A fixing seat, an endoscope handle, an endoscope and a mounting method thereof

Abstract

This invention discloses a mounting base, an endoscope handle, an endoscope, and a method for installing the same, relating to the field of medical device technology. The mounting base of this invention is used on the handle of an endoscope. The mounting base includes a base and sidewalls. The base is located at the distal end of the handle's housing, and the sidewalls are located on opposite sides of the base, forming a fixing groove between the base and the sidewalls. The fixing groove is used to install the proximal end of the endoscope's insertion part. A notch is provided on the sidewall, penetrating the sidewall and communicating with a mounting hole located on the sidewall. The notch is used to guide adhesive from the fixing groove into the mounting hole. The mounting base of this invention, by guiding adhesive from the fixing groove into the mounting hole through the notch on the sidewall, achieves a fixed connection between the pin and the mounting hole using adhesive. This not only reduces the requirements for housing manufacturing precision and simplifies the assembly difficulty of the upper and lower housings but also improves the strength and damage resistance of the distal end of the handle.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a fixation base, an endoscope handle, an endoscope, and a method for installing the same. Background Technology

[0002] An endoscope is a commonly used medical device that can directly enter human cavities for examination, providing doctors with comprehensive diagnostic information. An endoscope typically includes: an insertion part for insertion into the body, a handle for controlling the bending of the insertion part's tip, and a display device for showing the internal environment of the body's natural cavities. Through the coordination of these three parts, an endoscope can achieve visualization of the human body's interior, exploration of lesions, and treatment.

[0003] In related technologies, the handle housing is divided into an upper housing and a lower housing. To ensure the reliability of the housing connection, the upper and lower housings are assembled by inserting pins into mounting holes. Typically, the pins and mounting holes are interference-fitted. Furthermore, multiple mounting holes and pins are provided on both sides of the housing along its axial direction. When assembling the upper and lower housings, it is necessary to align each pin with the mounting hole and ensure an interference fit. This not only requires high manufacturing precision for the housings but also makes the assembly of the upper and lower housings difficult.

[0004] On the other hand, related technologies also include a fixing seat inside the handle housing. The fixing seat supports the proximal end of the insertion part, and the proximal end of the insertion part is fixedly connected to the fixing seat with adhesive. In order to reliably fix the proximal end of the insertion part inside the handle housing, a sufficient amount of adhesive is usually applied to the outer periphery of the insertion part and the fixing seat, and the outer periphery of the insertion part is fixedly connected to the fixing seat with sufficient adhesive.

[0005] However, the inventors discovered that using too much adhesive can cause some of it to be squeezed or flow into the mounting holes on the side of the mounting base. Once the adhesive in these holes hardens, it occupies space within the mounting holes, resulting in excessive resistance when the upper and lower housings are assembled. This can easily damage the pins and further complicate the assembly process. Therefore, providing an endoscope with an easy-to-assemble handle housing is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] This invention discloses a mounting base, an endoscope handle, an endoscope, and an installation method thereof, in order to solve the technical problem in related technologies where the interference fit between the pin and the mounting hole causes some of the adhesive to flow into the mounting hole and solidify when the proximal end of the insertion part is fixed to the mounting base with adhesive, which exacerbates the difficulty of assembling the pin and the mounting hole.

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] The first aspect of the present invention provides a mounting base.

[0009] The present invention provides a mounting base for an endoscope handle. The mounting base includes a base and sidewalls. The base is located at the distal end of the handle housing, and the sidewalls are located on opposite sides of the base, forming a mounting groove between the base and the sidewalls. The mounting groove is used to mount the proximal end of the endoscope insertion portion. A notch is provided on the sidewall, penetrating the sidewall and communicating with a mounting hole located on the sidewall. The notch is used to guide adhesive from the mounting groove into the mounting hole.

[0010] Furthermore, the width of the notch is 2mm to 4mm along the axial direction of the handle.

[0011] Furthermore, the sidewall is fixedly connected to the mounting hole of the housing, and the sidewall connected to the mounting hole, the sidewall on both sides of the notch has a first arc-shaped structure.

[0012] Furthermore, the base is provided with multiple empty slots, which are spaced apart.

[0013] Furthermore, multiple protrusions are formed on the inner surface of the sidewall.

[0014] Furthermore, there is a gap between the distal end of the sidewall and the adapter of the insertion part, and a stepped structure is provided on the distal end face of the sidewall. The distal corner of the sidewall is a second arc-shaped structure, which extends to the stepped structure.

[0015] A second aspect of the invention provides an endoscope handle.

[0016] The endoscope handle of the present invention includes a housing and a fixing seat, wherein the housing has a receiving cavity, and the fixing seat is the fixing seat described in any of the technical solutions of the present invention, and the fixing seat is located within the receiving cavity.

[0017] Furthermore, the housing includes a first housing and a second housing, one of the first housing and the second housing is provided with a mounting hole, and the other of the first housing and the second housing is provided with a pin. The mounting hole and the pin are in clearance fit, and the height of the mounting hole is greater than the height of the pin.

[0018] A third aspect of the invention provides an endoscope.

[0019] The endoscope of the present invention includes a handle and an insertion part, wherein the handle is an endoscope handle as described in any of the technical solutions of the present invention, the proximal end of the insertion part is mounted on a fixing seat inside the handle, and the proximal end of the insertion part is fixedly connected to the fixing seat by adhesive bonding.

[0020] A fourth aspect of the present invention provides a method for assembling an endoscope.

[0021] The assembly method of the endoscope of the present invention, based on the endoscope described in any one of the technical solutions of the present invention, includes at least the following steps:

[0022] Pour a preset amount of adhesive into the fixing seat, and guide the adhesive in the fixing groove into the mounting hole through the notch;

[0023] The proximal end of the insertion part is installed in the fixing groove of the fixing seat;

[0024] Observe whether the adhesive in the fixing seat and the notch is full, and based on the observation results, inject adhesive into the fixing groove and / or the notch to make the adhesive in the fixing groove and the notch full;

[0025] Insert the pin into the mounting hole and use the adhesive in the mounting hole to fix the pin to the mounting hole.

[0026] The technical solution adopted in this invention can achieve the following beneficial effects:

[0027] Firstly, the fixing base of the present invention has a notch on its side wall, which penetrates the side wall and communicates with a mounting hole located on the side wall. When the outer periphery of the insertion part is fixedly connected to the fixing base with adhesive, the notch on the side wall can guide the adhesive in the fixing groove into the mounting hole, thereby using the adhesive in the mounting hole to achieve a fixed connection between the pin and the mounting hole. The pin and the mounting hole are fixedly connected by adhesive. In this connection method, the size of the mounting hole can be larger than the pin, and the pin and the mounting hole are in a clearance fit. Compared with an interference fit, a clearance fit makes it easier for the pin to be inserted into the mounting hole, and the pin experiences less resistance. This not only reduces the requirements for the manufacturing precision of the housing but also reduces the assembly difficulty of the upper and lower housings.

[0028] The fixing base of the present invention guides the adhesive in the fixing groove to the mounting hole through the notch on the side wall. The adhesive can be used to fix the pin to the mounting hole, which solves the technical problem in the related technology where the pin and the mounting hole are too close together, and when the proximal end of the insertion part is fixed to the fixing base with adhesive, some adhesive flows into the mounting hole and solidifies, which increases the difficulty of assembling the pin and the mounting hole.

[0029] Secondly, the fixing seat of the present invention has a notch on its side wall. By guiding the adhesive in the fixing groove into the mounting hole, the pin is fixedly connected to the mounting hole using the adhesive in the mounting hole. After the adhesive cures, not only does the adhesive at the notch form a limiting structure to limit the axial direction of the insertion part, but it also enhances the reliability of the connection between the insertion part and the fixing seat when the insertion part and / or the handle are subjected to axial force. Moreover, the adhesive on the proximal outer wall of the insertion part, inside the fixing groove, at the notch, and inside the mounting hole can be used as a whole to bond the proximal end of the insertion part, the fixing seat, the pin, and the mounting hole together, resulting in better structural integrity, more reliable connection, and greatly improved strength and damage resistance of the distal end of the handle.

[0030] Thirdly, the fixing seat of the present invention has a notch on its side wall. When the handle housing is formed by injection molding, the notch on the side wall helps to reduce the accumulation of internal stress during the curing of the injection plastic and also helps to release heat more evenly during the curing of the injection plastic. This reduces the shrinkage rate of the injection plastic during curing, thereby reducing the possibility of deformation of the fixing seat and the mounting hole. This improves the installation accuracy of the near end of the insertion part and further reduces the assembly difficulty of the pin and the mounting hole. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the endoscope used in an embodiment of this application;

[0033] Figure 2 This is a partial schematic diagram of the endoscope in an embodiment of this application;

[0034] Figure 3 yes Figure 2 Enlarged view of section A;

[0035] Figure 4 This is a first schematic diagram of the first housing according to an embodiment of this application;

[0036] Figure 5 yes Figure 4 Enlarged view of section B;

[0037] Figure 6 This is a second schematic diagram of the first housing according to an embodiment of this application;

[0038] Figure 7 yes Figure 6 Enlarged view of section C;

[0039] Figure 8 This is a schematic diagram of the second housing in an embodiment of this application.

[0040] In the diagram: 100, fixed seat; 110, base; 111, slot; 120, side wall; 121, notch; 122, first arc-shaped structure; 123, protrusion; 124, stepped structure; 125, second arc-shaped structure; 130, fixed slot; 140, gap; 200, handle; 210, housing; 210a, first housing; 210b, second housing; 211, mounting hole; 212, receiving cavity; 213, pin; 214, instrument channel; 215, suction channel; 216, limiting part; 300, insertion part; 310, adapter. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0042] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0043] In the various embodiments of this application, "near end" and "far end" refer to the distance of each component from the user in the usage environment. The end closer to the user is designated as the "near end", and the end farther from the user is designated as the "far end".

[0044] In related technologies, the mounting base is connected to the mounting hole of the lower housing of the handle, and the upper housing of the handle is also provided with a pin. Inserting the pin into the mounting hole connects the upper and lower housings. Furthermore, the insertion part is a multi-lumen tube. Compared to insertion tubes covered with braided mesh and heat-shrink film, multi-lumen tubes are softer, thus requiring higher adhesive bonding standards and a sufficient amount of adhesive to bond the multi-lumen tube to the mounting base. When the outer periphery of the insertion part is fixedly connected to the mounting base with sufficient adhesive, some adhesive inside the mounting base may be squeezed or flow into the mounting hole on the side of the mounting base (due to the limited size of the distal end of the handle, the mounting hole is usually located close to the mounting base), causing adhesive overflowing from the mounting base baffle to enter the mounting hole. The adhesive used in related technologies is usually UV adhesive. UV adhesive cures quickly; after the adhesive flows into the mounting hole and cures, it will cause excessive resistance when the pin on the handle housing mates with the mounting hole, easily damaging the pin and further increasing the difficulty of assembling the pin with the mounting hole.

[0045] To address this, this application provides a mounting base with a notch on its side wall. Through this notch, adhesive on the mounting base can be guided into the mounting hole, thereby enabling the pin to be fixedly connected to the mounting hole using the adhesive. In this connection method, the size of the mounting hole can be larger than the pin, and the pin and the mounting hole are clearance fit, which can reduce the requirements for the manufacturing precision of the housing and reduce the assembly difficulty of the upper and lower housings.

[0046] The following is in conjunction with the appendix Figures 1 to 8 The present application provides a detailed description of the mounting base, endoscope handle, endoscope, and installation method provided in the embodiments of this application through specific implementation methods and application scenarios.

[0047] The first aspect of this embodiment describes the mounting base in detail.

[0048] The mounting base in this embodiment is used on the handle 200 of the endoscope. Specifically, the mounting base is located inside the handle 200 of the endoscope and is used to support and fix the proximal end of the insertion part 300 of the endoscope. Preferably, the proximal end of the insertion part 300 is fixedly connected to the mounting base by adhesive bonding.

[0049] The adhesive used in this embodiment is a slow-drying adhesive, which is relative to fast-drying adhesives (such as UV adhesives, whose curing time is tens of seconds). Slow-drying adhesives are adhesives with a longer curing time. For example, the slow-drying adhesive used in this embodiment can be an epoxy resin slow-drying adhesive, a light-curing slow-drying adhesive, a water-based slow-drying adhesive, an acrylic slow-drying adhesive, a hot-melt slow-drying adhesive, etc. The curing time of slow-drying adhesives is usually tens of minutes.

[0050] The fixing base in this embodiment includes a base 110 and a side wall 120, such as... Figure 4 and Figure 5As shown. Exemplarily, the base 110 and sidewall 120 are an integral structure. The base 110 is located at the distal end of the housing 210 of the handle 200, and the sidewalls 120 are located on opposite sides of the base 110. The sidewalls 120 are higher than the base 110, forming a fixing groove 130 between the base 110 and the sidewalls 120. The fixing groove 130 is used to install the proximal end of the endoscope insertion portion 300, such as... Figures 2-7 As shown. After the proximal end of the insertion part 300 is installed in the fixing groove 130, the channel of the insertion part 300 communicates with the instrument channel 214 and the suction channel 215 in the housing 210, thereby allowing for instrument insertion, negative pressure suction, and other operations via the endoscope. Figure 2 and Figure 3 As shown.

[0051] Preferably, a notch 121 is provided on the side wall 120, the notch 121 penetrates the side wall 120 and communicates with the mounting hole 211 located on the side wall 120, and the notch 121 is used to guide the adhesive in the fixing groove 130 into the mounting hole 211, such as Figures 2-7 As shown.

[0052] like Figures 2-7 As shown, along the thickness direction of the sidewall 120, the notch 121 extends to the mounting hole 211 of the housing 210, which facilitates the adhesive squeezed out from the fixing groove 130 to enter the top surface of the mounting hole 211 and thus enter the mounting hole 211, preventing the adhesive from overflowing from the walls on both sides of the notch 121.

[0053] More preferably, the width of the notch 121 along the axial direction of the handle 200 is 2mm to 4mm. For example, the width of the notch 121 is 2mm, 2.5mm, 3mm, 3.5mm, or 4mm. Since the adhesive is viscous and has poor fluidity, in this embodiment, the width of the notch 121 of the fixing seat is 2 to 4mm. This width ensures that the adhesive in the fixing groove 130 can be guided from the notch 121 into the mounting hole 211, avoiding the problem that if the width of the notch 121 is too small, the adhesive will connect with the walls on both sides of the notch 121 due to its own tension and form a barrier, preventing the adhesive from overflowing from the notch 121.

[0054] In this embodiment, when the outer periphery of the insertion part is fixedly connected to the fixing base with adhesive, the notch 121 on the side wall 120 can guide the adhesive in the fixing groove 130 into the mounting hole 211, thereby using the adhesive in the mounting hole 211 to achieve a fixed connection between the pin 213 and the mounting hole 211. The pin 213 and the mounting hole 211 are fixedly connected by adhesive. In this connection method, the size of the mounting hole 211 can be larger than that of the pin 213. The pin 213 and the mounting hole 211 are in clearance fit. Compared with the interference fit, the clearance fit makes it easier for the pin 213 to be inserted into the mounting hole 211. The pin 213 experiences less resistance, which not only reduces the requirements for the manufacturing precision of the housing, but also reduces the assembly difficulty of the upper and lower housings. This solves the technical problem in related technologies where the pin 213 and the mounting hole 211 are in interference fit, and when the proximal end of the insertion part is fixed to the fixing seat with adhesive, some adhesive flows into the mounting hole 211 and solidifies, which exacerbates the assembly difficulty of the pin 213 and the mounting hole 211.

[0055] On the other hand, in this embodiment, the fixing seat has a notch 121 on the side wall 120. By guiding the adhesive in the fixing groove 130 into the mounting hole 211, and using the adhesive in the mounting hole 211 to achieve a fixed connection between the pin 213 and the mounting hole 211, after the adhesive cures, not only does the adhesive at the notch 121 form a limiting structure to limit the axial direction of the insertion part, but it also enhances the reliability of the connection between the insertion part and the fixing seat when the insertion part and / or the handle are subjected to axial force. Moreover, the adhesive on the proximal outer wall of the insertion part, inside the fixing groove 130, at the notch 121, and inside the mounting hole 211 can be used as a whole to bond the proximal end of the insertion part, the fixing seat, the pin 213, and the mounting hole 211 together, making the overall structure more robust, the connection more reliable, and greatly improving the strength and damage resistance of the distal end of the handle.

[0056] Thirdly, in this embodiment, the fixing seat has a notch 121 on the side wall 120. When the handle housing is formed by injection molding, the notch 121 helps to reduce the accumulation of internal stress during the curing of the injection plastic and also helps to release heat more evenly during the curing of the injection plastic. This reduces the shrinkage rate of the injection plastic during curing, thereby reducing the possibility of deformation of the fixing seat and the mounting hole 211. This can improve the installation accuracy of the near end of the insertion part 300 and further reduce the assembly difficulty of the pin 213 and the mounting hole 211.

[0057] According to an optional embodiment, the sidewall 120 is fixedly connected to the mounting hole 211 of the housing 210, such as... Figure 3 , Figure 5 and Figure 7As shown in the figure. Preferably, the side wall 120 is disposed close to the mounting hole 211, and the side wall 120 and the mounting hole 211 are integral structures. Since the size of the distal end of the housing 210 is limited, fixing the side wall 120 to the mounting hole 211 not only makes the structural layout of the distal end of the housing 210 compact and saves space, but also improves the strength of the fixing base and the mounting hole 211.

[0058] Preferably, on the side where the sidewall 120 connects to the mounting hole 211, the sidewall 120 located on both sides of the notch 121 is a first arc-shaped structure 122, such as... Figure 3 and Figure 7 As shown. More preferably, the first arc-shaped structure 122 is a concave arc-shaped structure, such as... Figure 3 and Figure 7 As shown. In the preferred embodiment, the fixing seat has a first arc-shaped structure 122 on the side walls 120 on both sides of the notch 121. This not only helps to guide the adhesive flowing out of the notch 121 into the mounting hole 211, avoiding the problem that the adhesive flowing out of the notch 121 is difficult to enter the mounting hole 211 because the two sides of the notch 121 are right angle structures, but also helps to increase the bonding area between the adhesive and the fixing seat.

[0059] According to an optional embodiment, the base 110 is provided with a plurality of slots 111, the plurality of slots 111 being spaced apart, such as... Figure 5 As shown. Preferably, the base 110 has 2 to 10 slots 111. For example, Figure 5 A schematic diagram is shown of a base 110 having six empty slots 111.

[0060] When forming the handle housing through injection molding, the preferred technical solution in this embodiment is a fixing base 110 with multiple slots 111. These slots 111 further reduce the accumulation of internal stress during the curing of the injection-molded plastic and also help to release heat more evenly during curing, thereby further reducing the shrinkage rate of the injection-molded plastic and further reducing the possibility of deformation of the fixing base and mounting hole 211. On the other hand, the multiple slots 111 on the base 110 can hold adhesive, thereby increasing the bonding area between the adhesive and the proximal end of the insertion part 300; holding the adhesive in the slots 111 also prevents the adhesive injected into the fixing groove 130 from overflowing.

[0061] According to an optional embodiment, a plurality of protrusions 123 are formed on the inner surface of the sidewall 120, such as... Figure 5 As shown. For example, protrusion 123 is formed by the connection between base 110 and sidewall 120, or protrusion 123 is formed by protruding from the inner surface of sidewall 120, such as... Figure 5As shown. Preferably, a plurality of protrusions 123 are formed on the inner surfaces of both sidewalls 120. Exemplarily, the number of protrusions 123 on each sidewall 120 is 2 to 5, and the plurality of protrusions 123 are evenly distributed. In the preferred embodiment of the fixing seat, a plurality of protrusions 123 are formed on the inner surfaces of the sidewalls 120. The protrusions 123 can increase the contact area between the fixing seat and the adhesive, thereby enhancing the reliability of the adhesive bonding between the proximal end of the insertion part 300 and the fixing seat.

[0062] like Figure 1 and Figure 2 As shown, a connector 310 is provided at the proximal end of the insertion part 300. The connector 310 has a through hole extending along its axial direction. The proximal end of the insertion part 300 is installed in the through hole and extends out. A limiting part 216 is also provided at the distal end of the housing 210. By installing the connector 310 at the distal end of the housing 210 and making the limiting part 216 abut against the connector 310, the initial installation of the proximal end of the insertion part 300 can be achieved. Figures 2-7 As shown. By abutting the limiting part 216 against the adapter 310, the adapter 310 can be limited in the radial direction.

[0063] According to an optional embodiment, a gap 140 is provided between the distal end of the sidewall 120 and the adapter 310 of the insertion portion 300, such as... Figure 2 and Figure 3 Therefore, in the preferred embodiment, the fixing seat has a gap 140 between the distal end of the side wall 120 and the adapter 310. This gap 140 facilitates the flow of adhesive in the fixing groove 130 to the fixing seat, allowing the adhesive to fix the adapter 310 to the fixing seat. This further limits the axial direction of the adapter 310, ensuring the reliability of its installation. It also enhances the overall integrity of the distal end structure of the handle, improving its strength and resistance to damage.

[0064] Preferably, a stepped structure 124 is provided on the distal end face of the sidewall 120, such as... Figure 6 and Figure 7 As shown. In this preferred embodiment, the fixing seat has a stepped structure 124 on the far end face of the side wall 120, which can further increase the bonding area between the adhesive at the gap 140 and the side wall 120, thereby further enhancing the reliability of the connection between the adapter 310 and the fixing seat.

[0065] More preferably, the distal corner of the sidewall 120 is a second arc-shaped structure 125, which extends to the stepped structure 124, such as... Figure 6 and Figure 7As shown. In this preferred embodiment, the fixing seat has a second arc-shaped structure 125 at the far end of the side wall 120. The second arc-shaped structure 125 extends to the stepped structure 124, allowing the adhesive overflowing to the top of the side wall 120 to flow along the second arc-shaped structure 125 to the stepped structure 124, thereby allowing more adhesive to enter the gap 140 and enhancing the reliability of the bonding between the adapter 310 and the fixing seat.

[0066] The second aspect of this embodiment describes the endoscope handle in detail.

[0067] The endoscope handle of this embodiment includes a housing 210 and a fixing base 100. The housing 210 has a receiving cavity 212, and the fixing base 100 is a fixing base according to any technical solution in this embodiment. The fixing base 100 is located within the receiving cavity 212. Figure 2 As shown. Preferably, the fixing seat is located at the distal end of the receiving cavity 212, as... Figure 2 As shown. Preferably, the fixing base 100 and the handle housing 210 are an integral structure.

[0068] The endoscope handle of this embodiment has a fixing seat according to any of the technical solutions in this embodiment. The fixing seat can not only reduce the requirements for the production precision of the housing and reduce the assembly difficulty of the upper and lower housings, but also improve the strength and damage resistance of the distal end of the handle. It also helps to reduce the shrinkage rate during the curing of the injection molding material, thereby reducing the possibility of deformation of the fixing seat and the mounting hole 211, improving the installation accuracy of the proximal end of the insertion part 300, and further reducing the assembly difficulty of the pin 213 and the mounting hole 211.

[0069] According to an optional embodiment, the housing 210 includes a first housing 210a and a second housing 210b. One of the first housing 210a and the second housing 210b is provided with a mounting hole 211, and the other of the first housing 210a and the second housing 210b is provided with a pin 213. Figures 2-8 As shown. By inserting the pin 213 into the mounting hole 211, the first housing 210a and the second housing 210b can be initially fixed.

[0070] Preferably, the mounting hole 211 and the pin 213 are clearance-fitted, and the height of the mounting hole 211 is greater than the height of the pin 213. In this preferred embodiment, the endoscope handle has a mounting hole 211 with a height greater than the pin 213, which provides a certain amount of space for adhesive to be stored in the mounting hole 211. Even if adhesive flows into the mounting hole 211, it can still ensure that the pin 213 can be properly installed.

[0071] Not limited to this, the height of the mounting hole 211 and the height of the pin 213 can also be the same. Since the adhesive used in this application is a slow-drying adhesive, when the adhesive enters the mounting hole 211, it will not solidify instantly and will still be fluid. At this time, inserting the pin 213 into the mounting hole 211 can squeeze out excess adhesive from the mounting hole 211, ensuring that the pin 213 can still be assembled. At the same time, it also makes the adhesive in the mounting hole 211 more complete and free of air bubbles.

[0072] The third aspect of this embodiment provides a detailed description of the endoscope.

[0073] The endoscope in this embodiment includes a handle 200 and an insertion portion 300, such as... Figure 1 As shown. The handle 200 is an endoscope handle according to any technical solution in this embodiment. The proximal end of the insertion part 300 is mounted on the fixing seat 100 inside the handle 200, and the proximal end of the insertion part 300 and the fixing seat 100 are fixedly connected by adhesive bonding, as shown. Figure 1 As shown. The remaining structure of the insertion part 300 is the same as that of the prior art, and will not be described in detail here.

[0074] The endoscope of this embodiment has an endoscope handle with any of the technical solutions in this embodiment. This not only reduces the requirements for the production precision of the housing and reduces the assembly difficulty of the upper and lower housings, but also improves the strength and damage resistance of the distal end of the handle. It also helps to reduce the shrinkage rate during the curing of the injection molding material, thereby reducing the possibility of deformation of the fixing seat and the mounting hole 211, improving the installation accuracy of the proximal end of the insertion part 300, and further reducing the assembly difficulty of the pin 213 and the mounting hole 211.

[0075] The fourth aspect of this embodiment describes in detail the assembly method of the endoscope.

[0076] The endoscope assembly method of this embodiment is based on any one of the technical solutions in this embodiment, and the assembly method includes at least the following steps:

[0077] Step S100: Pour a preset amount of adhesive into the fixing base 100, and guide the adhesive in the fixing groove 130 into the mounting hole 211 through the notch 121. The preset amount of adhesive is such that the adhesive in the fixing groove 130 can overflow from the notch 121.

[0078] In this embodiment, before installing the proximal end of the insertion part 300 into the fixing groove 130, glue is pre-filled into the fixing seat 100 to ensure that there is sufficient glue between the fixing groove 130 and the bottom surface of the proximal end of the insertion part 300, thereby further improving the reliability of the installation of the proximal end of the insertion part 300.

[0079] Step S200: Install the proximal end of the insertion part 300 into the fixing groove 130 of the fixing base 100.

[0080] Step S300: Observe whether the adhesive in the fixing seat 100 and the notch 121 is full. Based on the observation, pour adhesive into the fixing groove 130 and / or the notch 121 to fill the adhesive in the fixing groove 130 and the notch 121. Filling the adhesive in the fixing groove 130 and the notch 121 means that the fixing groove 130 and the notch 121 are filled with adhesive.

[0081] Since some of the adhesive in the fixing groove 130 overflows into the mounting hole 211 through the notch 121, there may be insufficient adhesive in the fixing groove 130. By refilling the fixing groove 130 with adhesive, not only can sufficient adhesive be squeezed into the mounting hole 211, but the reliability of the connection between the proximal end of the insertion part 300 and the fixing seat can also be ensured. By refilling the notch 121 with adhesive, the strength of the adhesive after curing at the notch 121 can be enhanced, thereby further improving the reliability of the proximal end installation of the insertion part 300.

[0082] Step S400: Insert the pin 213 into the mounting hole 211, and use the adhesive in the mounting hole 211 to fix the pin 213 to the mounting hole 211. The curing form of the adhesive can be determined based on the specific adhesive, for example, it can be cured by static curing or light curing.

[0083] Specifically, for the mounting hole 211 and pin 213 near the fixing base 100, they can be fixedly connected by the adhesive leading out from the notch 121 on the fixing base 100. For the mounting hole 211 and pin 213 at other positions, they can be fixedly connected by the adhesive pre-filled into the mounting hole 211.

[0084] The endoscope assembled by the method of this embodiment has the advantages of low requirements for housing production precision, low difficulty in housing assembly, high strength and damage resistance of the distal end of the handle, and low shrinkage rate during injection molding and curing.

[0085] 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.

[0086] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A mounting base for an endoscope handle (200), characterized in that, The mounting base includes a base (110) and sidewalls (120). The base (110) is located at the distal end of the housing (210) of the handle (200). The sidewalls (120) are located on opposite sides of the base (110), forming a mounting groove (130) between the base (110) and the sidewalls (120). The mounting groove (130) is used to install the proximal end of the insertion part (300) of the endoscope. The housing (210) includes a first housing (210a) and a second housing (210b). One of the first housing (210a) and the second housing (210b) is provided with a mounting hole (211), and the other of the first housing (210a) and the second housing (210b) is provided with a pin (213). The mounting hole (211) and the pin (213) are in clearance fit, and the height of the mounting hole (211) is greater than the height of the pin (213). A notch (121) is provided on the side wall (120), the notch (121) penetrates the side wall (120) and communicates with the mounting hole (211) located on the side wall (120), the notch (121) also extends to the mounting hole (211) and enables the notch (121) to guide the adhesive in the fixing groove (130) into the mounting hole (211).

2. The fixing base according to claim 1, characterized in that, Along the axial direction of the handle (200), the width of the notch (121) is 2mm to 4mm.

3. The fixing base according to claim 1, characterized in that, The sidewall (120) is fixedly connected to the mounting hole (211) of the housing (210), and the sidewall (120) connected to the mounting hole (211) is a first arc-shaped structure (122) on both sides of the notch (121).

4. The fixing base according to any one of claims 1 to 3, characterized in that, The base (110) is provided with a plurality of empty slots (111), and the plurality of empty slots (111) are spaced apart.

5. The fixing base according to claim 4, characterized in that, Multiple protrusions (123) are formed on the inner surface of the sidewall (120).

6. The fixing base according to any one of claims 1 to 3, characterized in that, There is a gap (140) between the distal end of the sidewall (120) and the adapter (310) of the insertion part (300), and a stepped structure (124) is provided on the distal end face of the sidewall (120). The distal corner of the sidewall (120) is a second arc-shaped structure (125), which extends to the stepped structure (124).

7. An endoscope handle, characterized in that, It includes a housing (210) and a mounting base (100), wherein the housing (210) has a receiving cavity (212), and the mounting base (100) is the mounting base according to any one of claims 1 to 6, and the mounting base (100) is located within the receiving cavity (212).

8. The endoscope handle according to claim 7, characterized in that, The housing (210) includes a first housing (210a) and a second housing (210b). One of the first housing (210a) and the second housing (210b) is provided with a mounting hole (211), and the other of the first housing (210a) and the second housing (210b) is provided with a pin (213). The mounting hole (211) and the pin (213) are in clearance fit, and the height of the mounting hole (211) is greater than the height of the pin (213).

9. An endoscope, characterized in that, It includes a handle (200) and an insertion part (300), wherein the handle (200) is the endoscope handle according to claim 7 or 8, the proximal end of the insertion part (300) is mounted on a fixing seat (100) inside the handle (200), and the proximal end of the insertion part (300) is fixedly connected to the fixing seat (100) by adhesive bonding.

10. A method for assembling an endoscope, characterized in that, Based on the endoscope of claim 9, the assembly method includes at least the following steps: A preset amount of adhesive is poured into the fixing seat (100), and the adhesive in the fixing groove (130) is guided into the mounting hole (211) through the notch (121); The proximal end of the insertion part (300) is installed in the fixing groove (130) of the fixing seat (100); Observe whether the adhesive in the fixing seat (100) and the notch (121) is full. Based on the observation results, inject adhesive into the fixing groove (130) and / or the notch (121) to make the adhesive in the fixing groove (130) and the notch (121) full. Insert the pin (213) into the mounting hole (211) and use the adhesive in the mounting hole (211) to fix the pin (213) to the mounting hole (211).

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