A guide structure of an endoscope treatment instrument, an endoscope handle, and an endoscope

Abstract

The application is suitable for the technical field of endoscopes, and provides a guide structure of an endoscope treatment instrument, an endoscope handle and an endoscope. The guide structure of the endoscope treatment instrument comprises a guide piece. The guide piece can be sleeved on the distal end of the treatment instrument. The diameter of the distal end of the guide piece is greater than the diameter of the instrument port of the endoscope. During the process of inserting the treatment instrument into the endoscope, the guide piece at least partially abuts against the instrument port of the endoscope, and at least part of the guide piece can be torn along with the insertion of the treatment instrument into the instrument port. The guide structure provided by the application is used for sleeving the guide piece on the treatment instrument. During the process of inserting the treatment instrument into the endoscope, the guide piece guides the treatment instrument, so that the treatment instrument can be smoothly inserted into the endoscope, and the bending of the treatment instrument is prevented.

Description

Technical Field

[0001] This application relates to the field of endoscopy technology, and in particular to a guide structure, endoscope handle and endoscope of an endoscope treatment device. Background Technology

[0002] An endoscope is a commonly used medical device that can directly enter the body's natural passages, providing doctors with ample diagnostic information for disease treatment. During use, the endoscope's insertion section enters the body through natural orifices or a small surgical incision, allowing doctors to directly observe changes in relevant areas. The endoscope's insertion section contains an instrument channel, and the handle has an instrument port. Instruments (biopsy forceps, grasping forceps, scissors, etc.) enter the instrument channel through this port and into the field of view, where biopsies are performed for sampling.

[0003] In the existing technology, the operator continuously pushes the treatment instrument along the instrument opening, so that the treatment instrument enters the instrument channel tube and enters the preset position for biopsy sampling. During the process of the operator continuously pushing the treatment instrument, the part of the treatment instrument outside the instrument opening is prone to bending due to force, which prevents the treatment instrument from moving forward normally. Summary of the Invention

[0004] The purpose of this application is to provide a guide structure, endoscope handle, and endoscope for an endoscopic procedure to solve the aforementioned technical problems in the prior art, mainly including the following: The first aspect of this application provides a guiding structure for an endoscopic procedure instrument, comprising: A guide, which can be sleeved on the distal end of the treatment device; The diameter of the distal end of the guide is larger than the diameter of the instrument port of the endoscope. During the insertion of the treatment instrument into the endoscope, the guide at least partially abuts against the instrument port of the endoscope, and at least a portion of the guide can tear as the treatment instrument is inserted into the instrument port.

[0005] Furthermore, to better realize this application, the following configuration structure is specifically adopted: the guide includes a connecting seat and a tearing member; The connector is disposed at the distal end of the guide, the connector is adapted to the instrument port of the endoscope, and the connector can abut against and connect to the instrument port of the endoscope. At least a portion of the tearing element is fitted onto the connecting seat, and during the insertion of the treatment instrument into the endoscope, the tearing element can be torn from the distal end of the tearing element to the proximal end under the action of the connecting seat.

[0006] To further improve the implementation of this application, the following structure is specifically adopted: at least one side of the tearing member is provided with a tearing groove, the tearing groove extends along the axial direction of the tearing member, and the tearing member can tear along the position of the tearing groove.

[0007] To further improve the implementation of this application, the following structure is specifically adopted: at least one side of the distal end of the tearing member is provided with a tear opening, and the proximal end of the tear opening extends along the axial direction of the tearing member to connect with the tear groove. During the insertion of the treatment instrument into the endoscope, the connecting seat abuts against the distal end of the tear opening to tear the tearing member.

[0008] To further improve the implementation of this application, the following structure is specifically adopted: at least one side of the proximal end of the tearing member is provided with a compression port along the axial direction, and the distal end of the compression port is connected to the proximal end of the tear groove.

[0009] To further improve the implementation of this application, the following configuration structure is adopted: the size of the connecting seat at one end inside the tear is smaller than the size of the other end of the connecting seat that abuts against the instrument tip of the endoscope.

[0010] To further improve the implementation of this application, the following structure is specifically adopted: the outer peripheral surface of the connecting seat is provided with a tearing protrusion, and during the insertion of the treatment instrument into the endoscope, the tearing protrusion can abut against the distal end of the tear opening to tear the tearing component.

[0011] To further improve the implementation of this application, the following structure is specifically adopted: a first magnetic element is provided at the distal end of the connector, and the connector is aligned with a second magnetic element at the instrument tip of the endoscope by magnetic attraction through the first magnetic element.

[0012] To further improve the implementation of this application, the following structure is specifically adopted: the connecting seat is also provided with an instrument channel, through which the treatment instrument can enter the instrument mouth, and the connecting seat and the treatment instrument are sealed together.

[0013] A second aspect of this application also provides an endoscope handle, including the aforementioned guide structure for the endoscopic procedure instrument.

[0014] A third aspect of this application provides an endoscope including the aforementioned endoscope handle.

[0015] This application has at least the following technical advantages over the prior art: This application provides a guiding structure for an endoscopic instrument. A guide is fitted onto the instrument. During insertion into the endoscope, the guide provides guidance and support, preventing bending of the portion of the instrument near the endoscope's nozzle outside the endoscope. This reduces the difficulty of insertion and allows the instrument to enter smoothly. As the instrument is inserted, the distal portion of the guide, not yet fitted with the instrument, will not continue to guide it and will not tear. As the instrument is further inserted, the guide tears until it completely detaches from the instrument, thus reducing the weight of the endoscope during operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the guiding structure of the endoscopic procedure device in this application; Figure 2 This is a schematic diagram of the guide structure in this application. Figure 1 ; Figure 3 yes Figure 2 Enlarged view of section A; Figure 4 This is a schematic diagram of the guide structure in this application. Figure 2 ; Figure 5 yes Figure 4 Enlarged view of section B; Figure 6 This is a schematic diagram of the guide structure in this application. Figure 3 ; Figure 7 This is a schematic diagram of the tearing component in this application. Figure 1 ; Figure 8 yes Figure 7 Enlarged view of section C; Figure 9 This is a schematic diagram of the tearing component in this application. Figure 2 ; Figure 10 This is a schematic diagram of the connection between the guide and the instrument nozzle in this application; Figure 11 yes Figure 10 Enlarged view of section D in the middle; Figure 12 This is a schematic diagram of the connector structure in this application. Figure 1 ; Figure 13 This is a schematic diagram of the connector structure in this application. Figure 2 ; Figure 14 This is a schematic diagram showing the connection between the instrument nozzle and the treatment instrument in this application; Figure 15 yes Figure 14 Enlarged view of section E in the middle.

[0018] In the figure: 100-guide; 10-tear element; 11-tear groove; 12-tear opening; 13-extrusion opening; 20-connecting seat; 21-tear protrusion; 22-first magnetic element; 23-instrument channel; 30-treatment instrument; 40-instrument nozzle; 41-instrument opening; 42-second magnetic element. Detailed Implementation

[0019] The following description provides many different embodiments or examples for implementing various features of this application. The elements and arrangements described in the specific examples below are only for concise expression of this application and are merely examples, not intended to limit this application.

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to represent selected embodiments of this application.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0022] In this application, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" a first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In addition, in this application, "proximal end" and "distal end" refer to the near and far positions of the structure relative to human operation in the usage environment, so as to facilitate the description of the positional relationship between the components and to facilitate understanding; for the same component, "proximal end" and "distal end" are the relative positional relationship of the component, not absolute; therefore, they should be understood from the perspective of implementing the principle of this application, and should not deviate from the essence of this application.

[0024] The inventors discovered during their research that in the field of endoscopy, the instruments are inserted into the instrument channel of the endoscope by the operator pushing them along the instrument port. As the operator pushes the instruments forward, the part of the instrument between the operator's hand and the instrument port is left unsupported and easily bent under pressure, causing damage to the instrument.

[0025] In view of the above problems, the first aspect of this application provides a guiding structure for an endoscopic procedure instrument, such as... Figures 1-15 As shown, it includes: like Figure 1 As shown, a guide 100 is fitted onto the distal end of the treatment instrument 30. Exemplarily, the guide 100 has a hollow structure, meaning it has a receiving cavity that extends through the guide 100 along its axial direction. Exemplarily, the guide 100 can be pre-positioned on the treatment instrument 30, i.e., the guide 100 is fitted onto the treatment instrument 30 before the endoscope's instrument tip 40 is inserted. In some optional embodiments, the guide 100 can be positioned on the treatment instrument 30 during preoperative preparation or product manufacturing to avoid this operation taking up surgical time. Thus, during the insertion of the treatment instrument 30, the guide 100 is first aligned with the instrument tip 40, aligning the end of the treatment instrument 30 with the instrument tip 40, facilitating insertion of the treatment instrument 30 into the instrument tip 40.

[0026] like Figures 10-15As shown, the diameter of the distal end of the guide 100 is larger than the diameter of the instrument port 41 of the endoscope. For example, the outer diameter of the guide 100 is larger than the inner diameter of the instrument port 41 of the endoscope to prevent the guide 100 from being inserted into the instrument port 41. During the insertion of the treatment instrument 30 into the endoscope, the guide 100 at least partially abuts against the instrument port 41 of the endoscope, and at least a portion of the guide 100 may tear as the treatment instrument 30 is inserted into the instrument port 41.

[0027] In some alternative embodiments, such as Figures 2-6 As shown, during the process of the operator inserting the treatment instrument 30 into the endoscope by holding the guide 100, the treatment instrument 30 moves with the guide 100, the end of the guide 100 near the instrument mouth 40 is continuously torn and slides relative to the instrument opening 41, thereby allowing the treatment instrument 30 to be inserted into the instrument opening 41.

[0028] In some alternative embodiments, the diameter of the receiving cavity of the guide 100 that accommodates the treatment instrument is smaller than the outer diameter of the instrument port 41. Thus, during the process of an operator inserting the treatment instrument 30 into the endoscope by holding the guide 100, the instrument port 41 can compress the guide 100, thereby potentially causing the guide 100 to expand and tear.

[0029] In some optional embodiments, the tearable portion of the guide 100 is provided with a pre-tear portion. Optionally, the inner diameter of the pre-tear portion is greater than or equal to the outer diameter of the instrument port 41, so that after the guide 100 is mated with the instrument port 41, the pre-tear portion can at least partially interact with the instrument port 41 to facilitate tearing of the guide 100. Exemplarily, the pre-tear portion can be, but is not limited to, a preset enlarged hole structure or an opening structure. Therefore, this embodiment does not limit the specific structure of the pre-tear portion.

[0030] In the above embodiments, the guide 100 can be at least partially fitted onto the instrument mouth 40 during insertion, which helps to improve the stability of the connection between the guide 100 and the instrument mouth 40. In addition, it also helps to prevent the guide 100 from tearing, reducing the difficulty for the operator to insert the treatment instrument 30.

[0031] In some alternative embodiments, after the treatment instrument 30 is inserted into the endoscope, the tearable portion of the guide 100 is completely torn and separated from the endoscope. The non-tearable portions of the guide 100, such as the connector and the treatment instrument 30, remain on the endoscope. After the tearable portion of the guide 100 is torn, the weight of the endoscope is reduced, and the operating space for medical personnel is increased.

[0032] In some alternative embodiments, the guide 100 is completely torn after the treatment instrument 30 has passed through the bend in the instrument tubing of the endoscope. Exemplarily, the length of the guide 100 in the extension direction of the treatment instrument 30 is a first length. The length of the instrument tubing between the distal end of the bend in the instrument tubing and the instrument tip 40 is a second length. The first length is greater than or equal to the second length to ensure that the guide 100 is not completely torn until after the treatment instrument 30 has passed through the bend in the instrument tubing of the endoscope. In this way, the guide 100 can provide support for the treatment instrument 30 at the point of greatest resistance during insertion, preventing the portion of the treatment instrument 30 adjacent to the instrument tip 40 outside the endoscope from bending during insertion, thus reducing the difficulty of insertion.

[0033] Therefore, the guiding structure of the endoscopic instrument provided in this application includes a guide 100 fitted onto the instrument 30. During insertion of the instrument 30 into the endoscope, the guide 100 provides guidance and support, preventing bending of the portion of the instrument 30 adjacent to the instrument tip 40 outside the endoscope during insertion. This reduces the difficulty of insertion, allowing the instrument 30 to smoothly enter the endoscope. Furthermore, as the instrument 30 is inserted into the endoscope, the portion of the guide 100 not fitted with the instrument 30 will not continue to guide the instrument 30 and will not tear. As the instrument 30 is continuously inserted into the endoscope, the guide 100 will tear until it completely detaches from the instrument 30, thus reducing the weight of the endoscope during operation.

[0034] According to some alternative embodiments, the guide 100 includes a connector 20 and a tear member 10; the connector 20 is disposed at the distal end of the guide 100, the connector 20 is adapted to the instrument port 41 of the endoscope, and the connector 20 can abut against and connect to the instrument port 41 of the endoscope; at least a portion of the tear member 10 is sleeved on the connector 20, and during the insertion of the treatment instrument 30 into the endoscope, the tear member 10 can be torn from the distal end to the proximal end of the tear member 10 under the action of the connector 20.

[0035] In the above embodiments, such as Figures 1-6 As shown, one end of the connector 20 abuts against the instrument port 41. For example, the two can be abutted by magnetic attraction. The other end of the connector 20 is inserted into the distal end of the tear piece 10. As the treatment instrument 30 is inserted into the endoscope, the distal end of the tear piece 10 abuts against the outer peripheral surface of the connector 20, thereby causing the tear piece 10 to tear under the action of the connector 20.

[0036] For example, the tearing member 10 can be torn in at least two ways under the action of the connecting seat 20. One way is that when the tearing member 10 continuously abuts against the connecting seat 20, the connecting seat 20 will cause the tearing member 10 to expand and crack. Another way is that the tearing member 10 can be torn by cutting at the end that abuts against the connecting seat 20.

[0037] Optionally, the tearing element 10 is a tearing tube, at least a portion of which cooperates with the treatment device 30, and the two use friction to keep the tearing tube in a preset position on the treatment device 30.

[0038] Optionally, the size of the receiving cavity in the tear piece 10 is adapted to the size of the treatment device 30, that is, the tear piece 10 and the treatment device 30 are fitted together, so that the tear piece 10 can be held in a preset position on the treatment device 30 by friction, which can better guide and support the treatment device 30. For example, a tear opening 12 is provided at the distal end of the tear piece 10, through which the tear piece 10 can be torn more easily.

[0039] Optionally, the size of the receiving cavity of the tear piece 10 is larger than the size of the treatment device 30, that is, there is a gap between the tear piece 10 and the treatment device 30, so that the tear piece 10 can be torn more easily and the treatment device 30 can be easily inserted into the tear piece 10. For example, a clamping member can be provided on the tear piece 10 to fix the tear piece 10 and the treatment device 30.

[0040] Optionally, when the size of the receiving cavity of the tear piece 10 is larger than the size of the treatment device 30, i.e. there is a gap between the tear piece 10 and the treatment device 30, a damping part is provided on at least one of the inner wall of the tear piece 10 and the outer wall of the treatment device 30, so that friction is generated between the two, thereby causing the tear piece 10 to stay at a preset position of the treatment device 30. For example, the damping part may be, but is not limited to, an elastic rubber ring.

[0041] According to some alternative embodiments, such as Figure 7 As shown, at least one side of the tearing member 10 is provided with a tearing groove 11, the tearing groove 11 extends along the axial direction of the tearing member 10, and the tearing member 10 can tear along the position of the tearing groove 11.

[0042] In the above embodiments, this application preferably provides tear grooves 11 on both sides of the tearing member 10, which makes the tearing member 10 easier to tear. Specifically, an outer tear groove is formed on the outer peripheral surface of the tearing member 10, and an inner tear groove is formed on the inner peripheral surface of the tearing member 10 at a position corresponding to the outer tear groove. The outer tear groove and the inner tear groove are not connected. The thickness at the connection between the outer tear groove and the inner tear groove on the tearing member 10 is much smaller than the thickness at the adjacent position of the tearing member 10. When the tearing member 10 abuts against the connecting seat 20, it is easier to tear the tearing member 10 from this connection. Optionally, an outer tear groove is only formed on the outer peripheral surface of the tearing member 10, or an inner tear groove is only formed on the inner peripheral surface of the tearing member 10. There is no limitation here, as long as it facilitates the tearing of the tearing member 10.

[0043] According to some alternative embodiments, at least one side of the distal end of the tear member 10 is provided with a tear opening 12, and the proximal end of the tear opening 12 extends along the axial direction of the tear member 10 to connect with the tear groove 11. During the insertion of the treatment instrument 30 into the endoscope, the connecting seat 20 abuts against the distal end of the tear opening 12 to tear the tear member 10.

[0044] like Figures 7-11 As shown, the tear opening 12 is located at the distal end of the tear piece 10, and the tear opening 12 extends from the distal end to the proximal end of the tear piece 10. The tear opening 12 is inverted V-shaped, meaning that the opening size at the distal end of the tear opening 12 is larger than the opening size at the proximal end. This arrangement increases the contact area between the lower end of the tear piece 10 and the connecting seat 20 through the tear opening 12, making it easier for the connecting seat 20 to tear the tear piece 10. Secondly, the tear opening 12 facilitates the accurate alignment of the tearing protrusion 21 on the connecting seat 20 with the tear opening 12 during the movement of the tear piece 10 along the connecting seat 20. It also facilitates the alignment of the tearing protrusion 21 with the tear groove 11, allowing the tearing protrusion 21 to smoothly enter the tear opening 12 and tear the tear piece 10 along the tear groove 11.

[0045] According to some alternative embodiments, at least one side of the proximal end of the tear member 10 is provided with a compression port 13 in the axial direction, and the distal end of the compression port 13 is connected to the proximal end of the tear groove 11.

[0046] In the above embodiments, such as Figure 6As shown, after the tear piece 10 moves a certain distance with the treatment instrument 30 towards the endoscope, the treatment instrument 30 has passed the position in the endoscope where it is easy to bend. At this time, the treatment instrument 30 is also about to be inserted into the endoscope. At this time, the tear piece 10 is no longer needed to guide and support the treatment instrument 30. When the operator pushes the treatment instrument 30 for the last time through the tear piece 10, he holds the compression port 13 and pushes it towards the connecting seat 20. Under the action of the connecting seat 20, the tear piece 10 is completely torn along the tear groove 11. Due to the design of the compression port 13, the operator only needs to release his hand from the compression port 13, and the tear piece 10 will automatically separate at the compression port 13 and fall off the treatment instrument 30.

[0047] For example, if the size of the receiving cavity of the tear piece 10 is larger than the size of the treatment instrument 30, that is, when there is a gap between the tear piece 10 and the treatment instrument 30, the tear piece 10 will be crushed when the operator holds the treatment instrument 30 through the tear piece 10. In view of this, a compression port 13 is provided at the proximal end of the tear piece 10. When the operator holds the compression port on the tear piece 10, the gap of the compression port 13 will become smaller, that is, the radial dimension of the tear piece 10 will decrease, so that the tear piece 10 and the treatment instrument 30 fit more tightly. At this time, the operator only needs a smaller gripping force to move the tear piece 10 and the treatment instrument 30 together toward the instrument mouth 40, which helps to reduce the gripping force of the operator when holding the tear piece 10 to insert the treatment instrument 30 into the endoscope.

[0048] According to some alternative embodiments, the dimension of the end of the connecting seat 20 located inside the tearing member 10 is smaller than the dimension of the other end of the connecting seat 20 that abuts against the instrument tip 40 of the endoscope. In this application, the connecting seat 20 has a structure that is smaller at the top and larger at the bottom, so that the tearing member 10 can move along the smaller end of the connecting seat 20 to the larger end, facilitating expansion tearing of the tearing member 10. For example, there is a concave surface with an arc between the smaller end and the larger end of the connecting seat 20, so that the tearing member 10 is easily torn under the action of the concave surface of the connecting seat 20.

[0049] According to some alternative embodiments, the outer peripheral surface of the connector 20 is provided with a tearing protrusion 21, which can abut against the distal end of the tear opening 12 to tear the tear member 10 during the insertion of the treatment instrument 30 into the endoscope.

[0050] In the above embodiments, such as Figure 12 and Figure 13As shown, tear protrusions 21 are disposed on both sides of the outer peripheral surface of the connecting seat 20, and the tear protrusions 21 have a knife-edge structure. The thickness of the tear protrusions 21 gradually decreases along the direction close to the tear member 10, that is, the thickness of the tear protrusion 21 at the end close to the tear member 10 is less than the thickness at the end far from the tear member 10. Optionally, the thickness of the tear protrusion 12 at the end close to the tear member 10 is less than the width of the distal end of the tear opening 12. When the tear opening 12 at the distal end of the tear member 10 is facing the connecting seat 20, the thinner end of the tear protrusion 12 can smoothly enter the tear opening 12 until it abuts against the proximal end of the tear opening 12 and tears the tear member 10 along the tear groove 11.

[0051] According to some alternative embodiments, such as Figures 12-15 The connecting seat 20 shown is provided with a first magnetic element 22 at its distal end. The connecting seat 20 is aligned with the second magnetic element 42 at the end of the endoscope's instrument tip 40 by magnetic attraction through the first magnetic element 22.

[0052] In the above embodiment, a groove is provided at the bottom of the distal end of the connecting seat 20, a first magnetic element 22 is fixedly provided in the groove, and a second magnetic element 42 is provided at the proximal end of the instrument mouth 40. The distal end of the connecting seat 20 is aligned and connected with the instrument mouth 40 under the action of magnetic attraction.

[0053] Optionally, the bottom of the connector 20 can also be flat, with the first magnetic element 22 encased inside. Similarly, the first magnetic element 22 can also magnetically attract the second magnetic element 42, so that the connector 20 is aligned and connected with the instrument nozzle 40.

[0054] Optionally, both the first magnetic element 22 and the second magnetic element 42 are annular, which allows the center of the connecting seat 20 and the instrument mouth 40 to be aligned. The treatment instrument 30 can enter the center of the second magnetic element 42 from the center of the first magnetic element 22, ensuring that the treatment instrument 30 can smoothly enter the instrument mouth 40 from the connecting seat 20 without being obstructed by misalignment of the connecting seat 20 and the instrument mouth 40.

[0055] According to some alternative embodiments, the connecting seat 20 is further provided with an instrument channel 23, through which the treatment instrument 30 can pass into the instrument mouth 40, and the connecting seat 20 and the treatment instrument 30 are sealed together.

[0056] In the above embodiment, the instrument channel 23 is connected to the receiving cavity of the tear piece 10, and the distal end of the tear piece 10 wraps around the proximal end of the connecting seat 20, so that the connecting seat 20 and the tear piece 10 are sealed together. The friction force generated by the sealed cooperation between the two can be used to keep the tear piece 10 on the treatment instrument 30. At the same time, it can also ensure that the instrument port 41 is in a sealed state, and the airtightness of the endoscope will not be affected when the treatment instrument 30 enters the instrument port 41.

[0057] In some alternatives, after the tear piece 10 tears from the treatment instrument 30, the connector 20 can still remain on the treatment instrument 30 and abut against the instrument nozzle 40, thereby improving the seal between the treatment instrument 30 and the instrument nozzle 40. For example, when the endoscope extracts human tissue samples under negative pressure, the abutment between the connector 20 and the instrument nozzle 40 can further prevent air from entering the endoscope.

[0058] Optionally, the hardness of the tearing element 10 can be set slightly higher than that of the treatment device 30. This setting helps to prevent the treatment device 30 from bending during insertion.

[0059] A second aspect of this application also provides an endoscope handle, including the aforementioned guide structure for the endoscopic procedure instrument.

[0060] A third aspect of this application provides an endoscope including the aforementioned endoscope handle.

[0061] The endoscope used in this embodiment can be a bronchoscope, pyeloscope, esophagoscope, gastroscope, colonoscope, otoscope, rhinoscope, oral endoscope, laryngoscope, colposcope, laparoscope, arthroscope, etc. This embodiment does not impose specific limitations on the type of endoscope.

[0062] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0063] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A guiding structure for an endoscopic procedure instrument, characterized in that, include: A guide (100) may be fitted onto the distal end of the treatment device (30); The diameter of the distal end of the guide (100) is larger than the diameter of the instrument port (41) of the endoscope. During the insertion of the treatment instrument (30) into the endoscope, the guide (100) at least partially abuts against the instrument port (41) of the endoscope, and at least a portion of the guide (100) may tear as the treatment instrument (30) is inserted into the instrument port (41). The guide (100) includes a connector (20) and a tear member (10); The connector (20) is disposed at the distal end of the guide (100), the connector (20) is adapted to the instrument port (41) of the endoscope, and the connector (20) can abut against and connect to the instrument port (41) of the endoscope. At least a portion of the tear piece (10) is fitted onto the connector (20), and during the insertion of the treatment instrument (30) into the endoscope, the tear piece (10) can be torn from the distal end to the proximal end of the tear piece (10) under the action of the connector (20).

2. The guiding structure as described in claim 1, characterized in that, At least one side of the tearing member (10) is provided with a tearing groove (11), the tearing groove (11) extends along the axial direction of the tearing member (10), and the tearing member (10) can be torn along the position of the tearing groove (11).

3. The guiding structure as described in claim 2, characterized in that, The tearing member (10) has a tear opening (12) on at least one side of its distal end, and the proximal end of the tear opening (12) extends along the axial direction of the tearing member (10) to connect with the tear groove (11). During the insertion of the treatment instrument (30) into the endoscope, the connecting seat (20) abuts against the distal end of the tear opening (12) to tear the tearing member (10); or, the tearing member (10) has a compression port (13) on at least one side of its proximal end along the axial direction, and the distal end of the compression port (13) connects with the proximal end of the tear groove (11).

4. The guiding structure as described in claim 2 or 3, characterized in that, The dimension of the connector (20) located at one end inside the tear piece (10) is smaller than the dimension of the other end of the connector (20) that abuts against the instrument tip (40) of the endoscope.

5. The guiding structure as described in claim 3, characterized in that, The outer peripheral surface of the connector (20) is provided with a tear protrusion (21). During the insertion of the treatment instrument (30) into the endoscope, the tear protrusion (21) can abut against the distal end of the tear opening (12) to tear the tear piece (10).

6. The guiding structure as described in claim 1, characterized in that, The connecting seat (20) is provided with a first magnetic element (22) at its far end. The connecting seat (20) is aligned with the second magnetic element (42) at the end of the endoscope’s instrument mouth (40) by magnetic attraction through the first magnetic element (22).

7. The guiding structure as described in claim 1, characterized in that, The connecting seat (20) is also provided with an instrument channel (23), through which the treatment instrument (30) can pass into the instrument port (41), and the connecting seat (20) and the treatment instrument (30) are sealed together.

8. An endoscope handle, characterized in that, Includes the guiding structure of the endoscopic procedure instrument as described in any one of claims 1-7.

9. An endoscope, characterized in that, Includes the endoscope handle as described in claim 8.

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