Insertion portion and endoscope

Abstract

The present invention discloses an insertion part and an endoscope, which relate to the field of medical instruments. The insertion part comprises an insertion body, a first support part and a second support part. The distal end of the insertion body is provided with a front end assembly. The insertion body has a first channel. The first support part is arranged on the side of the insertion body, the second support part is arranged on the side of the insertion body, the second support part is arranged at an interval with the first support part, and a second channel is formed between the first support part and the second support part. The insertion body can be inserted into a sheath. The first support part and the second support part can abut against the sheath so that the insertion body can be constrained to one side of the sheath, determine the relative position between the insertion part and the sheath, and form a larger second channel. A second channel is formed between the first support part and the second support part. The first support part and the second support part can form a more independent second channel, improve the passability of the second channel, and realize more abundant functions and effects.

Description

Technical Field

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

[0002] Guide sheaths and endoscopes are high-precision medical devices specially designed and widely used in the field of urinary system inspection and treatment. As an auxiliary tool, the guide sheath is usually used to guide the endoscope or other medical devices into the urinary system to ensure the accuracy and safety of the operation. Its design fully considers the physiological structure of the human urinary system, can effectively reduce trauma and complications during surgery, and improve the success rate of surgery and the speed of patient recovery.

[0003] When using a guide sheath and an endoscope to remove kidney stones, the guide sheath can be placed into the kidney using a guide wire, and then the insertion portion of the endoscope can be inserted into the sheath to observe and break the stones. After the stones are broken, the sheath can be used to provide a negative pressure environment to suck the stones into the gap between the sheath and the insertion portion, thereby expelling the stones. However, the position of the insertion portion in the sheath is uncertain, and the shape and extension direction of the gap between the insertion portion and the sheath are uncertain, which may cause stone blockage and the insertion portion cannot remove the sheath. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the related art, the present application provides an insertion portion and an endoscope to solve the above-mentioned technical problems.

[0005] The present application provides an insertion portion of an endoscope, which includes an insertion body, a first support portion and a second support portion. The distal end of the insertion body is provided with a front end assembly, the insertion body has a first channel, the first support portion is arranged on the side of the insertion body, the second support portion is arranged on the side of the insertion body, the second support portion is spaced apart from the first support portion, and a second channel is formed between the first support portion and the second support portion.

[0006] In an embodiment of the present application, at least one of the first supporting portion and the second supporting portion is capable of deforming relative to the insertion body.

[0007] In one embodiment of the present application, the insertion portion includes a connecting portion, the connecting portion is connected between the first supporting portion and the second supporting portion, and the connecting portion is located on a side of the insertion body away from the second channel.

[0008] In one embodiment of the present application, a surface of the connecting portion away from the insertion body is configured as a curved surface.

[0009] In one embodiment of the present application, the surface of the insert body forming the second channel is recessed.

[0010] In one embodiment of the present application, the first supporting portion and / or the second supporting portion extends along an extension direction of the insertion body.

[0011] In one embodiment of the present application, the first supporting portion and / or the second supporting portion has a plurality of sub-supporting portions, and the plurality of sub-supporting portions are arranged at intervals along an extension direction of the insertion body.

[0012] In one embodiment of the present application, the insertion body includes a first section and a second section, the second section is connected to the proximal end of the first section, the cross-sectional area of ​​the first section is larger than that of the second section, the insertion body has a first side and a second side that are far away from each other, the axis of the second section is located on the first side of the axis of the first section, and the first support portion and the second support portion are connected to the second side of the second section.

[0013] In one embodiment of the present application, the front end component is located on one side of the distal end of the first channel, and the second channel and the front end component are arranged in sequence along the axis of the insertion portion.

[0014] In one embodiment of the present application, along the axial direction of the insertion portion, the distal end surfaces of the first support portion and the second support portion are located within the projection of the first segment.

[0015] In one embodiment of the present application, the first section is configured as a curved section.

[0016] In one embodiment of the present application, at least one bending direction of the first section intersects with an arrangement direction of the first channel and the second channel.

[0017] To achieve the above-mentioned purpose and other related purposes, the present application provides an endoscope, including the aforementioned insertion portion.

[0018] The technical solution adopted by the present invention can achieve the following beneficial effects: the insertion body can be inserted into the sheath. The first support part and the second support part can abut against the sheath so that the insertion body can be constrained to one side of the sheath, determine the relative position between the insertion part and the sheath, and form a larger second channel. The second channel is formed between the first support part and the second support part. For example, in stone surgery, the first channel is used to extend the disposal instrument and inject medium such as physiological saline, and the second channel is used to generate a negative pressure environment to suck the stone into the sheath and the insertion part out of the body to complete the stone surgery. The first support part and the second support part can form a more independent second channel, improve the passability of the second channel, and realize more abundant functions and effects. In addition, the second channel formed between the first support part and the second support part can be maintained by the first support part and the second support part, so that the cross section of the second channel is less affected by the bending of the endoscope and the change of the position of the endoscope relative to the sheath, and it is easier to form a stable second channel extending along the insertion, which is beneficial to the removal of stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a schematic structural diagram of an insertion portion shown in an exemplary embodiment of the present application;

[0021] Figure 2 is a schematic diagram of the structure of the first section shown in an exemplary embodiment of the present application;

[0022] Figure 3 is a schematic structural diagram of a second section, a first supporting portion, and a second supporting portion shown in an exemplary embodiment of the present application;

[0023] Figure 4 is a schematic structural diagram of a second section, a first supporting portion, and a second supporting portion in another state shown in an exemplary embodiment of the present application;

[0024] Figure 5 is a structural schematic diagram of a connection portion shown in an exemplary embodiment of the present application;

[0025] Figure 6 is a cross-sectional view of an insertion portion shown in an exemplary embodiment of the present application;

[0026] Figure 7 is a schematic structural diagram of another insertion portion shown in an exemplary embodiment of the present application;

[0027] Figure 8 is a structural schematic diagram of another insertion portion shown in an exemplary embodiment of the present application;

[0028] Fig. 9 It is a schematic diagram of the structure of an endoscope shown in an exemplary embodiment of the present application.

[0029] In the figure: 1. endoscope; 100. insertion part; 110. insertion body; 111. first channel; 112. first section; 113. second section; 114. first side; 115. second side; 116. front end assembly; 120. first support part; 130. second support part; 140. second channel; 150. connecting part; 151. arc surface; 160. traction channel; 2. sheath. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0031] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0032] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0033] Guide sheaths and endoscopes are high-precision medical devices specially designed and widely used in the field of urinary system inspection and treatment. As an auxiliary tool, the guide sheath is usually used to guide the endoscope or other medical devices into the urinary system to ensure the accuracy and safety of the operation. Its design fully considers the physiological structure of the human urinary system, can effectively reduce trauma and complications during surgery, and improve the success rate of surgery and the speed of patient recovery.

[0034] When using a guide sheath and an endoscope to remove kidney stones, the guide sheath can be placed into the kidney using a guide wire, and then the insertion portion of the endoscope can be inserted into the sheath to observe and break the stones. After the stones are broken, the sheath can be used to provide a negative pressure environment to suck the stones into the gap between the sheath and the insertion portion, thereby expelling the stones. However, the position of the insertion portion in the sheath is uncertain, and the shape and extension direction of the gap between the insertion portion and the sheath are uncertain, which may cause stone blockage and the insertion portion cannot remove the sheath.

[0035] The present application provides an insertion portion 100 of an endoscope 1, hereinafter referred to as the insertion portion 100. Figure 1 The inserting portion 100 may include an inserting body 110 , a first supporting portion 120 , and a second supporting portion 130 , and the first supporting portion 120 and the second supporting portion 130 are disposed on the inserting body 110 .

[0036] Please continue reading Figure 1 The distal end of the insertion body 110 is provided with a front end assembly 116. The front end assembly 116 of the insertion body 110 may include a camera module, a lighting module, etc. Under the control of medical personnel, the insertion body 110 can be rotated to a specified direction, and then the camera module can obtain an image signal of a specified position, so that the medical personnel can observe and control the device to perform treatment operations.

[0037] See also Figure 2 , the insertion body 110 has a first channel 111. The first channel 111 runs through the opposite ends of the insertion body 110, and the first channel 111 can be used to insert a treatment instrument, such as a biopsy forceps, a laser, etc., and / or, the first channel 111 is used to inject a medium, such as saline, distilled water, etc. For example, in a stone surgery, the first channel 111 can guide the laser into the body, and at the same time, the first channel 111 can simultaneously inject saline into the body. In this embodiment, the shape and purpose of the first channel 111 are not limited.

[0038] See also Figure 3 , the first support portion 120 and the second support portion 130 are both arranged on the side of the insertion body 110. Among them, the first support portion 120 and the second support portion 130 can be configured as the same structure, and the first support portion 120 and the second support portion 130 can be formed integrally with the insertion body 110. The first support portion 120 and the second support portion 130 are arranged at intervals, and the first support portion 120 and the second support portion 130 arranged at intervals can be arranged at opposite ends of the insertion body 110, and the first support portion 120 and the second support portion 130 can abut against different positions of the inner wall of the sheath tube 2 to play a better supporting role. Compared with a single-point limit, having two support portions can limit the insertion body 110 to one side of the sheath tube 2, thereby making the gap between the other side of the insertion body 110 and the sheath tube 2 larger, so as to allow the material to be discharged, such as stone particles broken by laser.

[0039] It is understandable that the insertion body 110 is also provided with one or more traction channels 160, and the traction channels 160 are used to pass the traction rope to control the rotation of the insertion part 100, so as to realize that the distal end of the insertion body 110 can be rotated to a specified direction.

[0040] Please continue reading Figure 3, the second support part 130 is spaced apart from the first support part 120, and the distance between the first support part 120 and the second support part 130 can be selected and designed according to the specific implementation scenario and method, and this embodiment does not limit it. A second channel 140 is formed between the first support part 120 and the second support part 130, and the second channel 140 and the first channel 111 are independent of each other, and the functions of the two can be configured to be the same or different, so that medical staff can operate the insertion part 100 more flexibly. Exemplarily, in stone surgery, the insertion part 100 is inserted into the cavity of the human body, and the medical staff can insert a laser or other treatment instrument through the first channel 111 to break the stone, and use the first channel 111 to inject a medium such as saline into the human body to promote the discharge of the stone and prevent infection. The medical staff can synchronously control the second channel 140 to generate negative pressure, and the second channel 140 can suck the broken stone particles and the medium out of the body together.

[0041] Please see also Figure 3 as well as Figure 4 , Figure 3 FIG. 2 shows the state of the first supporting portion 120 and the second supporting portion 130 when inserted into the sheath tube 2. Figure 4 The initial state of the first support portion 120 and the second support portion 130 is shown. At least one of the first support portion 120 and the second support portion 130 can be deformed relative to the insertion body 110. Exemplarily, the first support portion 120 and the second support portion 130 can be silicone or polyurethane, etc., and the present embodiment does not limit the material of the first support portion 120 and the second support portion 130. The first support portion 120 and the second support portion 130 have sufficient elasticity, and the first support portion 120 and the second support portion 130 will not hinder the insertion of the insertion portion 100 into the sheath 2, and can also play a limiting role to make the gap between the other side of the insertion body 110 and the sheath 2 larger.

[0042] At the same time, the first support part 120 and the second support part 130 are used to elastically resist the inner wall of the sheath tube 2 so that the insertion body 110 and the sheath tube 2 are relatively offset. The offset setting can form a certain gap between the insertion body 110 and the inner wall of the sheath tube 2, and these gaps provide a larger space for the discharge of the stone waiting for the discharge medium. In addition, the elastically set first support part 120 and the second support part 130 can adapt to the size of the sheath tube 2. When a certain gap is formed between the insertion body 110 and the inner wall of the sheath tube 2, the first support part 120 and the second support part 130 can move back to back, so that the ends of the first support part 120 and the second support part 130 extend to a position farther from the insertion body 110, and synchronously push the insertion body 110, so that the size of the second channel 140 can be configured larger. The second channel 140 has better passability, which solves the problem of unsmooth stone discharge when the insertion part 100 is in the sheath tube 2.

[0043] It is understandable that if Figure 4 As shown, the ends of the first support portion 120 and the second support portion 130 extend in a direction away from the insertion body 110. When the insertion portion 100 needs to be inserted into the sheath tube 2, the medical staff can bend the first support portion 120 and the second support portion 130, and the first support portion 120 and the second support portion 130 are elastically deformed to reduce the volume of the insertion portion 100, so as to facilitate the insertion of the insertion portion 100 into the sheath tube 2. After the insertion portion 100 is inserted into the sheath tube 2, the first support portion 120 and the second support portion 130 return to their original state and abut against the inner wall of the sheath tube 2, so that the insertion body 110 is offset relative to the sheath tube 2.

[0044] In this example, see Figure 5 The inserting portion 100 may include a connecting portion 150, which is connected between the first supporting portion 120 and the second supporting portion 130, and is located on a side of the inserting body 110 away from the second channel 140. The connecting portion 150 can effectively connect the first supporting portion 120 and the second supporting portion 130 together, avoid the first supporting portion 120 and the second supporting portion 130 from offsetting the inserting body 110, and thus reduce the change in the shape of the second channel 140.

[0045] In addition, the connecting portion 150 can also provide necessary support and stability when the insertion body 110 interacts with the sheath 2, so as to avoid the first channel 111 being affected by external squeezing. More specifically, the elastic first support portion 120 and the second support portion 130 or the human body cavity may cause unnecessary squeezing on the insertion body 110, and the first channel 111 in the insertion body 110 may also be squeezed, thereby affecting the smooth progress of the operation. In this embodiment, the connecting portion 150 can form a stable support structure, thereby avoiding the squeezing of the insertion body 110 by the first support portion 120 and the second support portion 130, and the connecting portion 150 can play a protective role to ensure that the first channel 111 of the insertion body 110 can flow normally.

[0046] Preferably, please continue to see Figure 5 The surface of the connection part 150 away from the insertion body 110 is configured as an arc surface 151. The size of the arc surface 151 is set corresponding to the sheath tube 2, and the arc surface 151 can be closely attached to the inner wall of the sheath tube 2. This setting not only enhances the contact area between the insertion body 110 and the sheath tube 2, but also ensures that the connection part 150 can evenly distribute the pressure when subjected to force, thereby avoiding structural damage or functional failure caused by excessive local pressure of the insertion body 110.

[0047] In this example, please refer to Figure 2, the insert body 110, the first support portion 120 and the second support portion 130 enclose the second channel 140, and the surface of the insert body 110 forming the second channel 140 is concavely arranged. The insert body 110 with a concave arrangement can give way to the second channel 140, thereby making the cross-sectional shape of the second channel 140 roughly circular, and the circular second channel 140 has no dead corners, thereby preventing the materials to be discharged from gathering or clogging in the second channel 140. In contrast, channels of other shapes (such as rectangles) may have four smaller angles, where the materials to be discharged may be clogged, thereby affecting the use effect of the second channel 140.

[0048] The wall of the concave insertion body 110 may have a redundant part of the wall to adapt to sheath tubes 2 of different sizes. When the insertion body 110 is inserted into a sheath tube 2 of a larger size, the concave insertion body 110 returns to its original shape, for example, the insertion body 110 returns from an elliptical structure to a circular structure, so that the insertion body 110 can have a first channel 111 of a larger size.

[0049] It is understandable that the first support portion 120 and the second support portion 130 are both configured as arc structures, and thus the surfaces of the first support portion 120 and the second support portion 130 are both arc surfaces. In addition, the surface of the insert body 110 forming the second channel 140 is concavely arranged, so that the second channel 140 can be closer to a circular structure, further improving the passing effect of the second channel 140.

[0050] In one embodiment, the first support portion 120 and / or the second support portion 130 extend along the extension direction of the insertion body 110. The first support portion 120 and / or the second support portion 130 can extend to opposite ends of the insertion body 110. This arrangement can constrain each position of the insertion body 110 and form the second channel 140, thereby improving the use effect of the insertion body 110.

[0051] In another embodiment, the first support portion 120 and / or the second support portion 130 has a plurality of sub-support portions, and the plurality of sub-support portions are arranged at intervals along the extension direction of the insertion body 110. The plurality of sub-support portions arranged at intervals can reduce the contact area between the first support portion 120 and / or the second support portion 130 and the inner wall of the sheath tube 2, reduce friction, and facilitate smooth insertion of the insertion body 110. At the same time, the plurality of sub-support portions can also be distributed in sequence between the opposite ends of the insertion body 110, so that each position of the insertion body 110 can be constrained, and the second channel 140 is formed, thereby improving the use effect of the insertion body 110.

[0052] In this example, see Figure 6The insertion body 110 may include a first section 112 and a second section 113, wherein the second section 113 is connected to the proximal end of the first section 112. The cross-sectional area of ​​the first section 112 is larger than that of the second section 113. In other words, the first section 112 has a larger space than the second section 113 to accommodate the front end assembly 116. The insertion body 110 has a first side 114 and a second side 115 that are far away from each other. The axis of the second section 113 (e.g., Figure 6 ) is located at the axis of the first section 112 (as shown in L2 in Figure 6 The second section 113 can still be off-axis relative to the first section 112. When the first section 112 is inserted into the sheath tube 2, the first section 112 is substantially coaxial with the sheath tube 2, and the second section 113 is offset relative to the sheath tube 2, ensuring that a larger space can be formed between the second section 113 and the sheath tube 2, so as to facilitate the passage of the material to be discharged.

[0053] The first support portion 120 and the second support portion 130 are connected to the second side 115 of the second section 113. Exemplarily, the first support portion 120 and the second support portion 130 can abut against the inner wall of the sheath tube 2, and the action direction of the first support portion 120 and the second support portion 130 is from the second side 115 to the first side 114, and the first support portion 120 and the second support portion 130 drive the insertion body 110 to deviate toward the first side 114, so that the insertion body 110 can be offset relative to the sheath tube 2, thereby improving and ensuring that a larger space can be formed between the first section 112 and the second section 113 and the sheath tube 2, so as to facilitate the passage of the material to be discharged.

[0054] When the second channel 140 and the front end assembly 116 are arranged on opposite sides, the volume of the insertion portion 100 will increase accordingly. Figure 6 As shown, the front end assembly 116 is located on one side of the distal end of the first channel 111, the second channel 140 is located on one side of the first channel 111, and the second channel 140 and the front end assembly 116 are arranged in sequence along the axis of the insertion portion 100. For example, the second channel 140 and the front end assembly 116 are arranged in sequence along the axis of the insertion portion 100. This arrangement can make the second channel 140 and the front end assembly 116 located on the same side of the insertion portion 100, which can reduce the volume of the insertion portion 100, and can also ensure that the first channel 111 is distributed straight, avoiding the first channel 111 from bending to affect the discharge efficiency of the medium and hinder the medical device from entering the first channel 111.

[0055] In the present embodiment, the first section 112 is configured as a bending section. Furthermore, the first section 112 can be an active bending section or a passive bending section. Exemplarily, when the first section 112 is an active bending section, the medical staff can operate the operating end of the endoscope 1 to control the first section 112 to bend in the specified directions around. Alternatively, the first section 112 is a passive bending section, and the first section 112 is driven to perform a bending operation to adapt to the curved cavity. At least part of the first channel 111 and the camera module of the front end assembly 116 are arranged in the first section 112, and the first section 112 can drive the camera module and the first channel 111 to bend, so that the medical staff can observe more images and operate the insertion part 100 to enter more places for treatment.

[0056] When the insertion portion 100 is bent, the bent first section 112 may block the second channel 140 or damage the structure of the first support portion 120 and the second support portion 130, thereby causing a poor suction effect of the second channel 140. In this embodiment, at least one bending direction of the first section 112 intersects with the arrangement direction between the first channel 111 and the second channel 140. Exemplarily, the first section 112 can be bent along at least a first direction (such as Figure 7 , that is, the first section 112 can be bent to the left and right sides, and the arrangement direction between the first channel 111 and the second channel 140 is the second direction (as shown in FIG. Figure 7 As shown in FIG. 1 , the arrangement direction between the second channel 140 and the first channel 111 is vertically downward, and the first direction and the second direction intersect. The first section 112 is bent along the first direction and does not completely squeeze or cover the second channel 140, ensuring that the bent insertion portion 100 can still absorb the substance to be discharged, thereby improving the use effect of the insertion portion 100.

[0057] In this example, see Figure 8 , along the axis direction of the insertion portion 100, the distal end surfaces of the first support portion 120 and the second support portion 130 are located within the projection of the first section 112. This arrangement can prevent the ends of the first support portion 120 and the second support portion 130 from abutting against the sheath tube 2 or the human body cavity, so that the first support portion 120 and the second support portion 130 can be smoothly inserted into the sheath tube 2 or the human body cavity. Figure 8 As shown, the distance between the first support portion 120 and the second support portion 130 is along the direction from the distal end to the proximal end of the insertion portion 100 (eg Figure 8 This arrangement can ensure that the end faces of the first support portion 120 and the second support portion 130 can be smoothly inserted into the sheath tube 2 or the human body cavity, and can also ensure that the size of the rear section of the second channel 140 is large enough to improve the passability of the second channel 140.

[0058] To achieve the above-mentioned and other related purposes, the present application provides an endoscope 1, see Fig. 9 , the endoscope 1 may include the aforementioned insertion portion 100. In this way, the endoscope 1 has the beneficial effects of any of the aforementioned solutions, which will not be repeated here. The endoscope 1 may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiment of the present application does not specifically limit the type of the endoscope 1.

[0059] The technical solution adopted by the present invention can achieve the following beneficial effects: the insertion body 110 can be inserted into the sheath tube 2. The first support portion 120 and the second support portion 130 can abut against the sheath tube 2 so that the insertion body 110 can be constrained to one side of the sheath tube 2, determine the relative position between the insertion portion 100 and the sheath tube 2, and form a larger second channel 140. The second channel 140 is formed between the first support portion 120 and the second support portion 130. For example, in stone surgery, the first channel 111 is used to extend the disposal instrument and inject media such as physiological saline, and the second channel 140 is used to generate a negative pressure environment to suck the stone into the sheath tube 2 and the insertion portion 100 out of the body to complete the stone surgery. The first support portion 120 and the second support portion 130 can form a more independent second channel 140, improve the passability of the second channel 140, and realize more abundant functions and effects. Furthermore, the second channel 140 formed between the first support portion 120 and the second support portion 130 can be maintained by the first support portion 120 and the second support portion 130, so that the cross-section of the second channel 140 is less affected by the bending of the endoscope and the change in the position of the endoscope 1 relative to the sheath 2, and it is easier to form a stable second channel 140 extending along the insertion, which is beneficial to the removal of stones.

[0060] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0061] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0062] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An insertion portion of an endoscope, characterized in that: include: An insertion body, wherein a front end assembly is disposed at a distal end of the insertion body, and a first channel is formed in the insertion body; A first support portion, disposed on the outer side of the insertion body; as well as A second supporting portion, disposed on an outer side surface of the insert body, the second supporting portion is spaced apart from the first supporting portion, and a second channel is formed between the first supporting portion and the second supporting portion; Wherein, when the insertion portion is inserted into the cavity, at least one of the first supporting portion and the second supporting portion can elastically cooperate with the inner wall of the cavity.

2. The insertion portion according to claim 1, characterized in that: At least one of the first support portion and the second support portion is deformable relative to the insertion body.

3. The insertion portion according to claim 1, characterized in that: The inserting portion includes a connecting portion connected between the first supporting portion and the second supporting portion, and the connecting portion is located at a side of the inserting body away from the second channel.

4. The insertion portion according to claim 3, characterized in that: A surface of the connecting portion away from the insertion body is configured as a curved surface.

5. The insertion portion according to claim 1, characterized in that The surface of the insert body forming the second channel is concavely arranged; and / or, the first supporting portion and / or the second supporting portion extends along an extension direction of the insertion body; And / or, the first supporting portion and / or the second supporting portion has a plurality of sub-supporting portions, and the plurality of sub-supporting portions are arranged at intervals along the extension direction of the insertion body.

6. The insertion portion according to claim 1, characterized in that The insertion body includes a first section and a second section, the second section is connected to the proximal end of the first section, the cross-sectional area of ​​the first section is larger than that of the second section, the insertion body has a first side and a second side that are far away from each other, the axis of the second section is located on the first side of the axis of the first section, and the first support portion and the second support portion are connected to the second side of the second section.

7. The insertion portion according to claim 6, characterized in that The front end assembly is located at one side of the distal end of the first channel, and the second channel and the front end assembly are arranged in sequence along the axis of the insertion portion; And / or, along the axial direction of the insertion portion, the distal end surfaces of the first supporting portion and the second supporting portion are located within the projection of the first segment.

8. The insertion portion according to claim 6, characterized in that: The first segment is configured as a curved segment.

9. The insertion portion according to claim 8, characterized in that: At least one bending direction of the first segment intersects with an arrangement direction of the first channel and the second channel.

10. An endoscope, characterized in that: Comprising the insertion portion according to any one of claims 1-9.

Images