A lifting structure, an operating handle, and an endoscope

Abstract

The present invention discloses a lifting structure, an operating handle, and an endoscope, which relate to the field of medical devices. The lifting structure is adapted to be installed in the operating handle of the endoscope. There is an instrument tube inside the operating handle. It is characterized in that the lifting structure has an inlet side and an outlet side that are far away from each other. The inlet side is used for introducing the instrument tube, and the outlet side is used for leading out the instrument tube. The lifting structure has a lifting part, and the lifting part is used for lifting at least part of the height of the instrument tube. The lifting structure can be arranged inside the operating handle, and the lifting part can increase the height of the instrument tube, that is, it provides support and lifting effects on the instrument tube. The lifting part can prevent the instrument tube from being bent and wrinkled, thereby eliminating the bending risk of the instrument tube and improving the use reliability and passing performance of the instrument tube. The instrument tube in the prior art may have misalignment in the vertical direction. However, under the lifting action of the lifting structure, there is redundancy in the instrument tube, and the redundantly arranged instrument tube can buffer the negative impacts brought by misalignment or pulling.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to a lifting structure, an operating handle, and an endoscope. Background Art

[0002] With the continuous development of medical technology, endoscopes have been widely used in the diagnosis and treatment of diseases. When using an endoscope, the insertion part of the endoscope needs to be inserted into the patient's body, and then a medical device is inserted into the instrument tube through the operating part of the endoscope. The medical device is inserted into the human body through the instrument tube to achieve the treatment effect.

[0003] However, in the prior art, a part of the instrument tube is built into the operating part, and the instrument tube is inserted through the through hole of the operating part so that the instrument tube can be connected to a multi-way connector or a suction valve. According to the structure and holding method of a conventional endoscope, the axial direction of the multi-way connector and the axial direction of the through hole suitable for inserting the instrument tube are different. Therefore, the instrument tube is configured in a bent state inside the operating part.

[0004] In the case of being impacted by external force or undergoing long-term fatigue deformation, the bent instrument tube is prone to bending, collapse, etc., resulting in the endoscope being unable to work properly and greatly increasing the surgical risk. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the related art, the present application provides a lifting structure, an operating handle, and an endoscope to solve the above technical problems.

[0006] The present application provides a lifting structure, which is suitable for being installed on the operating handle of an endoscope. The operating handle has an instrument tube inside. The lifting structure has an introduction side and an extraction side that are far away from each other. The introduction side is used to introduce the instrument tube, and the extraction side is used to extract the instrument tube. The lifting structure has a lifting part, and the lifting part is used to lift at least part of the height of the instrument tube.

[0007] In an embodiment of the present application, the lifting structure includes a limiting part, and the limiting part is used to constrain at least part of the instrument tube inside the operating handle so that the instrument tube is bent in the bending direction, and the bending direction is perpendicular to the lifting direction applied by the lifting part to the instrument tube.

[0008] In an embodiment of the present application, the limiting part is a constraint groove, and the constraint groove communicates with the introduction side and the extraction side. The constraint groove is used to install and constrain at least part of the instrument tube inside the operating handle so that the constraint groove is bent in the bending direction. The lifting part is at least part of the bottom of the constraint groove, and the height of at least part of the bottom of the constraint groove gradually increases to lift at least part of the height of the instrument tube.

[0009] In an embodiment of the present application, in the direction from the introduction side to the extraction side, the bending angle of the constraint groove is 40° - 70°.

[0010] In an embodiment of the present application, the included angle between the extending direction of the lifting part and the horizontal plane is 4° - 10°.

[0011] In an embodiment of the present application, the tangential direction of the constraint groove at the lead-out side intersects or is parallel to the axial direction of the through hole of the operating handle adapted to insert the instrument tube.

[0012] In an embodiment of the present application, the constraint groove includes a connecting section and a constraint section that communicate with each other. The lifting part is arranged in the constraint section. A step is arranged between the connecting section and the constraint section. The connecting section is located on the side of the constraint section close to the introduction side. The connecting section is used to install the multi-way joint of the operating handle.

[0013] In an embodiment of the present application, one end of the lifting structure close to the lead-out side is provided with an extending structure. The cross-sectional area of the extending structure is smaller than that of the lifting structure. The extending structure is located in the extending path of the instrument tube and is used to support or constrain the instrument tube.

[0014] In an embodiment of the present application, the lifting structure includes an opposite first surface and a second surface. The lifting part is arranged on the first surface. A fixing part is convexly provided on the second surface. The fixing part and the lifting part are distributed vertically. The fixing part is used to be installed on the operating handle so that the lifting structure is fixed in the operating handle.

[0015] To achieve the above object and other related objects, the present application provides an operating handle. The operating handle includes the aforementioned lifting structure, a housing, and a multi-way joint. The multi-way joint and the lifting structure are installed in the housing. The housing is provided with a through hole adapted to insert the instrument tube. The lifting structure is located between the through hole and the multi-way joint, and the lifting structure lifts the instrument tube.

[0016] In an embodiment of the present application, the height of the highest point of the lifting part is higher than the axis height of the through hole.

[0017] In an embodiment of the present application, the lifting structure and the housing are integrally arranged.

[0018] In an embodiment of the present application, the housing is further provided with a first installation groove suitable for installing a traction rope and / or a second installation groove suitable for installing a wire harness. When the lifting structure is installed in the housing, the lifting structure closes at least part of the first installation groove and / or at least part of the second installation groove.

[0019] In an embodiment of the present application, the housing includes a first housing and a second housing. The first housing and the second housing are detachably connected to form a receiving cavity. The lifting structure and the multi-way joint are arranged in the receiving cavity. The lifting structure is installed on the first housing. When the second housing is connected to the first housing, the second housing abuts against the lifting structure and makes the instrument tube abut against the lifting part.

[0020] To achieve the above and other related objectives, the present application provides an endoscope, which includes the aforementioned operating handle.

[0021] The technical solution adopted by the present invention can achieve the following beneficial effects: The lifting structure can be arranged inside the operating handle. The lifting structure has a lifting part, and the lifting part can increase the height of the instrument tube, that is, it provides support and lifting for the instrument tube. The lifting part can prevent the instrument tube from bending and wrinkling, thereby eliminating the bending risk of the instrument tube and improving the reliability and passing performance of the instrument tube. The instrument tube of the prior art may have misalignment in the vertical direction, but under the lifting effect of the lifting structure, there is redundancy in the instrument tube, and the redundantly arranged instrument tube can buffer the negative impacts brought by misalignment or pulling. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the lifting structure shown in an exemplary embodiment of the present application;

[0024] Figure 2 It is a schematic structural diagram of the endoscope shown in an exemplary embodiment of the present application;

[0025] Figure 3 It is a schematic structural diagram of the operating handle shown in an exemplary embodiment of the present application;

[0026] Figure 4 It is Figure 3 The enlarged view at position a in

[0027] Figure 5 It is a schematic structural diagram of another operating handle shown in an exemplary embodiment of the present application;

[0028] Figure 6 It is Figure 5 The enlarged view at position b in

[0029] Figure 7 It is a schematic structural diagram of the lifting structure from another perspective shown in an exemplary embodiment of the present application;

[0030] Figure 8 It is a schematic structural diagram of the instrument tube shown in an exemplary embodiment of the present application;

[0031] Figure 9It is a schematic structural diagram of another lifting structure shown in an exemplary embodiment of the present application;

[0032] Figure 10 It is a schematic structural diagram of the lifting structure from another perspective shown in an exemplary embodiment of the present application;

[0033] Figure 11 It is a schematic structural diagram of yet another lifting structure shown in an exemplary embodiment of the present application;

[0034] Figure 12 It is a schematic structural diagram of another instrument tube shown in an exemplary embodiment of the present application;

[0035] Figure 13 It is a schematic structural diagram of yet another lifting structure shown in an exemplary embodiment of the present application;

[0036] Figure 14 It is an exploded view of an operating handle shown in an exemplary embodiment of the present application.

[0037] In the figure: 1. Operating handle; 100. Lifting structure; 110. Introduction side; 120. Outlet side; 130. Limiting part; 140. Connection section; 141. Step; 150. Constraint section; 160. Extension structure; 170. First surface; 180. Second surface; 200. Housing; 210. Through hole; 220. Multi-way joint; 230. First mounting groove; 231. Traction rope; 240. Second mounting groove; 241. Wiring harness; 250. First housing; 260. Second housing; 270. Instrument joint; 280. Negative pressure suction valve; 290. Accommodation cavity; 300. Instrument tube; 400. Fixing part; 500. Lifting part; 2. Insertion part; 3. Endoscope. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0039] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0040] In the embodiments of this application, "proximal end" and "distal end" refer to the relative distances of each component from the user in the usage environment. Among them, 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".

[0041] According to the structure and holding method of a conventional endoscope, the axial direction of the multi-way joint and the axial direction of the through hole suitable for inserting the instrument tube are different. Therefore, the instrument tube is arranged in a bent state inside the operation part.

[0042] In the case of being impacted by an external force or undergoing long-term fatigue deformation, the instrument tube arranged in a bent state is prone to bending, collapse, etc. During the bending process, wrinkles will be generated on the upper and lower sides of the instrument tube, resulting in the collapse and failure of the channel inside the instrument tube, causing the endoscope to malfunction and greatly increasing the surgical risk.

[0043] This application provides a lifting structure 100. Please refer to Figure 1 and Figure 2 , and the lifting structure 100 is suitable for being installed on the operation handle 1 of the endoscope 3.

[0044] Please refer to Figure 3 and Figure 4 , and the operation handle 1 is connected to the proximal end of the insertion part 2 of the endoscope 3. The following content is referred to as the operation handle 1. Among them, please refer to Figure 4 , the operation handle 1 may include a lifting structure 100, a housing 200, and a multi-way joint 220. The lifting structure 100 and the multi-way joint 220 are arranged inside the housing 200, and the lifting structure 100 and the multi-way joint 220 are arranged opposite to each other.

[0045] Please refer to Figure 2 and Figure 3, the housing 200 can be made of metal, plastic or other materials, and this embodiment does not limit it. The housing 200 has a receiving cavity 290, and the lifting structure 100 and the multi-way joint 220 are installed in the receiving cavity 290. Further, the housing 200 can also have a mounting structure, which is arranged on the cavity wall forming the receiving cavity 290, and the lifting structure 100 and / or the multi-way joint 220 are detachably installed on the mounting structure. The housing 200 conforms to ergonomics and is convenient for users to hold. The housing 200 has a protective effect, which can prevent external forces from damaging the lifting structure 100 and the multi-way joint 220 and improve the use safety of the housing 200.

[0046] In some other cases, the lifting structure 100 is integrally provided with the housing 200. Further, the lifting structure 100 and the housing 200 are integrally formed, and the forming method can be injection molding, machining or the like. This setting can improve the connection tightness between the lifting structure 100 and the housing 200, and further improve the structural stability of the operating handle 1.

[0047] Please refer to Figure 3 , the multi-way joint 220 can be a three-way joint, a four-way joint or the like, and this embodiment does not limit it. The multi-way joint 220 is detachably arranged in the housing 200 of the operating handle 1, reducing the manufacturing difficulty of the operating handle 1 and improving the production efficiency of the operating handle 1.

[0048] In some other cases, the multi-way joint 220 can be connected to the housing 200, and the connection method between the multi-way joint 220 and the housing 200 can be bonding, welding or the like, improving the connection tightness between the multi-way joint 220 and the housing 200.

[0049] In one embodiment, please continue to refer to Figure 3 , the housing 200 is provided with a through hole 210, and the shapes and sizes of the through hole 210 and the instrument tube 300 are matched with each other, and the through hole 210 is adapted to insert the instrument tube 300. For example, one end of the instrument tube 300 extends to the insertion part 2 of the endoscope 3, and the other end is inserted into the through hole 210 and communicated with the multi-way joint 220. The operating handle 1 can also be provided with an instrument joint 270 and a negative pressure suction valve 280, and the instrument joint 270 and the negative pressure suction valve 280 are communicated with the multi-way joint 220. Through the setting of the multi-way joint 220, the instrument tube 300 can be communicated with the instrument joint 270 and the negative pressure suction valve 280, so that the treatment instrument can be inserted into the instrument tube 300 through the instrument joint 270, and the negative pressure suction valve 280 can suck the substances in the instrument tube 300. Among them, the treatment instruments include but are not limited to biopsy forceps, laser devices, etc.

[0050] Further, please refer to Figure 5 and Figure 6, the lifting structure 100 can be spaced apart from the through hole 210. The through hole 210 can also extend the traction rope 231 and the wire harness 241. The traction rope 231 is used to control the rotation direction of the insertion part 2, and the wire harness 241 is used to transmit the acquisition signal of the camera module of the insertion part 2. The spaced arrangement can prevent the lifting structure 100 from interfering with the traction rope 231 and the wire harness 241, so that the traction rope 231 and the wire harness 241 can extend out of the through hole 210, improving the use reliability of the operating handle 1.

[0051] In this embodiment, please refer back to Figure 1 and Figure 3 , the lifting structure 100 is located between the through hole 210 and the multi-way joint 220, and the lifting structure 100 can lift the instrument tube 300. Specifically, the lifting structure 100 has an introduction side 110 and an extraction side 120 that are far away from each other. The introduction side 110 is used to introduce the instrument tube 300. For example, the multi-way joint 220 is arranged on the introduction side 110 to introduce the instrument tube 300 from the multi-way joint 220 into the lifting structure 100. The extraction side 120 is used to extract the instrument tube 300. For example, the through hole 210 is arranged on the extraction side 120 to extract the instrument tube 300 from the lifting structure 100 to the through hole 210. The instrument tube 300 can extend from the introduction side 110 to the extraction side 120 and extend out of the housing 200 from the through hole 210.

[0052] Please refer to Figure 7 , the lifting structure 100 has a lifting part 500. The lifting part 500 can be a bump, a groove, a lifting rod, etc. Along the direction from the introduction side 110 to the extraction side 120, the height of the lifting part 500 can gradually increase. Alternatively, the height of the lifting part 500 can increase first and then decrease. The specific structure and size of the lifting part 500 are not limited in this embodiment.

[0053] In the existing endoscope 3, the axial direction of the multi-way joint 220 and the axial direction of the through hole 210 suitable for inserting the instrument tube 300 are different, which causes the instrument tube 300 to be arranged in a bent state inside the operation part. The channel inside the instrument tube 300 is also bent accordingly. During the rotation of the insertion part 2 or the insertion process of the instrument tube 300, the instrument tube 300 may move, and stress is concentrated inside the instrument tube 300, resulting in the instrument tube 300 being bent, and the channel inside the instrument tube 300 collapsing. During the bending process, the outer side of the instrument tube 300 gradually bulges, the inner side of the instrument tube 300 gradually depresses, and the upper and lower sides of the instrument tube 300 will gradually wrinkle. Furthermore, the instrument tube 300 is bent, and the channel inside the instrument tube 300 collapses and fails, causing the endoscope 3 to malfunction, greatly increasing the surgical risk. In this embodiment, the lifting part 500 is used to lift the height of at least part of the instrument tube 300 inside the operating handle 1. As Figure 8 shown, Figure 8The structural schematic diagram of the instrument tube 300 after being lifted by the lifting part 500 is shown. The lifting part 500 lifts the instrument tube 300, and the lifting direction of the lifting part 500 is perpendicular to the bending direction of the instrument tube 300. For example, when the instrument tube 300 bends in the horizontal plane, the lifting direction of the lifting part 500 is the vertical direction. Under the action of the lifting part 500, the instrument tube 300 deforms, and the instrument tube 300 will exert an elastic force on the lifting part 500, and the lifting part 500 will exert a supporting force on the instrument tube 300. The magnitudes of the elastic force and the supporting force are always the same, and the directions are opposite. In cases where the instrument tube 300 experiences misalignment, offset, etc., other acting forces appear on the instrument tube 300, and these other acting forces have a tendency to drive the instrument tube 300 to bend and wrinkle. However, the elastic force and the supporting force can eliminate the effect of the acting force. For example, when the direction of the acting force is the same as or approximately the same as the direction of the elastic force, the magnitude of the supporting force increases accordingly to simultaneously counteract the combined action of the acting force and the elastic force, thereby eliminating the tendency of the instrument tube 300 to bend and wrinkle. Furthermore, the lifting part 500 can prevent the instrument tube 300 from bending and wrinkling, thereby eliminating the bending risk of the instrument tube 300 and improving the use reliability and passability of the instrument tube 300.

[0054] The specific analysis is as follows. Please refer to Figure 8 , the lifting part 500 abuts against and lifts the instrument tube 300, and the lower side wall of the instrument tube 300 receives an upward supporting force (as shown by F1 in Figure 8 ), and the axis of the instrument tube 300 (as shown by L1 in Figure 8 ) is located in the direction of the application of the supporting force. Under the lifting action of the lifting structure 100, the upper side wall of the instrument tube 300 undergoes tensile deformation, and the upper side wall of the instrument tube 300 is subjected to the action of a downward elastic force (as shown by F2 in Figure 8 ), and the axis of the instrument tube 300 is located in the direction of the application of the elastic force. The lifting part 500 can cause the upper and lower side walls of the instrument tube 300 to be extruded towards its own axis direction, thereby avoiding the appearance of wrinkles on the upper and lower sides of the instrument tube 300, and further avoiding. It effectively prevents the instrument tube 300 from bending and wrinkling.

[0055] Under the action of the lifting structure 100, the instrument tube 300 will have an axial dislocation. The dislocation can be the relative movement of the instrument tube 300 in the axial direction. Specifically, the instrument tube 300 is bent. When inserting the treatment instrument, the treatment instrument is inserted into the bent portion of the instrument tube 300, and the treatment instrument will continue to be inserted along the tangent direction of the instrument tube 300 to abut against the tube wall of the instrument tube 300. As the instrument continues to be inserted, the instrument tube 300 will generate an axial dislocation. The lifting portion 500 of this embodiment can lift the instrument tube 300, and the instrument tube 300 generates an elastic force for restoring deformation. The relative displacement generated due to the dislocation of the instrument tube 300 can provide a certain space for the instrument tube 300 to restore deformation. Under the elastic force of the instrument tube 300, the instrument tube 300 eliminates the dislocation and continuously abuts against the lifting portion 500. The instrument tube 300 realizes abutting and limiting in the axial direction through the lifting structure 100, thereby preventing the dislocation problem.

[0056] In the prior art, the instrument tube 300 and the multi-way joint 220 are connected to each other. However, due to problems such as different materials between the two, the connection between the instrument tube 300 and the multi-way joint 220 is unstable and prone to falling off. In this embodiment, as Figure 8 shown, due to the lifting action of the lifting structure 100, both the upper side wall and the lower side wall of the instrument tube 300 have elastic forces or supporting forces towards both ends. At the connection between the instrument tube 300 and the multi-way joint 220, there is a pre-tightening force between the instrument tube 300 and the multi-way joint 220. The pre-tightening force is towards the direction close to the multi-way joint 220, so that the instrument tube 300 and the multi-way joint 220 are closely connected to avoid their detachment. In addition, the redundant setting can also eliminate the dislocation of the instrument tube 300, avoid the force generated due to the dislocation of the instrument tube 300 from being transmitted to the connection between the instrument tube 300 and the multi-way joint 220, and improve the connection effect between the instrument tube 300 and the multi-way joint 220.

[0057] The instrument tube 300 is configured in a bent state inside the operation part. However, when the treatment instrument is quickly inserted into the instrument tube 300, the treatment instrument may force the bent instrument tube 300 to further deform, and then situations such as bending and collapse may occur. Please refer to Figure 9 , the lifting structure 100 of this embodiment may include a limiting portion 130. The limiting portion 130 is used to restrict at least part of the instrument tube 300 in the operation handle 1 so that the instrument tube 300 is bent along the bending direction. When the instrument tube 300 is distributed along the bending direction, the angle change of the instrument tube 300 tends to be smooth, so that the treatment instrument can be easily inserted into the instrument tube 300. The limiting portion 130 can restrict the instrument tube 300 to be bent along the bending direction, and the limiting portion 130 can provide a supporting force for the instrument tube 300 to avoid situations such as deformation and collapse of the instrument tube 300, and improve the use safety of the instrument tube 300.

[0058] Among them, please refer to Figure 10 and Figure 11 , the bending direction is perpendicular to the lifting direction applied by the lifting part 500 to the instrument tube 300 (as shown by L2 in Figure 11 ). Exemplarily, the limiting part 130 can restrict the instrument tube 300 from bending in the horizontal direction, and the lifting part 500 lifts the instrument tube 300 in the vertical direction. As shown in Figure 12 , the limiting part 130 can make the extending direction of the instrument tube 300 in the horizontal direction arc-shaped. As shown in Figure 8 , the lifting part 500 can make the extending direction of the instrument tube 300 in the vertical direction arc-shaped. The limiting part 130 and the lifting part 500 act on the instrument tube 300 in different directions, further reducing the risk of the instrument tube 300 being bent and wrinkled, and helping to maintain the shape and position of the instrument tube 300.

[0059] The specific analysis is as follows. Please refer to Figure 12 , the limiting part 130 restricts the instrument tube 300 to be bent. Exemplarily, in the horizontal plane, the instrument tube 300 is bent, and the inner bent wall of the instrument tube 300 is subjected to an extrusion force towards the outside (as shown by F3 in Figure 12 ), and the axis of the instrument tube 300 (as shown by L1 in Figure 12 ) is located in the direction of the application of the extrusion force. The opposite ends of the instrument tube 300 are fixed. Under the restraint of the limiting part 130, the outer wall of the instrument tube 300 is subjected to a tensile force towards the inside (as shown by F4 in Figure 12 ), and the outer bent wall of the instrument tube 300 undergoes tensile deformation, and the axis of the instrument tube 300 is located in the direction of the application of the tensile force. Under the action of the limiting part 130, the lifting part 500 can make both the outer wall and the inner wall of the instrument tube 300 be extruded towards the direction of its own axis, effectively avoiding the instrument tube 300 from being bent and wrinkled. Under the combined action of the limiting part 130 and the lifting part 500, all around the instrument tube 300 is subjected to a force towards the direction of its own axis, effectively avoiding the occurrence of the situation that the instrument tube 300 is bent and wrinkled, and improving the use safety of the instrument tube 300.

[0060] In a specific implementation manner, please refer back to Figure 10 and Figure 11, the limiting part 130 can be a restraining groove. The restraining groove communicates with the introducing side 110 and the leading-out side 120. The restraining groove can provide a smooth and restricted channel for the instrument tube 300. Further, the limiting part 130 can be the groove wall of the restraining groove. The restraining groove is used to install and restrain at least part of the instrument tube 300 within the operating handle 1 so that the restraining groove is bent along the bending direction. The restraining groove can provide more precise and reliable restraint and positioning for the instrument tube 300. The restraining groove can have an opening, and the instrument tube 300 can be quickly installed into the restraining groove from the opening, facilitating the assembly operation for the assembler. The groove wall forming the restraining groove can effectively restrain the instrument tube 300. The restraint setting is not limited to the restriction in the bending direction of the instrument tube 300, but also includes the restrictions in its radial and axial directions. For example, the restraining groove increases the contact area between the lifting structure 100 and the instrument tube 300, so that the restraining groove hinders the instrument tube 300 from sliding axially, thereby ensuring the stability and reliability of the instrument tube 300 during the operation.

[0061] Please refer to Figure 11 , the lifting part 500 can be at least part of the groove bottom of the restraining groove, and the height of at least part of the groove bottom of the restraining groove gradually increases to lift the height of at least part of the instrument tube 300. This setting can enable the instrument tube 300 to be gradually lifted when passing through the restraining groove. This setting can enable the instrument tube 300 to be constrained by the groove wall of the restraining groove, and the instrument tube 300 can be lifted by the groove bottom of the restraining groove. The restraining groove can perform position-limiting in two different directions, which not only helps to maintain the shape and position of the instrument tube 300, but also can reduce the friction and wear during the operation to a certain extent and extend the service life of the instrument tube 300.

[0062] In another embodiment, please refer back to Figure 4 , the tangential direction of the restraining groove at the leading-out side 120 (as shown by L3 in Figure 4 ) intersects or is parallel to the axial direction of the through hole 210 (as shown by L4 in Figure 4 ). In other words, the tangential direction of the restraining groove at the leading-out side 120 is not collinear with the axial direction of the through hole 210. This setting can enable the instrument tube 300 between the lifting structure 100 and the through hole 210 to be bent, and there is redundancy in the part of the instrument tube 300 between the lifting structure 100 and the through hole 210. The redundantly arranged instrument tube 300 can buffer the negative impacts brought by misalignment or pulling.

[0063] In this embodiment, please refer to Figure 13 , in the direction from the introducing side 110 to the leading-out side 120, the bending angle of the restraining groove can be 40° - 70°, such as 40°, 50° or 70°, etc., and this embodiment does not limit it. Among them, this bending angle can be the axial direction of the restraining groove at the leading-out side 120 (as shown by Figure 13as shown by L5 in [reference], and the axial angle α between the constraint groove at the introduction side 110 (as shown by L6 in [reference]). The bending angle of the constraint groove should not be set too large or too small. If the bending angle is set too large, the instrument tube 300 may be bent excessively, making it difficult for the treatment instrument to be inserted into the instrument tube 300. If the bending angle is set too small, the constraint groove is difficult to adapt to the angle between the multi-pass joint 220 and the through hole 210, making it difficult to install the instrument tube 300 in the handle. This setting can configure an appropriate bending angle for the constraint groove, which can not only improve the passability of the instrument tube 300 but also adapt to the multi-pass joint 220 and the through hole 210 of the operating handle 1, facilitating assembly and improving the assembly efficiency of the endoscope 3. Figure 13 In another embodiment, referring back to

[0064] Figure 11 Figure 11 Figure 11 Figure 11

[0065] Figure 3 Figure 3 Figure 10 Figure 10

[0066] The lifting part 500 is arranged in the constraint section 150. The constraint section 150 can lift the instrument tube 300 to avoid deformation and collapse of the instrument tube 300, etc., and improve the use safety of the instrument tube 300. A step 141 is arranged between the connection section 140 and the constraint section 150, and the connection section 140 is located on the side of the constraint section 150 close to the introduction side 110. When the multi-way joint 220 and the connection section 140 are connected to each other, the step 141 can abut against the multi-way joint 220. This abutment not only provides stable support but also prevents relative sliding between the multi-way joint 220 and the lifting structure 100.

[0067] Preferably, one end of the constraint section 150 close to the step 141 is chamfered. The chamfered constraint section 150 can play a guiding role so that the instrument tube 300 can be more easily installed in the constraint section 150.

[0068] It can be understood that the limiting part 130 can also be arranged in the constraint section 150. The limiting part 130 can play a limiting role on the instrument tube 300 installed in the constraint section 150, and will not be elaborated here too much.

[0069] In one embodiment, please continue to refer to Figure 7 , one end of the lifting structure 100 close to the lead-out side 120 is provided with an extension structure 160. For example, the extension structure 160 can be a convex block, and the convex block protrudes from the lifting structure 100. The extension structure 160 is located in the extension path of the instrument tube 300, and the extension structure 160 is used to support or constrain the instrument tube 300. For example, the constraint groove can extend to the surface of the extension structure 160, and the extension structure 160 can provide continuous support or constraint for the instrument tube 300 to ensure that the instrument tube 300 can move smoothly along the predetermined path without deviation or shaking. The cross-sectional area of the extension structure 160 is smaller than that of the lifting structure 100. The extension structure 160 with a smaller cross-sectional area is lighter and can be arranged in a wider range of scenarios. This setting can effectively avoid possible wire harnesses 241, traction ropes 231, etc. in the limited space of the housing 200. In a complex operating environment, this setting increases the flexibility and convenience of the design.

[0070] It can be understood that at least part of the limiting part 130 and / or the lifting part 500 can be arranged in the extension structure 160 to further improve the effective lifting range of the limiting part 130 and / or the lifting part 500 and improve the use effect of the positioning structure, and will not be elaborated here too much.

[0071] In this embodiment, please refer to Figure 7, the lifting structure 100 may include opposite first surface 170 and second surface 180. The lifting portion 500 is disposed on the first surface 170, and the second surface 180 is convexly provided with a fixing portion 400. The fixing portion 400 is used to be mounted on the operating handle 1 so that the lifting structure 100 is fixed within the operating handle 1. The fixing portion 400 can fix the lifting structure 100 and the housing 200 to each other, preventing the lifting structure 100 from detaching from the housing 200 and improving the safety of using the operating handle 1. Exemplarily, the fixing portion 400 may include a first fixing block and a second fixing block, and the housing 200 has a mounting structure. The first fixing block and the second fixing block cooperate with each other and clamp the mounting block so that the fixing portion 400 can be stably mounted on the housing 200. In some other cases, the limiting portion 130 may also be disposed on the first surface 170, which will not be elaborated here.

[0072] The fixing portion 400 and the lifting portion 500 are distributed vertically, that is, the fixing portion 400 and the lifting portion 500 form a vertically distributed relationship in space. This setting can separate the fixing portion 400 and the lifting portion 500 from each other to avoid interference. In addition, the fixing portion 400 can also improve the structural stability of the lifting portion 500. Exemplarily, the lifting portion 500 may be a constraint groove. The constraint groove is recessed, and the fixing portion 400 is convexly provided. The constraint groove and the fixing portion 400 are located in the same vertical direction. The fixing portion 400 can increase the cross-sectional area of the lifting structure 100 and eliminate the influence of the constraint groove on the structural strength of the lifting structure 100.

[0073] When the axis of the through hole 210 is higher than the lifting portion 500, an unnecessary gap may be generated between the instrument tube 300 between the through hole 210 and the multi-way joint 220 and the lifting portion 500. This gap may cause the lifting effect of the lifting portion 500 to fail and increase the possibility of bending and wrinkling of the instrument tube 300. Please refer to Figure 7 , the height of the highest point of the lifting portion 500 in this embodiment is higher than the axis height of the through hole 210. This setting can ensure that the highest point of the lifting portion 500 exceeds the axis of the through hole 210. Even if the positions of the through hole 210 or the multi-way joint 220 are offset, the lifting portion 500 can always maintain close contact with the instrument tube 300. This setting allows the lifting portion 500 to exert a continuous and stable force on the instrument tube 300, effectively eliminating the gap problem caused by position changes and improving the safety of using the instrument tube 300.

[0074] In this embodiment, please refer back to Figure 6, the housing 200 is further provided with a first mounting groove 230 and / or a second mounting groove 240. The first mounting groove 230 is adapted to mount the towing rope 231, and the second mounting groove 240 is adapted to mount the wire harness 241. When the lifting structure 100 is mounted on the housing 200, the lifting structure 100 closes at least part of the first mounting groove 230 and / or at least part of the second mounting groove 240. The lifting structure 100 can close or semi-close the first mounting groove 230 and the second mounting groove 240. This setting ensures the relative independence of components such as the wire harness 241, the towing rope 231, and the instrument tube 300 within the housing 200. Each component within the operating handle 1 is effectively isolated, avoiding interference and entanglement with each other, thereby improving the operating efficiency and reliability of the overall system.

[0075] In this embodiment, please refer to Figure 14 , the housing 200 may include a first housing 250 and a second housing 260. The first housing 250 and the second housing 260 are detachably connected to form a receiving cavity 290. The lifting structure 100 and the multi-way joint 220 are disposed within the receiving cavity 290. Exemplarily, during the assembly process, the installer can first separate the first housing 250 and the second housing 260, and the lifting structure 100 and the multi-way joint 220 can be more accurately mounted in the first housing 250. The first housing 250 and the second housing 260 are detachably mounted to form a relatively enclosed receiving cavity 290. The detachable setting can improve the assembly efficiency of the operating handle 1 and also reduce the later replacement cost.

[0076] The lifting structure 100 can be mounted on the first housing 250. When the second housing 260 is connected to the first housing 250, the second housing 260 abuts against the lifting structure 100 and causes the instrument tube 300 to abut against the lifting portion 500. The second housing 260 abuts against the lifting structure 100, which can fix the lifting structure 100 within the housing 200 and improve the stability and reliability of the lifting structure 100. Furthermore, when the second housing 260 abuts against the lifting structure 100 and the lifting portion 500 abuts against the instrument tube 300, the lifting portion 500 can continuously lift the instrument tube 300 to prevent the instrument tube 300 from being bent or wrinkled. This means that no matter how the instrument tube 300 moves or is stressed during use, it can maintain a lifted state, significantly improving the use effect of the lifting structure 100. In addition, the second housing 260 can abut against the limiting portion 130, which can also limit the direct contact between the instrument tube 300 and the lifting structure 100. For example, the lifting structure 100 may include a constraint groove, and the instrument tube 300 is disposed in the constraint groove. When the second housing 260 abuts against the lifting structure 100, the second housing 260 closes or semi-closes the constraint groove so that at least part of the instrument tube 300 is always within the constraint groove.

[0077] In some other cases, the second housing 260 may also be provided with a recess, which is correspondingly arranged with the lifting portion 500. The first housing 250 and the second housing 260 are detachably installed, and the recess and the lifting portion 500 cooperate with each other to make the instrument tube 300 closely fit with the lifting portion 500, further improving the use effect of the lifting structure 100.

[0078] To achieve the above and other related purposes, the present application provides an operating handle 1. Please refer back to Figure 2 , the operating handle 1 may include the aforementioned lifting structure 100. In this way, the operating handle 1 has the beneficial effects of any of the foregoing solutions, which will not be elaborated here.

[0079] To achieve the above and other related purposes, the present application provides an endoscope 3. Please refer back to Figure 2 , the endoscope 3 may include the aforementioned operating handle 1. In this way, the endoscope 3 has the beneficial effects of any of the foregoing solutions, which will not be elaborated here. The endoscope 3 may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a nasal speculum, an oral speculum, a laryngoscope, a vaginoscope, a laparoscope, an arthroscope, etc. The embodiments of the present application do not specifically limit the types of the endoscope 3.

[0080] The technical solution adopted by the present invention can achieve the following beneficial effects: The lifting structure 100 can be installed in the operating handle 1. The lifting structure 100 has a lifting portion 500, and the lifting portion 500 can increase the height of the instrument tube 300, that is, it provides support and lifting for the instrument tube 300. The lifting portion 500 can prevent the instrument tube 300 from being bent and wrinkled, thereby eliminating the bending risk of the instrument tube 300 and improving the use reliability and passing performance of the instrument tube 300. Under the action of the lifting structure 100, the instrument tube 300 will have a misalignment in the vertical direction. When the instrument tube 300 is lifted, the instrument tube 300 will also have redundancy. The redundant instrument tube 300 can buffer the negative impacts caused by misalignment or pulling.

[0081] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0082] In addition, it should be noted that the scope of the methods and apparatuses 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 the 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. Additionally, the features described with reference to certain examples may be combined in other examples.

[0083] As described above, the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. A lifting structure, the lifting structure is suitable for being installed on an operating handle of an endoscope, the operating handle has an instrument tube inside, characterized in that: The lifting structure has an introduction side and an exit side that are far away from each other, the introduction side is used to introduce the instrument tube, and the exit side is used to lead out the instrument tube. The lifting structure has a lifting portion, and the lifting portion is used to lift the height of at least part of the instrument tube and squeeze the instrument tube in the lifting direction so that the upper side wall and the lower side wall of the instrument tube are squeezed toward the axial direction of the instrument tube to eliminate the collapse of the instrument tube.

2. The lifting structure according to claim 1, characterized in that: The lifting structure includes a limiting portion, which is used to constrain at least part of the instrument tube in the operating handle so that the instrument tube is bent along a bending direction, and the bending direction and the lifting direction applied to the instrument tube by the lifting portion are perpendicular to each other.

3. The lifting structure according to claim 2, characterized in that: The limiting portion is a constraint groove, which connects the introduction side and the outlet side. The constraint groove is used to install and constrain at least part of the instrument tube in the operating handle so that the constraint groove is bent along the bending direction. The lifting portion is at least part of the bottom of the constraint groove, and the height of at least part of the bottom of the constraint groove gradually increases to lift the height of at least part of the instrument tube.

4. The lifting structure according to claim 3, characterized in that: In the direction from the introduction side to the lead-out side, the bending angle of the constraint groove is 40°-70°; And / or, the angle between the extension direction of the lifting portion and the horizontal plane is 4°-10°; And / or, a tangential direction of the restraining groove at the lead-out side intersects or is parallel to an axial direction of the through hole of the operating handle that is suitable for inserting an instrument tube.

5. The lifting structure according to claim 3, characterized in that: The constraint groove includes a connecting section and a constraint section that are interconnected, the lifting portion is arranged in the constraint section, a step is arranged between the connecting section and the constraint section, the connecting section is located on the side of the constraint section close to the introduction side, and the connecting section is used to install the multi-way joint of the operating handle.

6. The lifting structure according to any one of claims 1 to 5, characterized in that: An extension structure is provided at one end of the lifting structure close to the lead-out side, the cross-sectional area of ​​the extension structure is smaller than that of the lifting structure, the extension structure is located in the extension path of the instrument tube, and is used to support or constrain the instrument tube; And / or, the lifting structure includes a first surface and a second surface opposite to each other, the lifting portion is arranged on the first surface, the second surface is protrudingly provided with a fixing portion, the fixing portion and the lifting portion are distributed vertically, and the fixing portion is used to be installed on the operating handle so that the lifting structure is fixed in the operating handle.

7. An operating handle, characterized in that: The operating handle includes a lifting structure, a shell and a multi-way connector as described in any one of claims 1 to 6, the multi-way connector and the lifting structure are installed in the shell, the shell is provided with a through hole suitable for inserting an instrument tube, the lifting structure is located between the through hole and the multi-way connector, and the lifting structure lifts the instrument tube.

8. The operating handle according to claim 7, characterized in that: The height of the highest point of the lifting portion is higher than the height of the axis of the through hole; And / or, the lifting structure is integrated with the shell.

9. The operating handle according to claim 7, characterized in that: The housing is further provided with a first mounting groove for mounting a traction rope and / or a second mounting groove for mounting a wiring harness, and when the lifting structure is mounted on the housing, the lifting structure closes at least a portion of the first mounting groove and / or at least a portion of the second mounting groove; And / or, the shell includes a first shell and a second shell, the first shell and the second shell are detachably connected to form a accommodating cavity, the lifting structure and the multi-way connector are arranged in the accommodating cavity, the lifting structure is installed on the first shell, and when the second shell is connected to the first shell, the second shell abuts against the lifting structure and makes the instrument tube abut against the lifting part.

10. An endoscope, characterized in that: The endoscope comprises an operating handle as described in any one of claims 7-9.

Images