module 120 to be received in the opening 112 and to drive the camera module 120. The elastic element can automatically drive the camera module 120 to slide back into the fixing seat 111, thereby improving work efficiency and safety.

[0048] In another embodiment, referring to Figure 8, the insertion part 100 further includes an elastic skin 150, which covers the outside of the tube body 110. The elastic skin 150 has a first through hole 151 and a second through hole 152. The first through hole 151 is opposite to the camera module 120, and the second through hole 152 connects to the instrument tube 130. The elastic skin 150 closes the opening 112. The elastic skin 150 can effectively improve the protective capability of the insertion part 100, preventing bodily fluids from entering the camera module 120, etc., and ensuring that the insertion part 100 can work smoothly. At the same time, the elastic skin 150 has a certain degree of elasticity and cushioning ability, preventing the insertion part 100 from damaging human tissue during insertion, and improving the safety of the insertion part 100. In addition, the elastic skin 150 can also surround and connect to the distal end of the instrument tube 130 to prevent gaps between the instrument tube 130 and the elastic skin 150, further improving the safety of the insertion part 100.

[0049] In addition, the elastic skin 150 can also be used to drive the camera module 120, so that the camera module 120 is housed within the opening 112, and the instrument tube 130 switches from the second state to the first state. Furthermore, when the instrument tube 130 switches states, the elastic skin 150 always covers the end of the instrument tube 130, and the second through hole 152 is always correspondingly positioned with the instrument tube 130, improving the protective performance of the instrument tube 130. When the camera module 120 slides out of the opening 112, the elastic skin 150 deforms, and the deformed elastic skin 150 drives the camera module 120 back into the opening 112, so that the camera module 120 slides back into the fixing base 111, ensuring that the camera module 120 can accurately return to its original position. Furthermore, the camera module 120 is driven and simultaneously squeezes the instrument tube 130, so that the instrument tube 130 switches from the second state to the first state. This setting allows the airbag 141 to deflate, the instrument tube 130 to automatically switch back to the first state, and the camera module 120 to slide back into the mounting base 111, improving work efficiency and safety.

[0050] To achieve the above and other related objectives, this application provides an endoscope 1, as shown in Figure 9. The endoscope 1 includes the aforementioned insertion portion 100.

[0051] This embodiment provides an insertion part 100 and an endoscope 1. The tube body 110 can be adapted to internal human tissues, facilitating the smooth insertion of the insertion part 100 into the human body. The camera module 120 can clearly acquire image information before the insertion part 100, enabling medical personnel to observe the condition and control the bending and insertion of the insertion part 100. By driving the camera module 120 out of the opening 112 through the drive module 140, the accommodating space 118 between the camera module 120 and the tube body 110 increases, and the distal end of the instrument tube 130 has space to switch from a first state to a second state. For example, when it is necessary to insert a large-diameter medical instrument into the instrument tube 130 for treatment, the camera module 120 is driven out of the opening 112 through the drive module 140, thereby allowing the distal part of the instrument tube 130 to expand and form a larger channel. Exemplarily, the distal end of the instrument tube 130 can be actively or passively switched from an elliptical shape to a circular shape, significantly increasing its cross-sectional area. Furthermore, when the distal end of the instrument tube 130 is switched to the second state, the bending caused by compression of the distal end of the instrument tube 130 is eliminated, preventing it from affecting the entry of diagnostic and therapeutic instruments. This setting does not affect the insertion part 100 from entering the human body, and at the same time, it can increase the cross-sectional area of ​​the instrument tube 130, so that medical instruments with larger diameters can be smoothly inserted into the instrument tube 130 of the insertion part 100, thereby increasing the application range.

[0052] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An insertion part, characterized in that, include: The tube body has a fixing seat at its distal end, and the fixing seat has an opening. A camera module, wherein the camera module is slidably disposed at the opening along the radial direction of the tube body, and a receiving space exists between the fixing base and the camera module; and An instrument tube, the distal end of which is located within the receiving space, is in a first state when the camera module is received within the opening, and can switch to a second state when the camera module slides out of the opening; Wherein, the cross-sectional area of ​​the distal end of the instrument tube in the first state is smaller than the cross-sectional area of ​​the distal end of the instrument tube in the second state.

2. The insertion part according to claim 1, characterized in that, The fixing base includes a first side plate, a second side plate, and a connecting plate connected between the first side plate and the second side plate. The first side plate and the second side plate extend radially along the tube body. The opening is formed between the first side plate and the second side plate. The connecting plate is disposed opposite to the opening.

3. The insertion part according to claim 2, characterized in that, Limiting portions are provided at opposite ends of the first side plate and / or the second side plate, the limiting portions being used to restrict the movement of the camera module along the axis of the tube body.

4. The insertion part according to claim 1, characterized in that, The insertion part further includes a drive module disposed within the receiving space and used to drive the camera module to slide radially along the tube body, so that the instrument tube switches between the first state and the second state.

5. The insertion part according to claim 4, characterized in that, The drive module includes an airbag located in the receiving space. When the airbag is inflated, the airbag drives the camera module to slide radially away from the instrument tube along the tube body, and / or, when the airbag is inflated, the airbag drives the instrument tube to switch between the first state and the second state.

6. The insertion portion according to claim 5, characterized in that, The airbag includes a first sub-bag and a second sub-bag, which are respectively disposed on both sides of the instrument tube. When the first sub-bag and the second sub-bag are inflated, the first sub-bag and the second sub-bag drive the camera module to slide out of the opening and squeeze the distal end of the instrument tube in a radially inward direction, so that the instrument tube switches from the first state to the second state.

7. The insertion portion according to claim 5, characterized in that, The airbag includes a first connecting portion and a second connecting portion spaced apart. The first connecting portion is connected to the fixed base, and the second connecting portion is connected to the outer peripheral wall of the instrument tube. When the distal end of the instrument tube is in the first state, at least one redundant bend is formed between the first connecting portion and the second connecting portion.

8. The insertion portion according to claim 7, characterized in that, When the distal end of the instrument tube is in the first state, a first bend and a second bend are redundantly formed between the first connecting portion and the second connecting portion. The first bend is located on the side of the airbag closer to the camera module, and the second bend is located on the side of the airbag away from the camera module.

9. The insertion part according to claim 1, characterized in that, The distal end of the instrument tube is connected between the inner wall of the fixed base and the camera module. The instrument tube switches from the second state to the first state, and the instrument tube drives the camera module so that the camera module is received in the opening. And / or, the insertion portion further includes an elastic element, the elastic element being used to drive the camera module to be received within the opening, and to drive the camera module to be received within the opening; And / or, the insertion part further includes an elastic skin, the elastic skin covering the outside of the tube body, and the elastic skin having a first through hole and a second through hole, the first through hole being disposed opposite to the camera module, the second through hole communicating with the instrument tube, the elastic skin closing the opening, the elastic skin being used to drive the camera module so that the camera module is received in the opening, and the instrument tube switching from the second state to the first state; And / or, the camera module includes a camera base, a light source, and a camera, wherein the camera base is slidably disposed at the opening along the radial direction of the tube, and the light source and the camera are disposed within the camera base.

10. An endoscope, characterized in that, Includes the insertion portion as described in any one of claims 1-9.

Images