Soft endoscope assembly and operation method thereof

Abstract

The invention provides a soft endoscope assembly and an operation method thereof, and the soft endoscope assembly comprises a soft endoscope which comprises a handle and a hose, one end of the handle is connected with the hose, the handle is provided with a holding surface and an operation surface, and the operation surface is provided with a working channel for introducing a guide wire; the guide sheath comprises a sheath tube and a guide sheath hand buckle, and part of the hose penetrates into the sheath tube and is fixedly held on the sheath tube; the endoscope holding device comprises a first holding part, a second holding part and a connecting part, the first holding part is located at the bottom of the connecting part, and the first holding part is detachably connected with the sheathing canal; the second holding part is located at the top of the connecting part, an included angle is formed between the second holding part and the connecting part, and the second holding part is detachably connected with the handle. According to the flexible endoscope assembly, the effect of controlling the guide sheath and the flexible endoscope at the same time can be achieved, a doctor can independently use the endoscope by holding the flexible endoscope assembly with one hand, meanwhile, the surgical operation is simplified, and the surgical duration is shortened.

Description

Technical Field

[0001] This invention relates to the field of endoscopy, and more particularly to a flexible endoscope assembly and its operating method. Background Technology

[0002] In traditional ureteral surgery, a rigid endoscope is first used to enter the bladder and locate the ureteral orifice. After placing a guidewire at the orifice, the rigid endoscope is withdrawn, and then a flexible endoscope is inserted along the guidewire to perform the surgery. This type of surgery requires the doctor to use two sets of operating systems to complete the procedure, which is complex and increases the time cost. Summary of the Invention

[0003] The technical problem solved by this invention is to provide a flexible endoscope assembly and its operation method, which simplifies surgical procedures and improves surgical efficiency.

[0004] To solve the above-mentioned technical problems, the present invention provides a flexible endoscope assembly, comprising: A flexible endoscope includes a handle and a flexible tube. One end of the handle is for gripping, and the other end of the handle is connected to the flexible tube. The handle has a gripping surface and an operating surface on opposite sides. The operating surface is provided with a working channel for inserting a guide wire. The guide sheath includes a sheath tube and a guide sheath hand buckle located at the end of the sheath tube, with a portion of the flexible tube inserted into the sheath tube and the sheath tube and the portion of the flexible tube being fixedly connected. The lens holding device includes a first holding part, a second holding part, and a connecting part connecting the first holding part and the second holding part. The first holding part is located at the bottom of the connecting part and is detachably connected to the sheath. The second holding part is located at the top of the connecting part and has an included angle with the connecting part. The second holding part is detachably connected to the handle.

[0005] Optionally, the connecting part is columnar, and the second retaining part is an arc-shaped groove.

[0006] Optionally, the front end of the arc-shaped card slot has a first curvature, and the rear end of the arc-shaped card slot has a second curvature, with the first curvature being greater than the second curvature.

[0007] Optionally, the arc-shaped slot has a recessed portion facing the connecting portion, and the recessed portion has a through hole. When the operating surface is fixed in the arc-shaped slot, the working channel is received in the recessed portion, and the entrance of the working channel protrudes from the through hole.

[0008] Optionally, when the gripping surface is held in the arc-shaped slot, the working channel is exposed.

[0009] Optionally, the bottom of the connecting portion has an upwardly bent groove, the groove including a vertical portion and a bent portion, a first retaining portion protruding from the front side of the bent portion, and the first retaining portion being perpendicular to the connecting portion.

[0010] Optionally, the first retaining part is an upward-opening wire groove with a wire groove handle protruding from the front side of the vertical part and located on the upper surface of one side wall of the wire groove.

[0011] Optionally, the first retaining part is a wire groove, the front end of the wire groove has a bundle part, and the front side of the bundle part has a bundle opening.

[0012] Optionally, the first retaining part is a tubular channel with a groove on the side wall and a constricted end at the front end.

[0013] Optionally, the height of the connecting part is 100 mm to 300 mm, the length of the second holding part is 30 mm to 180 mm, the included angle between the second holding part and the connecting part is 30° to 70°, and the weight of the lens holding device is less than 200 grams.

[0014] The technical solution of the present invention also provides an operating method for a flexible endoscope assembly, which can be applied to the above-mentioned flexible endoscope assembly, including: Hold the handle firmly and insert the flexible tube along the sheath until the tip of the tube protrudes beyond the sheath by a predetermined length, exposing the lens of the flexible endoscope. After exposing the lens, secure the sheath to the flexible tube. After securing the sheath to the flexible tube, hold the sheath and handle to the endoscope holder. After holding the sheath and handle to the endoscope holder, simultaneously control the sheath and the endoscope holder, and in conjunction with the imaging system of the flexible endoscope, advance the tip of the sheath to the target area. After the tip of the sheath is advanced to the target area, place the guidewire along the working channel at the target area. After the guidewire is placed at the target area, withdraw the endoscope holder to move the sheath away from the cavity where the target area is located. After the sheath leaves the cavity, remove the sheath and handle from the endoscope holder. After removing the handle, pull the flexible tube out of the sheath. After pulling out the flexible tube, extend the flexible endoscope along the guidewire to the target area.

[0015] Optionally, the sheath is secured within the groove of the lens holder, the groove having a groove handle. The method of securing the sheath and handle to the lens holder includes: when the gripping surface is inserted into the arc-shaped groove, the working channel is exposed; after the working channel is exposed, the end of the sheath is inserted into the groove, and the guide sheath handle is adjusted until the guide sheath handle coincides with the groove handle.

[0016] Optionally, the sheath is held in the groove of the lens holder, the groove having a bundle portion, and the arc-shaped slot having a recessed portion forming towards the connecting portion, the recessed portion having a through hole. The method of holding the sheath and handle in the lens holder includes inserting the end of the sheath into the groove, with the bundle portion blocking the connection between the end of the sheath and the guide sheath hand buckle; after the end of the sheath is held in the groove, the operating surface is inserted into the arc-shaped slot, the working channel is received in the recessed portion, and the entrance of the working channel protrudes out of the through hole.

[0017] Optionally, the sheath is fixed in the tubular groove of the lens holding device. The method of fixing the sheath and handle in the lens holding device includes inserting the end of the sheath into the tubular groove; after the end of the sheath is inserted into the tubular groove, the gripping surface is inserted into the arc-shaped groove.

[0018] Compared with the prior art, the technical solution of the present invention has the following beneficial effects: The flexible endoscope assembly provided by this invention includes a handle and a flexible tube. One end of the handle is for gripping, and the other end is connected to the flexible tube. The handle has a gripping surface and an operating surface on opposite sides. The operating surface has a working channel for inserting a guidewire. The guide sheath includes a sheath tube and a guide sheath handle located at the end of the sheath tube. Because part of the flexible tube is inserted into the sheath tube, and the sheath tube is fixedly connected to part of the flexible tube, the sheath tube provides rigidity for the flexible endoscope, thus enabling the flexible endoscope to pass through the channel into the cavity and reach the target area. Furthermore, because... The endoscope holding device includes a first holding part, a second holding part, and a connecting part connecting the first holding part and the second holding part. The first holding part is located at the bottom of the connecting part and is detachably connected to the sheath. The second holding part is located at the top of the connecting part and has an angle with the connecting part. The second holding part is detachably connected to the handle. Therefore, the endoscope holding device can simultaneously fix the guide sheath and the handle. Thus, by combining the imaging system of the flexible endoscope, the doctor can reach the target site by holding the flexible endoscope with one hand, which simplifies the traditional surgical operation method and shortens the operation time.

[0019] The operating method of the flexible endoscope assembly provided by the technical solution of the present invention is a solution corresponding to the above-mentioned flexible endoscope assembly. Therefore, it also has all the technical effects of the above-mentioned flexible endoscope assembly, and will not be repeated here. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a flexible endoscope assembly in one embodiment of the present invention; Figure 2 This is a schematic diagram of the flexible endoscope assembly according to the first embodiment of the present invention; Figure 3 This is a schematic diagram of the mirror-holding device in the first embodiment of the present invention; Figure 4 This is a schematic diagram of the flexible endoscope assembly according to the second embodiment of the present invention; Figure 5 This is a schematic diagram of the mirror-holding device in the second embodiment of the present invention; Figure 6 This is a schematic diagram of the mirror-holding device in the third embodiment of the present invention. Detailed Implementation

[0021] As mentioned in the background art, existing endoscopic surgeries require the combined use of rigid and flexible endoscopes, and doctors need to switch between two imaging systems, which is cumbersome and time-consuming.

[0022] To solve the above-mentioned technical problems, the flexible endoscope assembly provided by the present invention includes a handle and a flexible tube. One end of the handle is for gripping, and the other end of the handle is connected to the flexible tube. The handle has a gripping surface and an operating surface on opposite sides. The operating surface has a working channel for inserting a guide wire. The guide sheath includes a sheath tube and a guide sheath handle located at the end of the sheath tube. Because part of the flexible tube is inserted into the sheath tube, and the sheath tube is fixedly connected to part of the flexible tube, the sheath tube provides rigidity for the flexible endoscope, thereby enabling the flexible endoscope to pass through the channel into the cavity and reach the target. The device provides a superior surgical experience. Furthermore, the endoscope-holding device includes a first holding part, a second holding part, and a connecting part that connects the first and second holding parts. The first holding part is located at the bottom of the connecting part and is detachably connected to the sheath. The second holding part is located at the top of the connecting part, and there is an angle between the second holding part and the connecting part. The second holding part is detachably connected to the handle. Therefore, the endoscope-holding device can simultaneously fix the guide sheath and the handle. Thus, by combining the imaging system of the flexible endoscope, the surgeon can reach the target site with a single handheld flexible endoscope, simplifying traditional surgical procedures and shortening the operation time.

[0023] To make the above-mentioned objectives, features, and beneficial effects of the present invention more apparent and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. Additionally, directional terms such as above, below, up, down, upward, downward, left, right, etc., are used relative to exemplary embodiments as they are shown in the figures, with upward or upper directions pointing towards the top of the corresponding figure and downward or lower directions pointing towards the bottom of the corresponding figure.

[0025] [First Embodiment] Please refer to the reference. Figure 1 and Figure 2 The flexible endoscope assembly includes: a flexible endoscope 1, a guide sheath 2, and a holding device 3.

[0026] Furthermore, Figure 1 This is a schematic diagram of a flexible endoscope assembly in one embodiment of the present invention, wherein the endoscope holder 3 is not installed.

[0027] The flexible endoscope 1 includes a handle 12 and a flexible tube 11. One end of the handle 12 is used for gripping, and the other end of the handle 12 is connected to the flexible tube 11. The handle 12 has a gripping surface 121 and an operating surface 122 on opposite sides. The operating surface 122 is provided with a working channel 1221 for inserting a guide wire.

[0028] Furthermore, the working channel 1221 is also used to pass in other surgical instruments.

[0029] The guide sheath 2 includes a sheath tube 21 and a guide sheath buckle 22 located at the end of the sheath tube 21. A portion of the flexible tube 11 is inserted into the sheath tube 21, and the sheath tube 21 and the portion of the flexible tube 11 are fixedly connected.

[0030] Specifically, the tip of the flexible tube 11 protrudes 3 to 5 millimeters from the tip of the sheath 21, exposing the lens 13 of the flexible endoscope.

[0031] Please refer to Figure 3The mirror holding device 3 includes a first holding part, a second holding part, and a connecting part 32 connecting the first holding part and the second holding part. The first holding part is located at the bottom of the connecting part 32 and is detachably connected to the sheath tube 21. The second holding part is located at the top of the connecting part 32 and has an included angle α with the connecting part 32. The second holding part is detachably connected to the handle 12.

[0032] Furthermore, the hose 11 exposed at the rear of the sheath 21 is 200 mm long. When the handle 12 and the sheath 21 are simultaneously fixed to the lens holding device 3, the hose 11 connecting the handle 12 and the sheath 21 is naturally curved to ensure that the working channel 1221 in the hose 11 is not blocked due to the bending of the hose 11.

[0033] In this embodiment, the connecting part 32 is columnar, and the bottom of the connecting part 32 has an upwardly bent groove. The groove includes a vertical part 321 and a bent part 322. The first holding part protrudes from the front side of the bent part 322, and the first holding part is perpendicular to the connecting part 32. The second holding part is an arc-shaped groove 33.

[0034] Specifically, the height of the connecting part 32 is 100 mm to 300 mm, and the radius of the connecting part 32 is 10 mm to 15 mm; the length of the second holding part is 30 mm to 180 mm, and the included angle α between the second holding part and the connecting part 32 is 30° to 70°; the weight of the mirror holding device 3 is less than 200 grams.

[0035] In the flexible endoscope assembly of this embodiment, the flexible endoscope 1 includes a handle 12 and a flexible tube 11. One end of the handle 12 is for gripping, and the other end of the handle 11 is connected to the flexible tube 11. The handle 12 has a gripping surface 121 and an operating surface 122 on opposite sides. The operating surface 122 is provided with a working channel 1221 for inserting a guide wire. The guide sheath 2 includes a sheath tube 21 and a guide sheath buckle 22 located at the end of the sheath tube 21. Since part of the flexible tube 11 is inserted into the sheath tube 21 and the sheath tube 21 is fixedly connected to part of the flexible tube 11, the sheath tube 21 provides rigidity for the flexible endoscope 1, thereby enabling the flexible endoscope 1 to pass through the channel. The device allows the endoscope to enter the cavity and reach the target area. Furthermore, the endoscope holding device 3 includes a first holding part, a second holding part, and a connecting part 32 that connects the first and second holding parts. The first holding part is located at the bottom of the connecting part 32 and is detachably connected to the sheath 21. The second holding part is located at the top of the connecting part 32, and there is an angle α between the second holding part and the connecting part 32. The second holding part is detachably connected to the handle 12. Therefore, the endoscope holding device can simultaneously fix the guide sheath and the handle. Thus, by combining the imaging system of the flexible endoscope, the doctor can reach the target area with a single handheld flexible endoscope, simplifying traditional surgical procedures and shortening the operation time.

[0036] Furthermore, the connecting part 32 is provided with a grip, which is made of a soft material, such as silicone, and has a recess that matches the fingers.

[0037] In other embodiments, the grip is made of a polymer material and has a rough outer surface.

[0038] Furthermore, the front end of the arc-shaped slot 33 has a first curvature, and the rear end of the arc-shaped slot 33 has a second curvature. The first curvature is greater than the second curvature. The radius of the first curvature is 12 mm to 16 mm, and the radius of the second curvature is 9 mm to 13 mm.

[0039] In other embodiments, the lens holding device 3 is made of polymer material and is integrally injection molded, that is, the included angle α between the second holding part and the connecting part 32 is fixed.

[0040] In other embodiments, the lens holding device 3 is made of polymer material, the included angle α between the second holding part and the connecting part 32 is adjustable, and the second holding part is fixed by fasteners (not shown).

[0041] In other embodiments, both the first retaining portion and the connecting portion 32 are made of polymer material, and the second retaining portion is a metal mesh structure.

[0042] Please refer to the reference. Figure 2 and Figure 3 When the gripping surface 121 is fixed in the arc-shaped slot 33, the working channel 1221 is exposed; the first holding part is an upward-opening wire groove 31, the wire groove 31 has a wire groove handle 311, the wire groove handle 311 protrudes from the front side of the vertical part 321, and the wire groove handle 311 is located on the upper surface of one side wall of the wire groove.

[0043] Furthermore, the front end of the wire groove 31 has a bundle portion 312, which, like the wire groove 31, is an upward-opening slot. The end of the sheath tube 21 is inserted into the bundle portion 312, and the guide sheath hand buckle 22 is inserted into the wire groove 31.

[0044] Specifically, the length of the cable tray 31 is 100 mm to 300 mm.

[0045] This invention also provides an operating method for a flexible endoscope assembly based on the first embodiment described above, comprising the following steps: Step 1: Hold the handle 12 and insert the flexible tube 11 along the sheath 21 until the front end of the flexible tube 11 protrudes beyond the sheath 21 by a predetermined length, exposing the lens 13 of the flexible endoscope; after exposing the lens 13, fix the sheath 21 to the flexible tube 11.

[0046] Step 2: After the sheath 21 is fixedly connected to the hose 11, secure the sheath 21 and the handle 12 to the lens holding device 3.

[0047] Step 3: After the sheath 21 and handle 12 are fixed to the endoscope holding device 3, simultaneously control the sheath 21 and the endoscope holding device 3, and in conjunction with the imaging system of the flexible endoscope 1, advance the tip of the sheath 21 to the target area.

[0048] Step 4: After the tip of the sheath 21 is advanced to the target, place the guidewire along the working channel 1221 at the target.

[0049] Step 5: After the guidewire is placed at the target site, withdraw the lens holder 3 to move the sheath 21 away from the cavity where the target site is located.

[0050] Step 6: After the sheath 21 leaves the cavity, the self-holding mirror device 3 removes the sheath 21 and the handle 12.

[0051] Step 7: After removing the handle 12, pull the hose 11 out of the sheath 21; after pulling out the hose 11, extend the flexible endoscope 1 along the guidewire to the target area.

[0052] The preset length is 3 mm to 5 mm.

[0053] For further details, please refer to the following references. Figure 2 and Figure 3 The method of securing the sheath 21 and handle 12 to the lens holding device 3 includes: securing the sheath 21 in the groove 31 of the lens holding device 3, the groove 31 having a groove handle 311; the method of securing the sheath 21 and handle 12 to the lens holding device 3 includes: when the gripping surface 121 is inserted into the arc-shaped groove 33, the working channel 1221 is exposed; after the working channel 1221 is exposed, the end of the sheath 21 is inserted into the groove 31, and the guide sheath handle 22 is adjusted until the guide sheath handle 22 coincides with the groove handle 311.

[0054] [Second Embodiment] The second embodiment is a modified embodiment of the first embodiment. The main difference between the second embodiment and the first embodiment is that the operating surface 122 of the handle is inserted into the arc-shaped slot 43, which will be described in detail below.

[0055] Please refer to Figure 4 The arc-shaped slot 43 has a recess 431 facing the connecting part 42. The recess 431 has a through hole 432. When the operating surface 122 is fixed in the arc-shaped slot 43, the working channel 1221 is received in the recess 431, and the entrance 1222 of the working channel 1221 protrudes from the through hole 432.

[0056] Please combine Figure 4 and Figure 5The first holding part of the mirror holding device 4 has an upward-facing groove 41. The front end of the groove 41 has a bundle 411, which is annular and has a slit 412 on its front side. When the sheath 21 is held in the groove 41, the end of the sheath 21 passes through the bundle 411. The bundle 411 blocks the connection between the end of the sheath 21 and the guide sheath buckle 22. The slit 412 fits against the outer wall of the sheath 21 and is held in place. The guide sheath buckle 22 is inserted into the groove 41.

[0057] This invention also provides an operating method for a flexible endoscope assembly based on the second embodiment described above, comprising the following steps: Step 1: Hold the handle 12 and insert the flexible tube 11 along the sheath 21 until the front end of the flexible tube 11 protrudes beyond the sheath 21 by a predetermined length, exposing the lens 13 of the flexible endoscope; after exposing the lens 13, fix the sheath 21 to the flexible tube 11.

[0058] Step 2: After the sheath 21 is fixedly connected to the hose 11, secure the sheath 21 and the handle 12 to the lens holding device 4.

[0059] Step 3: After the sheath 21 and handle 12 are fixed to the endoscope holding device 4, simultaneously control the sheath 21 and the endoscope holding device 4, and in conjunction with the imaging system of the flexible endoscope 1, advance the tip of the sheath 21 to the target area.

[0060] Step 4: After the tip of the sheath 21 is advanced to the target, place the guidewire along the working channel 1221 at the target.

[0061] Step 5: After the guidewire is placed at the target site, the lens holder 4 is withdrawn, causing the sheath 21 to leave the cavity where the target site is located.

[0062] Step 6: After the sheath 21 leaves the cavity, the self-holding mirror device 4 removes the sheath 21 and the handle 12.

[0063] Step 7: After removing the handle 12, pull the hose 11 out of the sheath 21; after pulling out the hose 11, extend the flexible endoscope 1 along the guidewire to the target area.

[0064] The preset length is 3 mm to 5 mm.

[0065] For further details, please refer to the following references. Figure 4 and Figure 5The method of securing the sheath 21 and handle 12 to the lens holding device 4 includes: securing the sheath 21 in the groove 41 of the lens holding device 4, the groove 41 having a bundle 411, the arc-shaped groove 43 having a recess 431 formed toward the connecting part 42, the recess 431 having a through hole 432, and securing the sheath 21 and handle 12 to the lens holding device 4 includes: securing the end of the sheath 21 in the groove 41, and the bundle 411 blocking the connection between the end of the sheath 21 and the guide sheath hand buckle 22; after the sheath 21 is inserted into the groove 41, the operating surface 122 is inserted into the arc-shaped groove 43, the working channel 1221 is received in the recess 431, and the entrance 1222 of the working channel 1221 protrudes out of the through hole 432.

[0066] [Third Embodiment] The third embodiment is a variation of the first embodiment. The main difference between the third embodiment and the first embodiment is that the handle 12 and the first holding part are located on the same side of the connecting part 52. This will be described in detail below.

[0067] Please refer to Figure 6 The first holding part of the mirror holding device 5 is a tubular through groove 51.

[0068] Specifically, the tubular through groove 51 has a groove 512 on its side wall to provide elasticity and improve its adaptability. The front end of the tubular through groove 51 has a constriction 511. When the sheath tube 21 is fixed in the tubular through groove 51, the end of the sheath tube 21 passes through the tubular through groove 51. The front wall of the tubular through groove 51 blocks the connection between the end of the sheath tube 21 and the guide sheath hand buckle 22. The constriction 511 fits against the outer wall of the sheath tube 21 for fixation.

[0069] This invention also provides an operating method for a flexible endoscope assembly based on the third embodiment described above, comprising the following steps: Step 1: Hold the handle 12 and insert the flexible tube 11 along the sheath 21 until the front end of the flexible tube 11 protrudes beyond the sheath 21 by a predetermined length, exposing the lens 13 of the flexible endoscope; after exposing the lens 13, fix the sheath 21 to the flexible tube 11.

[0070] Step 2: After the sheath 21 is fixedly connected to the hose 11, secure the sheath 21 and the handle 12 to the lens holding device 5.

[0071] Step 3: After the sheath 21 and handle 12 are fixed to the endoscope holding device 5, simultaneously control the sheath 21 and the endoscope holding device 5, and in conjunction with the imaging system of the flexible endoscope 1, advance the tip of the sheath 21 to the target area.

[0072] Step 4: After the tip of the sheath 21 is advanced to the target, place the guidewire along the working channel 1221 at the target.

[0073] Step 5: After the guidewire is placed at the target site, withdraw the lens holder 5 to move the sheath 21 away from the cavity where the target site is located.

[0074] Step 6: After the sheath 21 leaves the cavity, the self-holding mirror device 5 removes the sheath 21 and the handle 12.

[0075] Step 7: After removing the handle 12, pull the hose 11 out of the sheath 21; after pulling out the hose 11, extend the flexible endoscope 1 along the guidewire to the target area.

[0076] The preset length is 3 mm to 5 mm.

[0077] For further details, please refer to... Figure 6 The method of securing the sheath 21 and handle 12 to the lens holding device 5 includes: securing the sheath 21 in the tubular through groove 51 of the lens holding device 5; and securing the sheath 21 and handle 12 to the lens holding device 5 includes: inserting the end of the sheath 21 into the tubular through groove 51; and after the end of the sheath 21 is inserted into the tubular through groove 51, snapping the gripping surface 121 into the arc-shaped slot 53.

[0078] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A flexible endoscope assembly, characterized in that, include: A flexible endoscope includes a handle and a flexible tube. One end of the handle is for gripping, and the other end of the handle is connected to the flexible tube. The handle has a gripping surface and an operating surface on opposite sides. The operating surface is provided with a working channel for inserting a guidewire. A guide sheath includes a sheath tube and a guide sheath buckle located at the end of the sheath tube, a portion of the flexible tube is inserted into the sheath tube, and the sheath tube is fixedly connected to the portion of the flexible tube; The lens holding device includes a first holding part, a second holding part, and a connecting part connecting the first holding part and the second holding part. The first holding part is located at the bottom of the connecting part and is detachably connected to the sheath. The second holding part is located at the top of the connecting part and has an included angle with the connecting part. The second holding part is detachably connected to the handle.

2. The flexible endoscope assembly according to claim 1, characterized in that, The connecting part is columnar, and the second retaining part is an arc-shaped groove.

3. The flexible endoscope assembly according to claim 2, characterized in that, The front end of the arc-shaped slot has a first curvature, and the rear end of the arc-shaped slot has a second curvature, wherein the first curvature is greater than the second curvature.

4. The flexible endoscope assembly according to claim 3, characterized in that, The arc-shaped slot has a recessed portion facing the connecting portion, and the recessed portion has a through hole. When the operating surface is fixed in the arc-shaped slot, the working channel is received in the recessed portion, and the entrance of the working channel protrudes from the through hole.

5. The flexible endoscope assembly according to claim 3, characterized in that, When the gripping surface is fixed in the arc-shaped slot, the working channel is exposed.

6. The flexible endoscope assembly according to claim 2, characterized in that, The bottom of the connecting part has an upwardly bent groove, the groove including a vertical part and a bent part, the first retaining part protruding from the front side of the bent part, and the first retaining part is perpendicular to the connecting part.

7. The flexible endoscope assembly according to claim 6, characterized in that, The first holding part is an upward-opening wire groove, the wire groove has a wire groove handle, the wire groove handle protrudes from the front side of the vertical part, and the wire groove handle is located on the upper surface of one side wall of the wire groove.

8. The flexible endoscope assembly according to claim 6, characterized in that, The first holding part is a wire groove, the front end of the wire groove has a bundle part, and the front side of the bundle part has a bundle opening.

9. The flexible endoscope assembly according to claim 2, characterized in that, The first retaining part is a tubular channel, the side wall of the tubular channel has a groove, and the front end of the tubular channel has a constriction.

10. The flexible endoscope assembly according to claim 1, characterized in that, The height of the connecting part is 100 mm to 300 mm, the length of the second holding part is 30 mm to 180 mm, the included angle between the second holding part and the connecting part is 30° to 70°, and the weight of the mirror holding device is less than 200 grams.

11. A method for operating a flexible endoscope assembly, characterized in that, Capable of being applied to a flexible endoscope assembly as described in any one of claims 1 to 10, comprising: Hold the handle and insert the flexible tube along the sheath until the front end of the flexible tube reaches a predetermined length protruding from the front end of the sheath, exposing the lens of the flexible endoscope; After exposing the lens, securely connect the sheath to the hose; After the sheath is fixedly connected to the hose, the sheath and the handle are secured to the lens holding device; After the sheath and the handle are secured to the endoscope holding device, the sheath and the endoscope holding device are controlled simultaneously, and in conjunction with the imaging system of the flexible endoscope, the tip of the sheath is advanced to the target area. After the tip of the sheath is delivered to the target location, the guidewire is placed at the target location along the working channel; After the guidewire is placed at the target location, the endoscope holding device is withdrawn, causing the sheath to leave the cavity where the target location is located; After the sheath leaves the cavity, the sheath and the handle are removed from the lens holding device; After removing the handle, pull the hose out of the sheath; After withdrawing the tubing, extend the flexible endoscope along the guidewire to the target location.

12. The operating method according to claim 11, characterized in that, The sheath is held within the groove of the lens-holding device, the groove having a handle. The method for holding the sheath and the handle to the lens-holding device includes... When the gripping surface is inserted into the arc-shaped slot, the working channel is exposed; After exposing the working channel, insert the end of the sheath into the wire groove, and adjust the hand catch of the guide sheath until the hand catch of the guide sheath coincides with the hand catch of the wire groove.

13. The operating method according to claim 11, characterized in that, The sheath is held within a groove in the lens holder, the groove having a bundle portion, and the arc-shaped slot having a recessed portion facing the connecting portion, the recessed portion forming a through hole. The method for holding the sheath and the handle in the lens holder includes... The end of the sheath is secured within the groove, and the bundle portion blocks the connection between the end of the sheath and the guide sheath hand buckle; After the end of the sheath is fixed to the groove, the operating surface is inserted into the arc-shaped groove, the working channel is received in the recess, and the entrance of the working channel protrudes from the through hole.

14. The operating method according to claim 11, characterized in that, The sheath is held within the tubular groove of the lens-holding device, and the method for holding the sheath and the handle to the lens-holding device includes... Insert the end of the sheath into the tubular groove; After the tubular through-slot is inserted into the end of the sheath, the gripping surface is engaged in the arc-shaped slot.

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