Endoscope and assembly and disassembly method therefor

Abstract

Embodiments of the present description provide an endoscope and an assembly and disassembly method therefor. The endoscope comprises: an operation section; an insertion section, comprising a control member and an adjustment member, wherein a second end of the control member is transmittingly connected to the adjustment member, and the control member is configured to adjust the state of a target instrument by controlling the movement of the adjustment member; and a connection section, wherein a first end of the control member is detachably connected to the connection section, and the operation section is transmittingly connected to the connection section. The endoscope has a connected state and a disassembled state; when the endoscope is in the connected state, the first end of the control member remains connected to the connection section; when the endoscope is in the disassembled state, the connection section is disconnected from the first end of the control member; and when the endoscope transitions from the connected state to the disassembled state, the connection section and / or the first end of the control member deforms or partially detaches.

Description

Endoscope and disassembly method thereof CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to Chinese application No. 202411390275.0, filed on September 30, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present specification relates to the technical field of medical devices, in particular to an endoscope and a disassembly method thereof. BACKGROUND

[0003] An endoscope is a kind of digestive endoscope. Through the use of an endoscope, not only can an intuitive basis be provided for clinical diagnosis, but also tumor resection can be performed under direct vision. The elevator on the endoscope is an instrument used to assist in endoscopic examination and treatment. The elevator can be controlled to rise or fall through an operating wire, thereby achieving guidance of surgical instruments. Since the use scenario of the endoscope is inside the human body cavity, strict hygiene requirements are required. After each use, instruments such as the elevator are disassembled for strict disinfection, and after disinfection is completed, the instruments are reinstalled on the endoscope for secondary use. At present, the endoscope usually installs a disassembly part on its surface. This design not only occupies the operation space of the operator, resulting in poor control stability during the operation process, but also has poor sealing performance and the risk of incomplete disinfection. In addition, there are problems such as a relatively complicated disassembly step and an inconvenient disassembly process.

[0004] Therefore, it is desirable to provide an endoscope and a disassembly method thereof. Through a delicate and simple structural design, the disassembly part is arranged inside the housing of the endoscope, thereby improving the sealing performance of the endoscope and achieving rapid disassembly of the endoscope. SUMMARY

[0005] One or more embodiments of the present specification provide an endoscope, comprising: an operation part; an insertion part comprising a control member and an adjusting member, a second end of the control member being in transmission connection with the adjusting member, the control member being configured to adjust the state of a target instrument by controlling the movement of the adjusting member; and a connecting part, a first end of the control member being detachably connected with the connecting part, the operation part being in transmission connection with the connecting part; wherein the endoscope comprises a connected state and a disassembly state, when the endoscope is in the connected state, the first end of the control member remains connected with the connecting part; when the endoscope is in the disassembly state, the connecting part and the first end of the control member are disconnected, when the endoscope is switched from the connected state to the disassembly state, the connecting part and / or the first end of the control member deforms or partially falls off.

[0006] The one or more embodiments of the present specification also provide a disassembly method of an endoscope, the endoscope comprising an operation part, an insertion part comprising a control member and an adjusting member, a second end of the control member being in transmission connection with the adjusting member, the control member being configured to adjust a state of a target instrument by controlling movement of the adjusting member, and a connection part, a first end of the control member being detachably connected with the connection part, the operation part being in transmission connection with the connection part; wherein the endoscope comprises a connection state and a disassembly state, when the endoscope is in the connection state, the first end of the control member remains connected with the connection part, the method comprising: when the endoscope is in the connection state, controlling the operation part to drive the connection part and / or the first end of the control member to deform or partially fall off, the endoscope being switched from the connection state to the disassembly state, the connection part being disconnected with the first end of the control member. BRIEF DESCRIPTION OF DRAWINGS

[0007] The present specification will be further described in the manner of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, in these embodiments, the same numbers represent the same structures, wherein:

[0008] FIG. 1 is an exemplary module diagram of an endoscope according to some embodiments of the present specification;

[0009] FIG. 2 is a structural schematic diagram of an operation part according to some embodiments of the present specification;

[0010] FIG. 3 is an enlarged schematic diagram of A in FIG. 2;

[0011] FIGS. 4A-4C are structural schematic diagrams of an operation part according to some embodiments of the present specification;

[0012] FIGS. 5A-5C are structural schematic diagrams of another operation part according to some embodiments of the present specification;

[0013] FIGS. 6A-6C are structural schematic diagrams of an operation part, a connection part and an insertion part cooperating according to some embodiments of the present specification;

[0014] FIG. 7 is another structural schematic diagram of an operation part, a connection part and an insertion part cooperating according to some embodiments of the present specification;

[0015] FIG. 8 is a structural schematic diagram of a connection barrel according to some embodiments of the present specification;

[0016] FIG. 9 is a structural schematic diagram of another connection barrel according to some embodiments of the present specification;

[0017] Figure 10 is a schematic diagram of another connection tube structure, according to some embodiments of the present specification;

[0018] Figure 11 is a schematic diagram of a disassembly end structure, according to some embodiments of the present specification;

[0019] Figure 12 is a schematic diagram of a disassembly portion structure, according to some embodiments of the present specification;

[0020] Figures 13A-13C are schematic diagrams of another operation portion, connection portion, and insertion portion cooperation structure, according to some embodiments of the present specification;

[0021] Figures 14A-14C are schematic diagrams of another operation portion, connection portion, and insertion portion cooperation structure, according to some embodiments of the present specification;

[0022] Figures 15A-15C are schematic diagrams of another operation portion, connection portion, and insertion portion cooperation structure, according to some embodiments of the present specification;

[0023] Figure 16 is a schematic diagram of an insertion portion structure, according to some embodiments of the present specification;

[0024] Figure 17 is a schematic diagram of a connection end structure, according to some embodiments of the present specification;

[0025] Figure 18 is another schematic diagram of an insertion portion structure, according to some embodiments of the present specification;

[0026] Figure 19 is a schematic diagram of an insertion portion installation, according to some embodiments of the present specification;

[0027] Figure 20 is a schematic diagram of an insertion portion installation process, according to some embodiments of the present specification;

[0028] Figure 21A is a schematic diagram of an insertion portion installation process, according to some embodiments of the present specification;

[0029] Figure 21B is an enlarged schematic diagram of Figure 21A at B;

[0030] Figure 22 is a schematic diagram of an insertion portion installation process, according to some embodiments of the present specification;

[0031] Figure 23 is a schematic diagram of an insertion portion disassembly, according to some embodiments of the present specification;

[0032] Figure 24 is a schematic diagram of an insertion portion disassembly, according to some embodiments of the present specification;

[0033] Figure 25 is a schematic diagram of a transmission passage structure, according to some embodiments of the present specification;

[0034] 100, endoscope; 1, operation part; 11, operation piece; 111, rotating disc; 112, handle tab; 113, connecting piece; 12, driving rod; 13, shell; 14, connecting rod; 2, connecting part; 21, connecting barrel; 211, limiting cavity; 212, limiting barrel petal; 2121, limiting boss; 213, non-limiting barrel petal; 214, limiting channel; 215, auxiliary dismounting table; 216, dismounting groove; 22, connecting plug-in; 221, jack; 3, insertion part; 31, control piece; 311, limiting head; 312, operation wire; 313, connecting end head; 3131, connecting hole; 314, connecting plug; 3121, clamping jaw; 3122, clamping head; 32, adjusting piece; 321, lifting piece; 33, protection tube; 34, head end cap; 341, sleeve; 342, connecting head; 3421, extension; 3422, hook part; 3423, first auxiliary access surface; 343, elastic cap; 35, head end seat; 351, connecting seat; 352, containing groove; 3521, open groove; 3522, tail groove; 3523, second auxiliary access surface; 353, force applying groove; 4, dismounting part; 41, first dismounting sleeve; 411, dismounting channel; 412, dismounting end head; 4121, dismounting boss; 413, moving channel; 42, second dismounting sleeve. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present specification, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some examples or embodiments of the present specification, and for those skilled in the art, the present specification can also be applied to other similar scenarios without creative labor on the basis of these drawings. Unless it is clear from the language context or otherwise stated, the same reference numbers in the drawings represent the same structures or operations.

[0036] It should be understood that the "system", "device", "unit" and / or "module" used herein is a method for distinguishing different components, elements, parts, sections or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

[0037] As shown in the specification and claims, unless the context clearly indicates otherwise, the words "one", "an", "a", and / or "the" do not refer to the singular, but can also include the plural. Generally speaking, the terms "comprise" and "include" only indicate the inclusion of the steps and elements explicitly identified, and these steps and elements do not constitute an exclusive list, and the method or device can also include other steps or elements.

[0038] FIG. 1 is an exemplary module diagram of an endoscope according to some embodiments of the present specification.

[0039] Some embodiments of the present specification provide an endoscope, as shown in FIG. 1, which comprises an operation part 1, a connecting part 2 and an insertion part 3. The insertion part 3 comprises a control member 31 and an adjusting member 32, the second end of the control member 31 is in transmission connection with the adjusting member 32, the first end of the control member 31 is in detachable connection with the connecting part 2, and the operation part 1 is in transmission connection with the connecting part 2. In the present specification, the first end refers to the end close to the operator of the endoscope 100, and the aforementioned first end can also be referred to as the proximal end. Correspondingly, the second end refers to the end away from the operator of the endoscope 100, and the aforementioned second end can also be referred to as the distal end. It is worth noting that the first end and the second end described in the present specification are only used for the description of relative position, and do not refer to specific positions.

[0040] The operation part 1 is a component of the endoscope 100 for the operator (such as a doctor) to manipulate. In some embodiments, the operation part 1 can be used to manipulate the adjusting member 32, for example, to control the action of the adjusting member 32, to adjust the angle of the adjusting member 32, etc. In some embodiments, the operation part 1 can also be used to adjust the disassembly relationship of the endoscope 100. For more information about the adjusting member 32, please refer to the following text of the present specification.

[0041] As shown in FIG. 2, the operation part 1 comprises an operation member 11. The operation member 11 is a structural member of the operation part 1 for the operator to manipulate. For example, the operation member 11 can include but is not limited to a handle, a knob, etc. The operator can control the adjusting member 32 by manipulating the movement (such as rotation or translation) of the operation member 11. For example, the operation member 11 is arranged in the operation part 1 to rotate around an operation axis, and the operator can control the adjusting member 32 by manipulating the rotation of the operation member 11 around the operation axis.

[0042] The operation member 11 can be designed in various structural shapes. As shown in FIG. 2, the operation member 11 can comprise a rotating disc 111, a handle knob 112 and a connecting piece 113, the rotating disc 111 and the connecting piece 113 are coaxially arranged, and the handle knob 112 can rotate clockwise or counterclockwise around the rotating disc 111 as the axis.

[0043] In some embodiments, an identification (hereinafter referred to as a first identification for ease of description) can be arranged on the operation member 11 to assist the operator in manipulating the endoscope 100 through the operation member 11. For example, as shown in FIG. 2, the first identification can comprise four symbols "△", "U", "I" and "○" arranged on the handle knob 112 in the operation member 11. When the adjusting member 32 is a lifting member, "U" represents the upward lifting direction of the lifting member; "I" represents the disassembly direction of the lifting member; "△" "U" combination represents the lifting action of the lifting member; "I" "○" combination represents the disassembly action of the lifting member. The aforementioned first identification can be any four symbols, which can all refer to the above-mentioned actions.

[0044] In addition to the operation member 11, the operation part 1 can further include other structures, such as the driving rod 12, the shell 13, and the like. More details about the operation part 1 can be found in the relevant description below.

[0045] The insertion part 3 is a component located at the second end of the endoscope 100. The second end of the insertion part 3 can enter the patient's body to perform endoscopic surgery.

[0046] The adjustment member 32 of the insertion part 3 is an endoscope accessory, which mainly helps the operator to control the state of the target instrument (e.g., the position, angle, posture, etc. of the target instrument) by controlling the action of the adjustment member 32 during endoscopic surgery, so as to perform more accurate operation. Among them, the target instrument is the instrument that the endoscope 100 needs to control. As shown in FIG. 16, the adjustment member 32 can be a lifting member 321 (such as a lifting forceps), and by adjusting the angle of the lifting member 321, the angle of the target instrument can be adjusted. For example, the target instrument can be a biopsy forceps, which can be arranged on the lifting member 321, and by adjusting the angle of the lifting member 321, the angle of the biopsy forceps can be adjusted, so as to realize the lifting or lowering of the biopsy forceps. For example, the adjustment member 32 is a guide member, and the target instrument is a guide wire, and by adjusting the position and angle of the guide member, the position and angle of the guide wire are adjusted to ensure that the guide wire can be accurately inserted into the opening.

[0047] As described above, the insertion part 3 further includes a control member 31, which is a structure for controlling the action of the adjustment member 32. The second end of the control member 31 is connected with the adjustment member 32, and the movement of the control member 31 can drive the movement of the adjustment member 32. For example, as shown in FIG. 16, the first end of the lifting member 321 is rotatably arranged in the insertion part 3 (such as the head end cap 34 of the insertion part 3), and the second end of the lifting member 321 is connected with the control member 31, and the movement of the control member 31 can drive the rotation of the lifting member 321, so as to adjust the angle of the lifting member 321.

[0048] In addition to the control member 31 and the adjustment member 32, the insertion part 3 can further include other structures, such as the head end cap 34, the head end seat 35, and the like. More details about the insertion part 3 can be found in the relevant description below.

[0049] The connection part 2 is a structural member for connecting the operation part 1 and the insertion part 3 in the endoscope 100. The connection part 2 can be in transmission connection with the operation part 1 (such as the operation member 11 in the operation part 1). Specifically, the connection part 2 can be directly or indirectly connected with the operation member 11 to realize the transmission connection therebetween. For example, other structural members (such as the driving rod 12) can be arranged between the connection part 2 and the operation member 11, and the structural members are respectively connected with the operation member 11 and the connection part 2, so as to realize the transmission connection between the operation member 11 and the connection part 2.

[0050] In some embodiments, the first end of the control member 31 can be detachably connected with the connecting member 2 in various ways. Exemplary ways of connection include, but are not limited to, clamping, screwing, magnetic attraction, etc. More details about the detachable connection between the first end of the control member 31 and the connecting member 2 can be found in the relevant description below.

[0051] In summary, when the connecting member 2 is connected with the first end of the control member 31, since the operation member 11 in the operation part 1 is drivingly connected with the connecting member 2, and the second end of the control member 31 is connected with the adjusting member 32, a driving path can be formed between the operation member 11 in the operation part 1 and the adjusting member 32, which can at least consist of the operation member 11, the connecting member 2, the control member 31 and the adjusting member 32. The operator can control the movement of the operation member 11 in the operation part 1, thereby controlling the movement of the adjusting member 32 through the aforementioned driving path, and further adjusting the state of the target instrument. It can be understood that the movement of a structure in the driving path will drive the movement of other structures in the driving path. As shown in FIG. 25, the rotating disc 111 is coaxially arranged with the connecting piece 113, the handle paddle 112 can rotate around the rotating disc 111 as the axis, the first end of the driving rod 12 can be connected with the connecting piece 113 in the operation member 11, the second end of the driving rod 12 can be connected with the connecting member 2 (not shown in FIG. 25), the connecting member 2 is further connected with the first end of the control member 31, and the second end of the control member 31 is connected with the adjusting member 32, thereby the handle paddle 112, the rotating disc 111, the connecting piece 113, the driving rod 12, the connecting member 2, the control member 31 and the adjusting member 32 collectively form a driving path. When the operator controls the handle paddle 112 to rotate around the rotating disc 111 as the axis, the connecting piece 113 will be driven to rotate around the axis of the rotating disc 111 synchronously, thereby driving the connecting member 2 connected with the connecting piece 113 to move in a first direction, driving the control member 31 connected with the connecting member 2 to move in the first direction, and further driving the adjusting member 32 connected with the control member 31 to rotate. The first direction is parallel to the axial direction of the endoscope 100. When the connecting member 2 is disconnected with the first end of the control member 31, since the driving connection between the connecting member 2 and the control member 31 in the aforementioned driving path is disconnected, the aforementioned driving path is disconnected, and the operator cannot control the movement of the adjusting member 32 by controlling the movement of the operation member 11.

[0052] In some embodiments, the endoscope 100 comprises a connected state and a detached state. When the endoscope 100 is in the connected state, the connection portion 2 and the first end of the control member 31 are connected, and the operator can control the operation member 11 to move, so as to control the adjustment member 32 to move through the aforementioned transmission passage, and then adjust the state of the target instrument. When the endoscope 100 is in the detached state, the connection portion 2 and the first end of the control member 31 are disconnected, and the transmission passage is disconnected. At this time, the operator can remove the control member 31 and / or other part structures (such as the head cap 34) in the insertion portion 3 for disinfection or replacement.

[0053] It is worth noting that in the endoscopic surgery, part of the structure (for example, the operation portion 1) in the endoscope 100 does not need to enter the patient's body, and part of the structure (for example, the insertion portion 3) needs to enter the patient's body for operation, so after the endoscopic surgery is completed, the related structure (for example, the operation portion 1, the connection portion 2 and the detachable portion 4) which does not enter the patient's body does not need to be disinfected or only needs to be simply disinfected, and the related structure (for example, the insertion portion 3) which enters the patient's body in the endoscope 100 is deeply disinfected. Some embodiments of the present specification can remove the control member 31 and / or other part structures (such as the head cap 34) in the insertion portion 3 from the endoscope 100 by detachably connecting the control member 31 and the connection portion 2, so as to disinfect or replace them separately, so as to avoid cross infection.

[0054] In some embodiments, when the endoscope 100 is in the connected state, the operation member 11 can drive the connection portion 2 and / or the first end of the control member 31 to deform or partially fall off, so as to drive the connection portion 2 and the first end of the control member 31 to be disconnected, so that the endoscope 100 is switched from the connected state to the detached state. For example, when the endoscope 100 is in the connected state, the operation member 11 can drive the connection portion 2 to deform and the control member 31 to fall off, so as to drive the connection portion 2 and the first end of the control member 31 to be disconnected, so that the endoscope 100 is switched from the connected state to the detached state. For another example, when the endoscope 100 is in the connected state, the operation member 11 can drive the control member 31 to deform and the connection portion 2 to fall off, so as to drive the connection portion 2 and the first end of the control member 31 to be disconnected, so that the endoscope 100 is switched from the connected state to the detached state. For more information about the foregoing embodiments, please refer to the relevant description hereinafter.

[0055] The endoscope 100 can also comprise other structures. For example, the endoscope 100 can also comprise a detachable portion 4, and the operation member 11 can drive the connection portion 2 and / or the first end of the control member 31 to deform or partially fall off under the action of the detachable portion 4, so as to switch the endoscope 100 from the connected state to the detached state. For more information about the detachable portion 4, please refer to the relevant description hereinafter.

[0056] The foregoing arrangement of some embodiments of the present specification simplifies the operation difficulty and disassembly process of the endoscope 100, so that the operator can control the target instrument and disassemble the structure (e.g., the control member 31) to be disassembled with one hand, thereby facilitating the endoscopic surgery process.

[0057] The operation part 1 will be further described below.

[0058] As shown in FIGS. 2 and 4A-4C, the operation part 1 can further include a housing 13, and the operation member 11 is arranged on the housing 13 of the operation part 1. In some embodiments, as shown in FIGS. 4A-4C, the operation member 11 is rotationally arranged on the housing 13.

[0059] In some embodiments, when the endoscope 100 is in the connected state, the operation member 11 is rotated within a first rotation range, and the transmission passage drives the adjustment member 32 to move to adjust the state of the target instrument. The first rotation range refers to the rotation range of the operation member 11 relative to the first direction when the operation member 11 controls the adjustment member 32 to move. For example, when the endoscope 100 is in the connected state, the operation member 11 is rotated within the first rotation range, and the transmission passage drives the control member 31 to move along the first direction (i.e., the axial direction) to drive the lifting member 321 to rotate around the rotation axis, thereby adjusting the angle of the target instrument.

[0060] The first rotation range can be an angle range between a first angle a1 and a second angle a2, where the first angle a1 is the angle between the handle paddle 112 in the initial position and the first direction, and the second angle a2 is the angle between the handle paddle 112 in the limit control position and the first direction. When the handle paddle 112 is in the initial position, the adjustment member 32 corresponds to the initial state, and when the handle paddle 112 moves from the initial position to the limit control position, the adjustment member 32 changes from the initial state until its state cannot continue to change. For example, when the handle paddle 112 is in the initial position, the lifting member 321 is in the initial state (i.e., not lifted), and when the handle paddle 112 moves from the initial position to the limit control position, the lifting member 321 gradually lifts until it is completely lifted. As shown in FIGS. 5A and 5B, the first angle a1 is the included angle between the central axis M1 of the handle paddle 112 in the initial position in FIG. 5A and the first direction N, and the second angle a2 is the included angle between the central axis M2 of the handle paddle 112 in the limit control position in FIG. 5B and the first direction N. In some embodiments, the first angle a1 can range from 110° to 130°, and preferably, the first angle a1 is 121°. In some embodiments, the second angle a2 can range from 75° to 80°, and preferably, the second angle a2 is 77.4°. In some embodiments, the first rotation range is [75°, 110°). Preferably, the first rotation range is [77.4°, 121°).

[0061] In some embodiments, when the endoscope 100 is in the connected state, the operation member 11 is deformed or partially detached when rotated in the second rotation range, so that the connection part 2 and / or the first end of the control member 31 are disconnected, and the transmission path is disconnected. The second rotation range refers to the rotation range of the operation member 11 relative to the first direction when the operation member 11 is disengaged from the control member 31.

[0062] The second rotation range can be an angle range between the first angle a1 and a third angle a3, where the third angle a3 is the angle between the handle tab 112 in the limit disassembly position and the first direction. When the handle tab 112 moves from the initial position to the limit disassembly position, the first end of the connection part 2 or the control member 31 is gradually deformed until the maximum deformation occurs. As shown in FIG. 5C, the third angle a3 is the included angle between the central axis M3 of the handle tab 112 in the limit disassembly position in FIG. 5C and the first direction N. In some embodiments, the third angle a3 can be in the range of 130°-140°, and preferably the third angle a3 is 131.4°. In some embodiments, the second rotation range is (110°, 140°]. Preferably, the second rotation range is (121°, 131.4°].

[0063] It can be understood that the above data is only an example, and the first rotation range and the second rotation range can be set according to the angle requirements of the adjustment instrument, such as setting a larger angle to meet the stroke requirements of the adjustment instrument.

[0064] In some embodiments, the first rotation range and the second rotation range do not overlap to avoid operator misoperation. For example, the first rotation range is [77.4°, 121°), and the second rotation range is (121°, 131.4°].

[0065] In some embodiments, the first rotation range and the second rotation range can be on the same side or different sides of the initial position. For example, when the handle tab 112 in the operation member 11 is in the initial position, the first angle a1 corresponding to the handle tab 112 is 70°, the first rotation range is (70°, 120°], and the second rotation range is (120°, 140°]. For another example, as shown in FIGS. 5A-5C, for example, when the handle tab 112 in the operation member 11 is in the initial position, the first angle a1 corresponding to the handle tab 112 is 121°, and the first rotation range is [77.4°, 121°), and the second rotation range is (121°, 131.4°), the first rotation range and the second rotation range are respectively on both sides of the first angle a1 to avoid operator misoperation.

[0066] The operation part 1 can be provided with identification marks to remind the operator of the operation performed by the operator when controlling the endoscope 100. For example, as described above, the operation member 11 is provided with a first identification mark. In some embodiments, the housing 13 is also provided with an identification mark (hereinafter referred to as a second identification mark for ease of description), and the second identification mark includes at least one of an initial mark, a control mark, and a disassembly mark, wherein the initial mark is arranged on the housing 13 at a position corresponding to the operation member 11 (e.g., the handle tab 112) in the initial position, the control mark is arranged on the housing 13 at a position corresponding to the operation member 11 in the first rotation range, and the disassembly mark is arranged on the housing 13 at a position corresponding to the operation member 11 in the second rotation range. For example, as shown in FIG. 4A, the handle tab 112 is in the initial position, and the initial mark "I" is arranged on the housing 13 at a position corresponding to the handle tab 112, to remind the operator that the adjustment member 32 is currently in the initial state; as shown in FIG. 4B, the handle tab 112 is in the first rotation range, and the control mark "→" is arranged on the housing 13 at a position corresponding to the handle tab 112, to remind the operator that the adjustment member 32 is currently being controlled to move to adjust the state of the target instrument (e.g., to remind the operator that the lifting member 321 is currently being controlled to lift to control the target instrument to lift); as shown in FIG. 4C, the handle tab 112 is in the second rotation range, and the control mark "O" is arranged on the housing 13 at a position corresponding to the handle tab 112, to remind the operator that the first end of the connecting part 2 is currently being controlled to be disconnected from the control member 31.

[0067] In some embodiments, as shown in FIG. 2, the operation part 1 further includes a driving rod 12. The driving rod 12 is a rod-shaped structure of the operation part 1 for connecting the connecting part 2, wherein the second end of the driving rod 12 can be connected with the first end of the connecting part 2. As shown in FIGS. 6A-6B, the second end of the driving rod 12 can be connected with the first end of the connecting barrel 21. In some embodiments, the operation member 11 can be connected with the driving member 13 through other structural members to drive the driving rod 12 to move in the first direction. The driving rod 12 can be connected with the connecting part 2 in various ways. Exemplary connection methods include but are not limited to welding, bonding, etc.

[0068] In some embodiments, as shown in FIG. 2, the operation part 1 further includes a connecting rod 14, which is an element of the operation part 1 for connecting the operation member 11 and the driving rod 12. One end of the connecting rod 14 is hinged with the operation member 11 (e.g., the connecting piece 113 in the operation member 11), and the other end of the connecting rod 14 is hinged with the driving rod 12. Correspondingly, the transmission passage can also include the connecting rod 14. The connecting rod 14 can also be replaced by any other feasible structure to connect the operation member 11 and the driving member 13. For example, ball screws, gear racks, etc.

[0069] In some embodiments, as shown in FIG. 3, the operating part 1 further comprises a sliding groove 15 and a connecting block 16. The connecting block 16 can be arranged at the first end of the driving rod 12, and the connecting block 16 is hinged to the connecting rod 14 to achieve the transmission connection of the operating member 11, the connecting block 16 and the driving rod 12. The aforementioned sliding groove 15 is arranged in the housing 13 in the first direction (i.e. the axial direction), and the connecting block 16 is arranged in and in sliding fit with the sliding groove 15. Correspondingly, the aforementioned transmission passage can also comprise the connecting block 16. The connecting block 16 is a block structure arranged in the sliding groove 15, and the sliding groove 15 is a groove structure arranged in the housing 13.

[0070] In some embodiments, the sliding groove 15 can comprise a control section (hereinafter referred to as a first control section for ease of description) and a disassembly section (hereinafter referred to as a first disassembly section for ease of description). When the endoscope 100 is in the connected state, the connecting block 16 is in the first control section when the operating member 11 is rotated in the first rotation range, and the connecting block 16 is in the first disassembly section when the operating member 11 is rotated in the second rotation range.

[0071] In some embodiments, the endoscope 100 further comprises a damping part, and the aforementioned damping part can provide resistance to at least part of the structure in the transmission passage. In some embodiments, the damping part at least comprises a damping section arranged in the sliding groove 15, and the damping section can provide resistance to the connecting block 16 when the connecting block 16 enters the damping section. The aforementioned damping section can be formed in various ways. For example, the size of the protruding structure arranged inside the sliding groove 15 can gradually increase along the sliding direction of the connecting block 16, so that the sliding space of the connecting block 16 gradually narrows, etc. In some embodiments, the damping section comprises at least one limiting protrusion 151 towards the inside of the sliding groove 15, and the at least one limiting protrusion 151 abuts against the connecting block 16 to provide resistance to the connecting block 16 when the connecting block 16 enters the damping section.

[0072] In some embodiments, the first disassembly section is provided with a damping section at one end close to the first control section, so that resistance feedback can be provided to the operator when the operator just starts to rotate the operating member 11 in the second rotation range, reminding the operator to subsequently disconnect the connecting part 2 and the first end of the control member 31 from the connected state, so as to reduce the safety risk in the use process of the endoscope 100. Further, when the disassembly part 4 causes the connecting part 2 and / or the first end of the control member 31 to deform or partially fall off, the connecting part 2 will generate a reaction force, so that the operator can feel the resistance. In some embodiments, when the endoscope 100 is in the connected state, the control member 31 and the connecting part 2 can remain connected before the connecting block 16 enters the damping section. After the connecting block 16 enters the damping section, the control member 31 and the connecting part 2 can start to be disconnected. After the connecting block 16 completely passes through the damping section, the control member 31 and the connecting part 2 can be completely disconnected.

[0073] The damping section can also be arranged at other positions of the chute 15. For example, the damping section can also be arranged at one end of the first control section of the chute 15 close to the first dismounting section. The damping section can also be arranged at other positions in the endoscope 100. For example, the damping section can also be arranged on the housing 13.

[0074] Some embodiments of the present specification can facilitate the operator to control the target instrument in the endoscope 100 by the above-mentioned related arrangement of the insertion part 1 with one hand, and effectively remind the operator of the operation currently performed, avoid misoperation, and ensure the safety of endoscopic surgery.

[0075] The detachable arrangement of the connecting part 2 and the first end of the control member 31 will be further described below.

[0076] In some embodiments, the connecting part 2 and / or the first end of the control member 31 can be arranged in various ways to enable the connecting part 2 and / or the first end of the control member 31 to be deformed or partially detached, thereby achieving the detachable connection of the connecting part 2 and the first end of the control member 31.

[0077] In some embodiments, at least one of the connecting part 2 and the first end of the control member 31 comprises a connecting barrel 21 which is at least partially radially expandable, and the connecting barrel 21 comprises a limiting cavity 211 therein. At least one of the connecting part 2 and the first end of the control member 31 comprises a limiting head 311 which is detachably placed in the limiting cavity 211, thereby achieving the detachable connection of the connecting part 2 and the first end of the control member 31. Wherein, the radial direction is perpendicular to the first direction.

[0078] For example, the connecting part 2 comprises a connecting barrel 21, the first end of the connecting barrel 21 is connected with the second end of the driving member 12, the connecting barrel 21 comprises a limiting cavity 211 therein, the first end of the control member 31 comprises a limiting head 311, and the second end of the connecting barrel 21 is detachably connected with the limiting head 311. The limiting head 311 is detachably placed in the limiting cavity 211, and the second end of the connecting barrel 21 is radially expandable. For another example, the connecting part 2 comprises a limiting head 311, the first end of the limiting head 311 is connected with the second end of the driving member 12, the first end of the control member 31 comprises a connecting barrel 21, the connecting barrel 21 comprises a limiting cavity 211 therein, and the first end of the connecting barrel 21 is detachably connected with the limiting head 311. The limiting head 311 is detachably placed in the limiting cavity 211, and the first end of the connecting barrel 21 is radially expandable.

[0079] The limiting head 311 is a structure for cooperating with the connecting barrel 21. The limiting head 311 can be designed in various structural shapes which can cooperate with the connecting barrel 21 to achieve the connection of the connecting part 2 and the first end of the control member 31. For example, the limiting head 311 can be designed in a conical shape, a spherical shape, etc.

[0080] The connecting barrel 21 can be arranged in various ways to enable it to expand at least partially in its radial direction. For example, the connecting barrel 21 can be made of a flexible elastic material.

[0081] In some embodiments, the disassembly end of the connecting barrel 21 comprises at least one limiting barrel lobe 212 distributed along the circumference of the connecting barrel 21. Wherein, the disassembly end is the end of the connecting barrel 21 that can be deformed, and correspondingly, the connecting barrel 21 can also comprise a connecting end, which is the end of the connecting barrel 21 that does not deform, and the connecting barrel 21 can be connected to other structures (such as the driving rod 12 or the control member 31) through the connecting end. In other words, the disassembly end of the connecting barrel 21 is the end closer to the limiting head 311, and the connecting end of the connecting barrel 21 is the end farther away from the limiting head 311. The disassembly end can be one of the first end and the second end, and the connecting end can be the other of the first end and the second end. The relative positions of the disassembly end and the connecting end to other structures are described below in this specification, and the specific relative positions referred to by the disassembly end and the connecting end can refer to the specific arrangement of the disassembly end and the connecting end in the connecting barrel 21 in this embodiment. The limiting cavity 211 can be formed at least by the inner wall of the at least one limiting barrel lobe 212, and the disassembly end of the at least one limiting barrel lobe 212 can expand in the radial direction of the connecting barrel 21. Wherein, the inner wall of the limiting barrel lobe 212 refers to the side of the limiting barrel lobe 212 closer to the inside in the radial direction. The length of the limiting barrel lobe 212 can be set according to actual conditions.

[0082] The limiting barrel lobe 212 is a structure that can limit the position of the limiting head 311 in the first direction. For example, as shown in FIG. 8, the disassembly end of the connecting barrel 21 comprises two limiting barrel lobes 212 distributed along the circumference of the connecting barrel 21. For another example, as shown in FIG. 9 and FIG. 10, the disassembly end of the connecting barrel 21 comprises one limiting barrel lobe 212 distributed along the circumference of the connecting barrel 21.

[0083] In some embodiments, the limiting barrel lobe 212 comprises a limiting boss 2121, which protrudes inwardly in the radial direction of the connecting barrel 21, and the end face of the limiting boss 2121 located at the connecting end constitutes the end face of the limiting cavity 211 located at the disassembly end, so as to limit the position of the limiting head 311 in the axial direction within the limiting cavity 211.

[0084] In some embodiments, as shown in FIG. 9 or FIG. 10, the endoscope 100 further comprises at least one non-limiting cylinder petal 213 distributed along the circumference of the connecting cylinder 21, and the limiting cavity 211 can also be formed by the inner wall of the at least one non-limiting cylinder petal 213 and the inner wall of the at least one limiting cylinder petal 212. The non-limiting cylinder petal 213 can avoid the limiting head 311 from falling out of or swinging in the limiting cavity 211 during movement. The non-limiting cylinder petal 213 does not comprise the limiting boss 2121, and thus does not limit the position of the limiting head 311 in the first direction, and thus the non-limiting cylinder petal 213 can or can not be deformed when the endoscope 100 is switched from the connected state to the disassembled state. For example, as shown in FIG. 9, the non-limiting cylinder petal 213 is arranged on the connecting cylinder 21 along the circumference of the connecting cylinder 21. For another example, as shown in FIG. 11, the non-limiting cylinder petal 213 is arranged on the end of the disassembling end head 412 close to the connecting cylinder 21, and the non-limiting cylinder petal 213 extends into the connecting cylinder 21 of FIG. 10.

[0085] In some embodiments, the at least one limiting cylinder petal 212 forms a limiting passage 214 in communication with the limiting cavity 211. When the disassembling end of the at least one limiting cylinder petal 212 is deformed, the radial dimension of the limiting passage 214 changes, so that the limiting head 311 can exit the limiting cavity 211 from the limiting passage 214. As shown in FIG. 8, the limiting boss 2121 in the at least one limiting cylinder petal 212 forms a hollow passage, and the limiting passage 214 is formed by the hollow passage. As shown in FIG. 9, the limiting passage 214 can also be formed by the hollow passage and the inner wall of the non-limiting cylinder petal 213.

[0086] In some embodiments, the connecting cylinder 21 comprises an open state and a closed state, and the open state allows the limiting head 311 to freely enter and exit the connecting cylinder 21, and the closed state limits the limiting head 311 to freely enter and exit the connecting cylinder 21. When the connecting cylinder 21 is in the closed state, the endoscope 100 is in the connected state, the radial dimension of the limiting passage 214 is smaller than the maximum radial dimension of the limiting head 311, and the limiting boss 2121 can limit the position of the limiting head 311 in the axial direction in the limiting cavity 211 to ensure the connection between the limiting head 311 and the connecting cylinder 21. When the connecting cylinder 21 is switched from the closed state to the open state, the endoscope 100 is switched from the connected state to the disassembled state, the disassembling end of the at least one limiting cylinder petal 212 gradually expands along the radial direction of the connecting cylinder 21, the limiting boss 2121 gradually moves away from the limiting head 311 in the radial direction, until the radial dimension of the limiting passage 214 is not smaller than the maximum radial dimension of the limiting head 311, the limiting boss 2121 cannot limit the position of the limiting head 311 in the axial direction in the limiting cavity 211, and the first end of the control member 31 is disconnected from the connecting portion 2.

[0087] When the radial dimension of the limiting channel 214 is not less than the maximum radial dimension of the limiting head 311, even if the limiting head 311 is still in the limiting cavity 211, since the limiting boss 2121 has already been unable to limit the position of the limiting head 311 in the axial direction, the movement of one of the connecting barrel 21 and the limiting head 311 will no longer drive the movement of the other, so it can be considered that the connection between the connecting part 2 and the first end of the control part 31 has been released, and the endoscope 100 has been switched from the connected state to the disassembled state. The operator can determine whether to control the limiting head 311 to exit the limiting cavity 211 according to the needs.

[0088] When the endoscope 100 is in the connected state, if it is necessary to disassemble the control part 31, it is only necessary to switch the connecting barrel 21 from the closed state to the open state through the operating part 11. If it is necessary to install the limiting head 311 into the connecting barrel 21, the connecting barrel 21 can be kept in the open state first, the limiting head 311 is put into the connecting barrel 21, and then the connecting barrel 21 is switched to the closed state, so that the connection between the limiting head 311 and the connecting barrel 21 is completed. This way simplifies the disassembly steps of the control part 31 in the endoscope 100, and the operation is simple and intuitive.

[0089] The following will describe the setting mode of the detachable connection between the connecting part 2 and the first end of the control part 31 through multiple embodiments.

[0090] FIGS. 6A to 6C show a first embodiment of the detachable connection between the connecting part 2 and the first end of the control part 31. In the first embodiment, the connecting part 2 includes a connecting barrel 21, and the first end of the control part 31 is provided with a limiting head 311. Correspondingly, the disassembly end is the second end, the connection end is the first end, the first end of the connecting barrel 21 is connected with the second end of the operating part 1 (such as the driving part 12 in the operating part 1), the limiting cavity 211 is arranged at the second end of the connecting barrel 21, and the limiting head 311 is detachably arranged in the limiting cavity 211.

[0091] In the first embodiment, when the endoscope 100 is in the connected state, the operation part 1 can drive the control member 31 to move through the connecting part 2. For example, when the endoscope 100 is in the connected state, the operation part 1 can drive the connecting barrel 21 to move from the position shown in FIG. 6B to the position shown in FIG. 6A along the first direction towards the second end, at this time, the first end surface of the limiting cavity 211 abuts against the first end surface of the limiting head 311 to drive the control member 31 to move along the first direction towards the second end through the limiting head 311. For another example, when the endoscope 100 is in the connected state, the operation part 1 can drive the connecting barrel 21 to move from the position shown in FIG. 6A to the position shown in FIG. 6B along the first direction towards the first end, at this time, the second end surface of the limiting cavity 211 abuts against the second end surface of the limiting head 311 to drive the control member 31 to move along the first direction towards the first end through the limiting head 311. Based on the foregoing arrangement, the control member 31 can be controlled to move along the first direction towards different sides through the operation part 1, and further control the adjusting member 32 to move to adjust the state of the target instrument. The first end surface can be a surface of the corresponding structure located at the first end, and the second end surface can be a surface of the corresponding structure located at the second end.

[0092] In the first embodiment, the second end of the connecting barrel 21 can be provided with at least one limiting barrel petal 212, when the endoscope 100 is in the connected state, the operation part 1 can drive the second end of the at least one limiting barrel petal 212 to deform, so that the limiting head 311 can exit the limiting cavity 211 from the limiting passage 214, and the limiting head 311 falls off from the connecting barrel 21. When the endoscope 100 is in the connected state, the operation part 1 can drive the connecting barrel 21 to move from the position shown in FIG. 6A to the position shown in FIG. 6C along the first direction towards the second end, at this time, the second end of the at least one limiting barrel petal 212 of the connecting barrel 21 deforms, so that the radial dimension of the limiting passage 214 is not less than the maximum radial dimension of the limiting head 311, at this time, the endoscope 100 is switched from the connected state to the disassembled state, and the connecting part 2 is disconnected from the first end of the control member 31. If the operator controls the limiting head 311 shown in FIG. 6C to continue to move along the first direction towards the second end, the limiting head 311 will exit the limiting cavity 211 from the limiting passage 214, the first end of the control member 31 falls off from the connecting part 2, and the control member 31 is separated from the connecting part 2.

[0093] Fig. 13A to Fig. 13C show a second embodiment of detachable connection between the connecting part 2 and the first end of the control member 31. Fig. 14A to Fig. 14C show a third embodiment of detachable connection between the connecting part 2 and the first end of the control member 31. The second embodiment and the third embodiment are similar to the first embodiment in structure, except that the second embodiment and the third embodiment are provided with a non-limiting cylinder petal 213. More information about the second embodiment and the third embodiment can be found in the relevant description of the first embodiment. It is worth mentioning that, since the non-limiting cylinder petal 213 in the second embodiment is arranged in the dismounting end head 412, and the non-limiting cylinder petal 213 in the third embodiment is arranged on the connecting cylinder 21, while the dismounting end head 412 is not a structure in the transmission passage, and the connecting cylinder 21 is a structure in the transmission passage, therefore, the non-limiting cylinder petal 213 in the second embodiment will not move under the drive of the operating part 1, while the non-limiting cylinder petal 213 in the third embodiment will move under the drive of the operating part 1.

[0094] Fig. 7 shows a fourth embodiment of detachable connection between the connecting part 2 and the first end of the control member 31. In the fourth embodiment, the connecting part 2 comprises a limiting head 311, and the first end of the control member 31 is provided with a connecting cylinder 21, correspondingly, the dismounting end is the first end, and the connecting end is the second end. The first end of the limiting head 311 is connected to the second end of the operating part 1 (such as the driving member 12 in the operating part 1), and the limiting cavity 211 is arranged at the first end of the connecting cylinder 21, and the limiting head 311 is detachably arranged in the limiting cavity 211.

[0095] In the fourth embodiment, when the endoscope 100 is in the connected state, the operating part 1 can drive the control member 31 to move through the connecting part 2. For example, when the endoscope 100 is in the connected state, the operating part 1 can drive the limiting head 311 shown in Fig. 7 to move along the first direction towards the second end, at this time, the second end surface of the limiting head 311 abuts against the second end surface of the limiting cavity 211, so as to drive the control member 31 to move along the first direction towards the second end through the connecting cylinder 21. For another example, when the endoscope 100 is in the connected state, the operating part 1 can drive the limiting head 311 shown in Fig. 7 to move along the first direction towards the first end, at this time, the first end surface of the limiting head 311 abuts against the first end surface of the limiting cavity 211, so as to drive the control member 31 to move along the first direction towards the first end through the connecting cylinder 21. Based on the foregoing arrangement, the control member 31 can be controlled to move along the first direction towards different sides by the operating part 1, so as to control the adjusting member 32 to move to adjust the state of the target instrument.

[0096] In the fourth embodiment, the first end of the connecting tube 21 can be provided with at least one limiting tube petal 212, when the endoscope 100 is in the connected state, the operating part 1 can drive the first end of the at least one limiting tube petal 212 to deform, so that the limiting head 311 can exit the limiting cavity 211 from the limiting passage 214, the first end of the control piece 31 falls off from the connecting part 2, and the control piece 31 is separated from the connecting part 2. When the endoscope 100 is in the connected state, the operating part 1 can drive the connecting tube 21 to continuously move in the first direction towards the first end until the first end of the at least one limiting tube petal 212 of the connecting tube 21 deforms, so that the radial dimension of the limiting passage 214 is not less than the maximum radial dimension of the limiting head 311, at this time, the endoscope 100 is switched from the connected state to the disassembled state, and the connecting part 2 is disconnected with the first end of the control piece 31. If the operator controls the limiting head 311 shown in FIG. 6C to continuously move in the first direction towards the first end, the limiting head 311 will exit the limiting cavity 211 from the limiting passage 214, the first end of the control piece 31 falls off from the connecting part 2, and the control piece 31 is separated from the connecting part 2.

[0097] In some embodiments, the disassembling part 4 can drive the disassembly end of the limiting tube petal 212 to expand in the radial direction of the connecting tube 21, so that the connecting tube 21 is switched from the closed state to the open state, and the endoscope 100 is switched from the connected state to the disassembled state.

[0098] In some embodiments, as shown in FIG. 12, the disassembling part 4 includes a disassembling sleeve 41 (hereinafter referred to as a first disassembling sleeve 41 for ease of description), and the first disassembling sleeve 41 is provided with a disassembling passage 411 extending in the first direction. When the endoscope 100 is in the connected state, the operating part 1 can drive the connecting tube 21 to move in the first direction towards the disassembly end to a disassembly position in the disassembling passage 41, and when the operating part 1 continues to drive the connecting tube 21 to move towards the disassembly end, the disassembling part 4 will drive the disassembly end of the at least one limiting tube petal 212 to expand in the radial direction of the connecting tube 21, and the endoscope 100 is switched from the connected state to the disassembled state. The disassembly position is the position at which the at least one limiting tube petal 212 begins to deform.

[0099] The first disassembling sleeve 41 can be connected with the second end of the shell 13 or arranged in the shell 13. In actual application scenarios, the operating part 1, the connecting part 2 and the disassembling part 4 are not in direct contact with the patient and can be reused, while the control piece 31 is set to be disposable or used for a limited number of times according to actual needs, so that the reusable structures are integrated to facilitate maintenance of the endoscope 100.

[0100] In some embodiments, as shown in FIG. 12, the dismounting channel 41 comprises a control section D1 (hereinafter referred to as a second control section D1 for ease of description) and a dismounting section D2 (hereinafter referred to as a second dismounting section D2 for ease of description), the second control section D1 is located at the connecting end of the dismounting channel 41, and the second dismounting section D2 is located at the dismounting end of the dismounting channel 41, the second control section D1 and the second dismounting section D2 are arranged and communicated along the first direction, and the dismounting position is located in the second dismounting section D2. For example, when the connecting part 2 comprises the connecting barrel 21 and the limiting head 311 is arranged at the first end of the control member 31, the second control section D1 and the second dismounting section D2 can be located at the first end and the second end of the dismounting channel 41, respectively. For another example, when the connecting barrel 21 is arranged at the first end of the control member 31 and the connecting part 2 comprises the limiting head 311, the second control section D1 and the second dismounting section D2 can be located at the second end and the first end of the dismounting channel 41, respectively. The radial dimension of the second control section D1 is smaller than the radial dimension of the second dismounting section D2, so as to avoid the radial expansion of the dismounting end of the at least one limiting barrel petal 212 in the second control section D1 along the connecting barrel 21, to ensure the reliable connection between the control member 31 and the connecting part 2, and to ensure the space for the radial expansion of the dismounting end of the at least one limiting barrel petal 212 along the connecting barrel 21 in the second dismounting section D2.

[0101] The dismounting end of the limiting barrel petal 212 can be expanded radially along the connecting barrel 21 in the second dismounting section D2 in various ways. For example, the dismounting end of the limiting barrel petal 212 and the dismounting position are both provided with magnets with opposite magnetic poles, to drive the dismounting end of the limiting barrel petal 212 to expand radially along the connecting barrel 21 in the dismounting position. For another example, the elastic member is arranged between the plurality of limiting barrel petals 212, the elastic member between the plurality of limiting barrel petals 212 is compressed when the connecting barrel 21 is in the second control section D1, the radial dimension of the dismounting position is larger than that of the second control section D1, and the elastic force of the elastic member drives the plurality of limiting barrel petals 212 to expand radially along the connecting barrel 21.

[0102] In some embodiments, as shown in FIG. 12, the dismounting position of the second dismounting section D2 is provided with a dismounting end head 412, when the endoscope 100 is in the connected state, the operating part 1 can drive the connecting barrel 21 to move in the first direction in the dismounting channel 41 to abut against the dismounting end head 412, when the connecting barrel 21 continues to move in the first direction in the dismounting channel 41 towards the dismounting end, the dismounting end head 412 will apply a force to the at least one limiting barrel petal 212 to drive the dismounting end of the at least one limiting barrel petal 212 to expand radially along the connecting barrel 21, and the endoscope 100 is switched from the connected state to the dismounting state.

[0103] In some embodiments, as shown in FIG. 8, the disassembly end of at least one limiting cylinder petal 212 can include an auxiliary disassembly platform 215, and a disassembly groove 216 is formed by the inner wall of the auxiliary disassembly platform 215 in at least one limiting cylinder petal 212, the disassembly groove 216 is in communication with the limiting channel 214, and the radial dimension of the disassembly groove 216 gradually decreases from the disassembly end to the connection end along the first direction. As shown in FIG. 9, the disassembly end of at least one non-limiting cylinder petal 213 also includes an auxiliary disassembly platform 215, and the disassembly groove 216 can be formed by the inner wall of the auxiliary disassembly platform 215 in at least one limiting cylinder petal 212 and the inner wall of the auxiliary disassembly platform 215 in at least one non-limiting cylinder petal 213. In some embodiments, the auxiliary disassembly platform 215 provided at the disassembly end of at least one limiting cylinder petal 212 and the limiting boss 2121 can be separately provided or an integral structure as shown in FIG. 8, and the end face of the connection end of the aforementioned integral structure can form the end face of the disassembly end of the limiting cavity 211, and the end face of the disassembly end of the aforementioned integral structure can form the disassembly groove 216.

[0104] In some embodiments, as shown in FIG. 12, the connection end of the disassembly and assembly end head 412 includes a disassembly protrusion 4121, and the radial dimension of the disassembly protrusion 4121 gradually increases from the connection end to the disassembly end along the first direction. When the endoscope 100 is switched from the connected state to the disassembly state, the disassembly protrusion 4121 abuts against the disassembly groove 216 and drives the disassembly end of at least one limiting cylinder petal 212 to expand radially along the connection cylinder 21, so that the limiting head 311 can exit the limiting cavity 211. It can be understood that since the disassembly protrusion 4121 and the disassembly groove 216 are both inclined surfaces, when the connection cylinder 21 moves to abut against the disassembly and assembly end head 412, the disassembly groove 216 can guide the disassembly protrusion 4121 to deform the connection cylinder 21 more easily. It should be noted that the maximum radial dimension of the disassembly groove 216 should be greater than the radial dimension of the connection end of the disassembly protrusion 4121, so as to ensure that the disassembly protrusion 4121 is located in the disassembly groove 216 when the two abut against each other.

[0105] The disassembly and assembly end head 412 can be provided with a moving channel 413 extending along the first direction, and when the endoscope 100 is in the disassembly state, the limiting head 311 moves from the limiting cavity 211 into the moving channel 413.

[0106] In some embodiments, in addition to being detachably connected by the connection cylinder 21 and the limiting head 311, the first end of the connecting part 2 and / or the control part 31 can also be detachably provided by other means.

[0107] In some embodiments, as shown in FIG. 15A, the first end of the control member 31 comprises a connecting plug 314, the first end of the connecting plug 314 is provided with two clamping jaws 3121, the first end of the aforementioned clamping jaws 3121 is provided with a clamping head 3122, the connecting portion 2 comprises a connecting plug 22, the aforementioned connecting plug 22 is provided with a plug hole 221, the connecting plug 314 is detachably connected with the connecting plug 22, wherein when the connecting plug 314 is connected with the connecting plug 22, the clamping head 3122 is arranged in the plug hole 221 and protrudes outward in the radial direction, so as to keep the connecting portion 2 connected with the first end of the control member 31. The clamping jaw 3121 can be deformed inward in the radial direction, and the connecting portion 2 is disconnected with the first end of the control member 31, so that the clamping head 3122 can be detached from the plug hole 221.

[0108] In some embodiments, the disassembling portion 4 can further comprise a second disassembling sleeve 42, the second disassembling sleeve 42 is provided with a disassembling channel extending in the first direction, the disassembling channel in the second disassembling sleeve 42 also comprises a control section D3 (hereinafter referred to as a third control section D3 for convenience of description) arranged at the second end and a disassembling section D4 (hereinafter referred to as a third disassembling section D4 for convenience of description) arranged at the first end, the radial dimension of the third control section D3 is greater than that of the third disassembling section D4. The radial dimension of the third disassembling section D4 is not less than the radial dimension of the connecting plug 314, and the radial dimension of the third disassembling section D4 is less than the maximum radial dimension between the two clamping heads 3122 when the clamping jaw 3121 is not deformed. Similar to the first disassembling sleeve 41, the second disassembling sleeve 42 can be connected with the second end of the shell 13 or arranged in the shell 13.

[0109] As shown in FIG. 15A, when the endoscope 100 is in the connected state, the operating portion 1 can drive the connecting plug 314 and the connecting plug 22 in the connection to move in the third control section D3. When the operating portion 1 drives the connecting plug 314 and the connecting plug 22 in the connection to move to the third disassembling section D4 shown in FIG. 15B and FIG. 15C when the endoscope 100 is in the connected state, since the radial dimension of the third disassembling section D4 is not less than the radial dimension of the connecting plug 314, the connecting plug 314 can move in the third disassembling section D4 under the driving of the driving rod 12 in the first direction towards the first end, and the radial dimension of the third disassembling section D4 is less than the maximum radial dimension between the two clamping heads 3142 when the clamping jaw 3141 is not deformed, so that the third disassembling section D4 will drive the clamping jaw 3141 to deform inward in the radial direction, so that the clamping head 3142 is detached from the plug hole 221, the connecting portion 2 is disconnected with the first end of the control member 31, and the endoscope 100 is switched from the connected state to the disassembling state.

[0110] In some embodiments, as shown in FIGS. 15A-15C, the second end of the connecting plug 314 is provided with a limiting member 3143, the radial dimension of which is greater than the limiting dimension of the third dismounting section D4, so that the connecting plug 314 cannot be fully inserted into the third dismounting section D4, so as to facilitate the disengagement of the clamping head 3142 from the socket 221, and the disconnection of the connecting portion 2 from the first end of the control member 31.

[0111] In some embodiments, the first end of the control member 31 and the connecting portion 2 are interchangeably provided with structures. For example, the first end of the control member 31 comprises the connecting plug 314, and the connecting portion 2 comprises the connecting socket 221.

[0112] Some embodiments of the present specification can facilitate the operator to dismount part of the structure (e.g., the control member 31) in the endoscope 100 for disinfection or replacement, so as to avoid cross infection, by providing the connecting portion 2 and the first end of the control member 31 with detachable connection, and by deforming or partially disengaging the connecting portion 2 and / or the first end of the control member 31 through the dismounting portion 4 to disconnect the connecting portion 2 from the control member 31.

[0113] The insertion portion 3 will be further described hereinafter.

[0114] As described above, the insertion portion 3 comprises the control member 31. In some embodiments, as shown in FIGS. 6A-6C, the control member 31 comprises an operating wire 312 and a limiting head 311 connected to the first end of the operating wire 312. The operating wire 312 refers to a structural member for controlling the adjusting member 32. In some embodiments, the operating wire 312 can be made of metal material. For example, the operating wire 312 can be a steel wire or the like. The operating wire 312 can also be made of any other feasible material, such as nylon rope or the like.

[0115] In some embodiments, the second end of the operating wire 312 can be connected to (e.g., hinged to, etc.) the adjusting member 32 (e.g., the mounting hole 321 at the second end of the adjusting member 32), so as to control the action of the adjusting member 32. For example, as shown in FIG. 16, the second end of the operating wire 312 is connected to the second end of the lifting member 321, so as to control the lifting member 321 to lift upward.

[0116] In some embodiments, the first end of the operating wire 312 can be directly fixedly connected (e.g., glued, welded, etc.) to the limiting head 311.

[0117] In some embodiments, as shown in FIG. 17, the control member 31 further comprises a connecting end 313, and the limiting head 311 can be further arranged at a first end of the connecting end 313, and the connecting end 313 is fixedly connected with a first end of the operating wire 312. The connecting end 313 can be connected with the operating wire 312 by means of hinging, clamping or the like. For example, as shown in FIG. 17, the connecting end 313 is provided with a connecting hole 3131, and the first end of the operating wire 312 is arranged in the connecting hole 3131 by means of hinging or the like, so as to connect the connecting end 313 with the operating wire 312. In some embodiments, the connecting end 313 can also be integrally formed with the operating wire 312.

[0118] In some embodiments, as shown in FIG. 7, the first end of the operating wire 312 can also be connected with the connecting barrel 21. The connection of the operating wire 312 with the connecting barrel 21 can refer to the connection of the operating wire 312 with the limiting head 311 described above.

[0119] In some embodiments, the insertion part 3 further comprises a protection tube 33, a first end of the protection tube 33 is connected with the operating part 1, and the control member 31 is arranged in the protection tube 33. For example, the first end of the protection tube 33 can be directly connected with the shell 13, or connected with a second end of the detachable part 4, and a first end of the detachable part 4 is connected with the shell 13.

[0120] In some embodiments, as shown in FIGS. 18 and 19, the insertion part 3 further comprises a head end cap 34 and a head end seat 35, the head end seat 35 is connected with a second end of the protection tube 33, the head end seat 34 is detachably connected with the head end cap 34, and the lifting member 321 is rotationally connected with the head end cap 34. When the endoscope 100 is in the connected state, the first end of the control member 31 is kept connected with the connecting part 2, the head end seat 34 is kept connected with the head end cap 34, and the operating member 1 can drive the control member 31 to rotate the lifting member 321 around the rotation axis B through the transmission channel, so as to adjust the angle of the target instrument. When the endoscope 100 is in the detached state, the connecting part 2 is disconnected with the first end of the control member 31, the head end cap 34 is disconnected with the head end seat 35, and the head end cap 34 and the control member 31 can be detached from the endoscope 100. The head end seat 35 is a structural member for mounting the target instrument in the insertion part 3. The head end cap 34 refers to a structural member sleeved on the head end seat 35.

[0121] It can be understood that the first end of the control member 31 is detachably connected with the connecting portion 2, the second end of the control member 31 is connected with the head cap 34, and the head cap 34 is detachably connected with the head seat 35. Therefore, by disconnecting the first end of the control member 31 from the connecting portion 2 and disconnecting the head cap 34 from the head seat 35, the head cap 34 and the control member 31 can be removed from the endoscope 100. For example, after the endoscopic surgery is completed, the operator can first drive the endoscope 100 from the connected state to the disassembled state by operating the operating member 11, and then control the head cap 34 to be disconnected from the head seat 35, and the head cap 34 is taken out of the endoscope 100, thereby driving the control member 31 connected with the head cap 34 to be taken out of the endoscope 100 together, so as to facilitate the disinfection or replacement of the head cap 34 and the control member 31, thereby avoiding cross infection. For another example, the operator can first control the head cap 34 to be disconnected from the head seat 35, and then drive the endoscope 100 from the connected state to the disassembled state by operating the operating member 11, and the head cap 34 and the control member 31 are taken out of the endoscope 100 together. It should be noted that the structure is complex, and the operating wire 312 in the control member 31 and the head cap 34 can be in direct contact with the human body tissue or organ during the endoscopic surgery. Therefore, the head cap 34 and the control member 31 are easily contaminated during the endoscopic surgery and need to be cleaned. Some embodiments of the present application can take the head cap 34 and the control member 31 out of the endoscope 100 together by the above-mentioned arrangement, so as to facilitate the disinfection or replacement of the head cap 34 and the control member 31, thereby simplifying the disinfection operation of the endoscope 100 and reducing the risk of cross infection.

[0122] The present application will describe how to detachably connect the head cap 34 and the head seat 35 in the following.

[0123] The head seat 35 comprises a connecting seat 351 arranged at the first end, which is a structure arranged at the first end of the head seat 35 for connecting the head cap 34. The head cap 34 comprises a sleeve 341 and an elastic cap 343 arranged at the second end of the sleeve 341, and the sleeve 341 is pluggable with the connecting seat 351. The sleeve 341 is a tubular structure of the head cap 34 for connecting with the connecting seat 351. The elastic cap 343 is a structure arranged at the second end of the sleeve 341 and having elastic performance. The material of the elastic cap 343 can include but is not limited to elastic materials such as rubber and silicone. The sleeve 341 and the elastic cap 343 can be an integral structure or a split structure. For example, the sleeve 341 can be connected with the elastic cap 343 by bonding or the like. The materials of the sleeve 341 and the elastic cap 343 can be the same or different. For example, the sleeve 341 and the elastic cap 343 can both be made of elastic materials such as silicone, so as to avoid damage to the human body tissue or organ during use of the endoscope 100.

[0124] Some embodiments of the present specification can achieve quick disconnection or connection between the head end seat 35 and the head end cap 34 by setting the connecting seat 351 and the sleeve 341 of the head end cap 34 as pluggable. Wherein, the pluggable between the connecting seat 351 and the sleeve 341 means that the connecting seat 351 can be inserted into or pulled out of the sleeve 341. In some embodiments, the pluggable between the connecting seat 351 and the sleeve 341 can be achieved in various ways. For example, through snap connection, interference fit and the like.

[0125] In some embodiments, one of the head end seat 35 and the head end cap 34 is provided with a receiving groove 352, and the other is provided with a connecting head 343. At least one of the connecting head 342 or the receiving groove 352 includes a natural state and a preset deformation state that can be restored to the natural state, in the natural state, the end face of the connecting head 342 is misaligned with the receiving groove 352, and in the preset deformation state, the connecting head 342 can enter or move out of the receiving groove 352.

[0126] The receiving groove 352 refers to a groove structure for accommodating or fixing the connecting head 342.

[0127] The connecting head 342 refers to a structural member for cooperating with the receiving groove 352 to connect the head end seat 35 and the head end cap 34. In some embodiments, the head end seat 35 and the head end cap 34 can be clamped by the receiving groove 352 and the connecting head 342 to achieve the connection and locking between them.

[0128] In some embodiments, the receiving groove 352 and the connecting head 342 are correspondingly provided, and the structural shape and size of the receiving groove 352 and the connecting head 342 are not limited, which can achieve mutual cooperation to stably connect the head end seat 35 and the head end cap 34. For example, the connecting head 342 can be designed as a hook to facilitate clamping with the receiving groove 352.

[0129] The natural state refers to a state in which the connecting head 342 or the accommodating groove 352 on the elastic cap 343 does not deform. In the natural state, during the process of inserting the sleeve 341 into the connecting seat 351, the second end face of the connecting head 342 is misaligned with the accommodating groove 352, at this time, the connecting head 342 cannot directly enter the accommodating groove 352, and the head end seat 35 and the head end cap 34 are in an unstable connection state. The aforementioned misalignment can be understood as the end faces of two structures or components in the same direction and at the same position cannot be aligned. For example, the first end face of the connecting head 342 and the opening of the accommodating groove 352 cannot be aligned in the Y direction shown in FIG. 19, at this time, the first end face of the connecting head 342 and the opening of the accommodating groove 352 are misaligned in the Z direction. For another example, the second end face of the connecting head 342 and the opening of the accommodating groove 352 cannot be aligned in the Y direction shown in FIG. 19, at this time, the second end face of the connecting head 342 and the opening of the accommodating groove 352 are misaligned in the Z direction. In some embodiments, the size of the misalignment can be set according to actual application requirements. For example only, if the second end face of the connecting head 342 and the accommodating groove 352 are misaligned in the Z direction, the size of the misalignment can range from 0.5 mm to 0.9 mm. For example, 0.6 mm.

[0130] The preset deformation state refers to a state in which the connecting head 342 or the accommodating groove 352 on the elastic cap 343 should be in after a preset deformation amount occurs. In the preset deformation state, the connecting head 342 can directly enter or move out of the accommodating groove 352.

[0131] It can be understood that, compared with the clamping mode of the two side cantilevers, the limiting clamping mode of the connecting head 342 entering the accommodating groove 352 can make the connection between the head end seat 35 and the head end cap 34 more stable. Moreover, one of the connecting head 342 or the accommodating groove 352 is arranged on the second end of the head end seat 35, and the other is arranged on the head end cap 34 corresponding to the second end of the head end seat 35. This clamping structure design at the second end can effectively reduce the radial size of the head end assembly without affecting the internal space layout of the head end assembly, and can also better offset the force acting on the head end cap 34 when the execution instrument (such as a forceps lifter) works.

[0132] In some embodiments, the connecting head 342 or the accommodating groove 352 is arranged on the elastic cap 343, and the preset deformation state is that the connecting head 342 or the accommodating groove 352 arranged on the elastic cap 343 deviates from the axial direction by a preset amplitude. The preset amplitude can be understood as a deformation amplitude that can make the connecting head 342 enter or move out of the accommodating groove 352.

[0133] In some embodiments, the connecting head 342 or the accommodating groove 352 can be switched from the natural state to the preset deformation state under the action of an external force. The direction of the external force is the first direction (i.e., the axial direction) or the second direction.

[0134] The external force refers to the force exerted by the operator on the connector 342 or the accommodation groove 352 provided on the elastic cap 343.

[0135] In some embodiments, the direction of the external force is a second direction. The second direction can be a direction deviating from the axial direction. In some embodiments, the second direction is orthogonal to the axial direction. For example, the second direction can be the Z direction shown in FIG. 19, or the X direction (i.e., the horizontal direction) shown in FIG. 19.

[0136] In some embodiments, the direction of the external force can be consistent with the direction in which the end surface of the connector 342 and the accommodation groove 352 are misaligned. For example, if the first end surface of the connector 342 and the accommodation groove 352 are misaligned in the second direction, the external force is exerted in the second direction (e.g., the Z direction shown in FIG. 19). For another example, if the second end surface of the connector 342 and the accommodation groove 352 are misaligned in the second direction, the external force is exerted in the second direction (e.g., the Z direction shown in FIG. 19). For another example, if the second end surface of the connector 342 and the accommodation groove 352 are misaligned in the horizontal direction (e.g., the X direction shown in FIG. 19), the external force is exerted in the horizontal direction (e.g., the X direction). The second direction can be represented by the Z direction shown in FIG. 19 (e.g., the Z direction).

[0137] It is worth noting that the material or support structure of the elastic cap 343 can be designed such that the connector 342 or the accommodation groove 352 provided on the elastic cap 343 can only deform in the aforementioned misalignment direction. For example, fixed support structures can be provided in non-misalignment directions to limit the deformation of the elastic cap 343 in these directions.

[0138] In some embodiments, the direction of the external force can also be the axial direction. By exerting an external force in the axial direction, the head end seat 35 and the head end cap 34 are pushed to move towards each other in the first direction, so that the connector 342 or the accommodation groove 352 deforms in the second direction (e.g., the Z direction shown in FIG. 19) to deviate from the axial direction, i.e., the connector 342 or the accommodation groove 352 can be switched from the natural state to the preset deformation state. The movement towards each other refers to the movement of two components towards each other.

[0139] In some embodiments, the preset deformation state is maintained, and the connector 342 can enter the accommodation groove 352 by moving the connector 342 and the accommodation groove 352 towards each other in the first direction. After the connector 342 enters the accommodation groove 352, the connector 342 or the accommodation groove 352 is switched from the preset deformation state to the natural state, and the connector 342 and the accommodation groove 352 are clamped with each other. At this time, the connector 342 cannot move out of the accommodation groove 352, and the head end seat 35 and the head end cap 34 are stably connected.

[0140] In brief, the connection or disconnection principle of the head end seat 35 and the head end cap 34 is that, under the action of an external force, the connecting head 342 or the accommodating groove 352 can be offset from the axial direction due to deformation, and the offset of the connecting head 342 or the accommodating groove 352 from the axial direction can eliminate the misalignment between the two, and then by moving the connecting head 342 and the accommodating groove 352 towards or away from each other in the first direction, the connecting head 342 can directly enter or move out of the accommodating groove 352, thereby achieving the installation or disassembly between the head end seat 35 and the head end cap 34. Moreover, after the connecting head 342 and the accommodating groove 352 are engaged with each other (i.e., installed in place), the connecting head 342 can be switched from the preset deformation state to the natural state, at which time the connecting head 342 cannot move out of the accommodating groove 352, and the head end seat 35 and the head end cap 34 are stably connected.

[0141] Specifically, as shown in FIG. 20, the connecting head 342 includes an extension part 3421 and a hook part 3422, and the hook part 3422 is arranged at the first end of the extension part 3421; the accommodating groove 352 includes an open groove 3521 and a tail groove 3522, and the open groove 3521 is arranged at the second end of the accommodating groove 352, and the tail groove 3522 is arranged at the first end of the accommodating groove 352. In the natural state, the first end face of the connecting head 342 (such as the hook part 3422) and the opening of the accommodating groove 352 (such as the open groove 3521) cannot be aligned in the Y direction shown in FIG. 19, i.e., the first end face of the hook part 3422 and the opening of the open groove 3521 are misaligned with each other in the Z direction shown in FIG. 19, as shown in detail in FIG. 20, the upper edge of the hook part 3422 is on the upper side of the upper edge 35211 of the open groove 3521, at which time the connecting head 342 (such as the hook part 3422) cannot directly enter the accommodating groove 352. As shown in FIGS. 21A-21B, at this time, the connecting head 342 is in a preset deformation state under the action of an external force, and the extension part 3421 thereof can be deformed and offset from the axial direction in the second direction (such as the Z direction shown in FIG. 19), so that the misalignment between the connecting head 342 (such as the hook part 3422) and the accommodating groove 352 (such as the open groove 3521) is eliminated, and the connecting head 342 and the accommodating groove 352 move towards or away from each other in the first direction, so that the connecting head 342 (such as the hook part 3422) can enter or move out of the accommodating groove 352 (such as the tail groove 3522), as shown in FIG. 22.

[0142] In some embodiments, as shown in FIGS. 20-22, one of the connecting head 342 or the accommodating groove 352 is provided with a first auxiliary entering face 3423, and the other is provided with a second auxiliary entering face 3523, and the first auxiliary entering face 3423 and the second auxiliary entering face 3523 are arranged towards each other and inclined relative to the axial direction, for providing guidance for the connecting head 342 or the accommodating groove 352.

[0143] The first auxiliary entering surface 3423 and the second auxiliary entering surface 3523 are inclined surfaces arranged on the connecting head 342 and the accommodating groove 352 respectively, and are used to guide the connecting head 342 to enter the accommodating groove 352. It can be understood that the first auxiliary entering surface 3423 and the second auxiliary entering surface 3523 are only defined for distinguishing the different arrangement positions, and the essence is not different. In some embodiments, the first auxiliary entering surface 3423 and the second auxiliary entering surface 3523 are arranged correspondingly, that is, when the first auxiliary entering surface 3423 is arranged on the connecting head 342, the second auxiliary entering surface 3523 is arranged on the accommodating groove 352 correspondingly; when the first auxiliary entering surface 3423 is arranged on the accommodating groove 352, the second auxiliary entering surface 3523 is arranged on the connecting head 342 correspondingly.

[0144] Towards each other means that two components or surfaces are opposite and face each other in space. Opposite axial inclination arrangement means that two components or surfaces have a certain inclination angle in the direction of the relative axis. As shown in FIGS. 20-22, the first auxiliary entering surface 3423 can be arranged on the connecting head 342, the second auxiliary entering surface 3523 is arranged on the accommodating groove 3526 towards the first auxiliary entering surface 3423, and the first auxiliary entering surface 3423 and the second auxiliary entering surface 3523 are both inclined at a preset angle (less than 90°) counterclockwise relative to the axis. The preset angle is in the range of 25°-60°. Preferably, the preset angle is 45°.

[0145] In some embodiments of the present specification, the first auxiliary entering surface and the second auxiliary entering surface are arranged on the connecting head and the accommodating groove respectively, so as to guide the connecting head to enter the accommodating groove.

[0146] In some embodiments, when the connecting seat 351 is inserted into the sleeve 341 along the first direction, and the connecting head 342 or the accommodating groove 352 is in a natural state, the first auxiliary entering surface 3423 and the second auxiliary entering surface 3523 are partially misaligned with each other in the second direction, and the first auxiliary entering surface 3423 is arranged deviated from the axis relative to the second auxiliary entering surface 3523.

[0147] As shown in FIGS. 20-22, the first auxiliary entering surface 3423 is arranged on the first end surface of the connecting head 342, and the second auxiliary entering surface 3523 is arranged on the opening upper end surface of the accommodating groove 352. At this time, the first auxiliary entering surface 3423 and the second auxiliary entering surface 3523 cannot be aligned in the Y direction shown in FIG. 19, that is, the first auxiliary entering surface 3423 and the second auxiliary entering surface 3523 are misaligned in the Z direction (i.e. the second direction) shown in FIG. 19, which means that the first auxiliary entering surface 3423 is arranged deviated from the axis relative to the second auxiliary entering surface 3523.

[0148] It should be understood that, since the first auxiliary entry surface 3423 and the second auxiliary entry surface 3523 are arranged for the purpose of providing guidance for the connecting head 342 or the accommodating groove 352, the first auxiliary entry surface 3423 and the second auxiliary entry surface 3523 cannot be completely misaligned in the second direction to avoid the first auxiliary entry surface 3423 and the second auxiliary entry surface 3523 failing to play a guiding role in the process of mounting the head end seat 35 and the head end cap 34.

[0149] In some embodiments, the switching of the connecting head 342 or the accommodating groove 352 between the natural state and the preset deformation state includes: in the natural state, by the first auxiliary entry surface 3423 and the second auxiliary entry surface 3523 being in abutment, the connecting head 342 and the accommodating groove 352 move towards each other in the first direction, the guiding cooperation of the first auxiliary entry surface 3423 and the second auxiliary entry surface 3523 causes the connecting head 342 or the accommodating groove 352 to deviate from the axial direction until the connecting head 342 or the accommodating groove 352 is in the preset deformation state; in the preset deformation state, when the connecting head 342 and the accommodating groove 352 move towards each other in the first direction to a position, the connecting head 342 or the accommodating groove 352 can return to the natural state.

[0150] As shown in FIGS. 20-22, the first auxiliary entry surface 3423 is arranged on the first end surface of the connecting head 342, and the second auxiliary entry surface 3523 is arranged on the open upper end surface of the accommodating groove 352. When the connecting seat 351 is inserted into the sleeve 341 in the first direction, and the connecting head 342 or the accommodating groove 352 is in the natural state, the operator applies an external force in the first direction to the head end seat 35 and / or the head end cap 34 (such as applying an external force in the Y-direction to the head end cap 34), the first auxiliary entry surface 3423 can at least partially abut the second auxiliary entry surface 3523, and the connecting head 342 and the accommodating groove 352 move towards each other in the first direction. At this time, the first auxiliary entry surface 3423 and the second auxiliary entry surface 3523 can slide towards each other to achieve guiding cooperation, so that the connecting head 342 is deformed in the second direction and deviates from the axial direction until the connecting head 342 is in the preset deformation state. In the preset deformation state, when the connecting head 342 and the accommodating groove 352 move towards each other in the first direction to a position, the connecting head 342 can enter the accommodating groove 352 and be engaged with the accommodating groove 352, at this time, the connecting head 342 can return to the natural state. Wherein, moving towards each other to a position can be understood as the connecting head 342 and the accommodating groove 352 abutting, and unable to move towards each other again.

[0151] Some embodiments of the present specification only need to push the head end seat and the head end cap to move in the first direction by applying external force in the axial direction, and through the guide cooperation of the first auxiliary entering surface and the second auxiliary entering surface, the connecting head or the accommodating groove deviates from the axial direction to eliminate the misalignment, and then the connecting head or the accommodating groove is in the preset shape state, when the connecting head and the accommodating groove move in the first direction to the position, the connecting head or the accommodating groove can automatically restore to the natural state, so as to realize the mutual clamping of the connecting head and the accommodating groove, that is, to realize the stable connection of the head end seat and the head end cap. This design is simple in structure and convenient to operate, which is beneficial to realize fast installation while realizing stable connection.

[0152] As shown in FIG. 23, the second end of the head end seat 35 is provided with a force applying groove 353 extending in the second direction and communicating with the opening groove 3521. When the hook portion 3422 and the tail groove 3522 are mutually clamped, the connecting head 342 is switched from the natural state to the preset deformation state by applying external force to the connecting head 342 through the force applying groove 353 in the second direction, and the hook portion 3422 can be separated from the tail groove 3522, and the connecting head 342 moves out of the accommodating groove 352.

[0153] The force applying groove 353 is a groove hole provided at the second end of the head end seat 35 for facilitating the application of external force to the connecting head 342. In this embodiment, the force applying groove 353 can extend in the Z-direction shown in FIG. 19 until it communicates with the opening groove 3521. When the hook portion 3422 and the tail groove 3522 are mutually clamped, the operator applies external force to the connecting head 342 through the force applying groove 353 in the Z-direction shown in FIG. 19, and the connecting head 342 can be deformed in the Z-direction shown in FIG. 19, switched from the natural state to the preset deformation state, at this time the hook portion 3422 can be separated from the tail groove 3522, and the connecting head 342 moves out of the accommodating groove 352. It should be noted that the structure shape, size and setting position of the force applying groove 353 can be determined according to the actual application requirement, and the external force applied to the connecting head 112 through the force applying groove 353 in the second direction can be realized.

[0154] In this embodiment, the disengagement process of the connecting head 342 and the accommodating groove 352 is as follows:

[0155] As shown in FIGS. 23-24, when the hook portion 3422 and the tail groove 3522 are engaged with each other, the operator applies an external force to the connecting head 342 through the force applying groove 353 in the second direction (e.g., the Z-direction), and the connecting head 342 is deformed in the second direction (e.g., the Z-direction) to switch from the natural state to the preset shape state, at which time the hook portion 3422 can be separated from the tail groove 3522. The operator applies a force in the first direction to the head end seat 35 and / or the head end cap 34 (e.g., applies an external force in the Y+ direction to the head end cap 34), so that the connecting head 342 moves away from the accommodating groove 352 in the first direction, and the connecting head 342 can be removed from the accommodating groove 352. The movement away from each other refers to the movement in which the distance between two components gradually increases.

[0156] According to some embodiments of the present specification, the connecting head can be removed from the accommodating groove by providing the force applying groove at the second end of the head end seat and applying an external force to the connecting head in the first direction through the force applying groove to switch the connecting head from the natural state to the preset deformation state. This design can achieve quick assembly and disassembly while ensuring stable connection.

[0157] Some embodiments of the present specification also provide a control method of an endoscope. The endoscope includes an operation part, an operation member arranged in the operation part and rotating around an operation shaft, an insertion part including a control member and an adjusting member, a second end of the control member being in transmission connection with the adjusting member, and a connecting part, the connecting part being detachably connected with a first end of the control member, and the operation member being in transmission connection with the connecting part. The endoscope includes a connected state, and when the endoscope is in the connected state, the connecting part is kept connected with the first end of the control member, and the operation member, the control member and the adjusting member constitute a transmission path through the connecting part. The control method includes: when the endoscope is in the connected state, controlling the operation member to rotate around the operation shaft in a first rotation range, and driving the adjusting member to move through the transmission path to adjust the state of the adjusting member. More details about the foregoing embodiments can be found in the foregoing description of the present specification.

[0158] In some embodiments, the endoscope further includes a disassembled state, and when the endoscope is in the disassembled state, the connecting part is disconnected with the first end of the control member. The control method of the endoscope further includes: when the endoscope is in the connected state, controlling the operation member to rotate around the operation shaft in a second rotation range, and driving the connecting part and the first end of the control member to be disconnected through the transmission path to switch the endoscope from the connected state to the disassembled state. More details about the foregoing embodiments can be found in the foregoing description of the present specification.

[0159] Some embodiments of the present specification also provide a disassembly method of an endoscope, the endoscope comprising an operation part; an insertion part, the insertion part comprising a control member and an adjusting member, a second end of the control member being in transmission connection with the adjusting member, the control member being configured to adjust a state of a target instrument by controlling movement of the adjusting member; and a connecting part, a first end of the control member being detachably connected with the connecting part, the operation part being in transmission connection with the connecting part; wherein the endoscope comprises a connected state and a disassembly state, when the endoscope is in the connected state, the first end of the control member remains connected with the connecting part, the method comprising: when the endoscope is in the connected state, controlling the operation part to cause the connecting part and / or the first end of the control member to deform or partially fall off, the endoscope being switched from the connected state to the disassembly state, the connecting part being disconnected with the first end of the control member. For more information about the foregoing embodiments, please refer to the foregoing relevant description of the present specification.

[0160] In some embodiments, the disassembly end of the connecting barrel comprises at least one limiting barrel petal distributed along the circumference of the connecting barrel, the limiting cavity is at least formed by the inner wall of the at least one limiting barrel petal, and the disassembly end of the at least one limiting barrel petal can expand along the radial direction of the connecting barrel, wherein the disassembly end is one of the first end and the second end, the disassembly end is the second end, the connecting part comprises the connecting barrel, the control member comprises the limiting head and the operation wire, the first end of the connecting barrel is connected with the second end of the operation part, the limiting cavity is arranged at the second end of the connecting barrel, the second end of the limiting head is connected with the first end of the operation wire, the disassembly method of the endoscope further comprises: when the endoscope is in the connected state, controlling the operation part to drive the connecting barrel to move towards the second end, so that the first end face of the limiting cavity abuts against the first end face of the limiting head, thereby driving the control member to move towards the second end; and / or controlling the operation part to drive the connecting barrel to move towards the first end, so that the second end face of the limiting cavity abuts against the second end face of the limiting head, thereby driving the control member to move towards the first end. For more information about the foregoing embodiments, please refer to the foregoing relevant description of the present specification.

[0161] In some embodiments, the operation part comprises an operation member and a driving rod, a first end of the driving rod being in transmission connection with the operation member, and a second end of the driving rod being connected with the connecting part, the operation member being configured to control the driving rod to move in the first direction, the disassembly method of the endoscope further comprises: when the endoscope is in the connected state, controlling the operation member to drive the connecting part to move along the axial direction through the driving rod, thereby driving the control member connected with the connecting part to move along the axial direction, and further driving the adjusting member connected with the control member to move, so as to form a transmission path between the operation member and the adjusting member, when the endoscope is in the disassembly state, the first end of the control member is disconnected with the connecting part, and the transmission path is disconnected.

[0162] In some embodiments, the method further comprises: when the endoscope is in the connected state, controlling the operation member to drive the connecting part to the disassembling position, and the disassembling part deforms or partially detaches the first end of the control member and / or the connecting part, the connection between the connecting part and the control member is released, and the control member is disconnected from the connecting member.

[0163] In some embodiments, when the first end of the control part comprises a limiting head and the connecting part comprises a connecting cylinder, the method further comprises: when the endoscope is in the disassembled state and the control member is disconnected from the connecting part, controlling the operation member to keep the connecting part in the disassembling position; controlling the control member to move towards the connecting part until the first end of the control member enters the connecting part and / or the connecting part enters the first end of the control member; and controlling the connecting part and the control member to move towards the first end by a preset distance at the same time, so that the first end of the connecting part and / or the control member restores the deformation, the control member is connected with the connecting part, and the endoscope is switched from the disassembled state to the connected state.

[0164] In some embodiments, when the connecting part is in the disassembling position, the connecting part (for example, the connecting cylinder in the connecting part) is in an open state. At this time, the operator can control the control member to move towards the connecting part until the first end of the control member enters the connecting part and / or the connecting part enters the first end of the control member. Then, the operator can control the operation member to drive the connecting part to move towards the first end by a preset distance, and at the same time, control the control member to also move towards the first end by a preset distance, so that the first end of the connecting part and / or the control member restores the deformation, the connecting part is in a closed state, the first end of the control member is limited in the connecting part, the control member is connected with the connecting part, and the endoscope is switched from the disassembled state to the connected state.

[0165] In some embodiments of the present specification, the first end of the control member is detachably connected with the connecting part. To release the connection between the two, only the operation member is needed to control the connecting member to move, and the disassembling part is used to deform or partially detach the first end of the connecting part and / or the control member, without the need to disassemble the complicated steps of the clamping device of the first end of the control member, and the operation is simple and convenient.

[0166] The above has described the basic concept. It is obvious that the above detailed disclosure is only used as an example and does not limit the present specification. Although it is not explicitly stated herein, those skilled in the art can make various modifications, improvements and corrections to the present specification. Such modifications, improvements and corrections are suggested in the present specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present specification.

Claims

1. An endoscope, characterized by, The endoscope comprises: an operation part; an insertion part comprising a control member and an adjusting member, a second end of the control member being in transmission connection with the adjusting member, the control member being configured to adjust a state of a target instrument by controlling the adjusting member to move; and a connection part, a first end of the control member being detachably connected with the connection part, the operation part being in transmission connection with the connection part; wherein the endoscope comprises a connected state and a detached state, when the endoscope is in the connected state, the first end of the control member is kept connected with the connection part, when the endoscope is in the detached state, the connection part is disconnected with the first end of the control member, when the endoscope is switched from the connected state to the detached state, the connection part and / or the first end of the control member is deformed or partially detached. At least one of the connection part and the first end of the control member comprises a connection barrel, the connection barrel is at least partially radially expandable, the connection barrel comprises a limiting cavity therein, at least one of the connection part and the first end of the control member comprises a limiting head, the limiting head is detachably placed in the limiting cavity to realize detachable connection of the connection part and the first end of the control member.

2. The endoscope of claim 1, wherein, The detachment end of the connection barrel comprises at least one limiting barrel petal distributed along the circumference of the connection barrel, the limiting cavity is at least composed of the inner wall of the at least one limiting barrel petal, the detachment end of the at least one limiting barrel petal is radially expandable along the connection barrel, wherein the detachment end is one of the first end and the second end.

3. The endoscope of claim 2, wherein, The endoscope further comprises at least one non-limiting barrel petal distributed along the circumference of the connection barrel, the limiting cavity is composed of the inner wall of the at least one non-limiting barrel petal and the inner wall of the at least one limiting barrel petal.

4. The endoscope of claim 3, wherein, The detachment end is the second end, the connection part comprises the connection barrel, the first end of the control member is provided with the limiting head, the first end of the connection barrel is connected with the second end of the operation part, and the limiting cavity is arranged at the second end of the connection barrel; wherein, when the endoscope is in the connected state, 5. The endoscope of claim 3, wherein, when the operation part drives the connection barrel to move towards the second end, the first end face of the limiting cavity abuts against the first end face of the limiting head to drive the control member to move towards the second end through the limiting head; and / or when the operation part drives the connection barrel to move towards the first end, the second end face of the limiting cavity abuts against the second end face of the limiting head to drive the control member to move towards the first end through the limiting head. The detachment end is the first end, the control member comprises the connection barrel and an operation wire, the connection part comprises the limiting head, the first end of the limiting head is connected with the second end of the operation part, the limiting cavity is arranged at the first end of the connection barrel, and the second end of the connection barrel is connected with the first end of the operation wire.

6. The endoscope of claim 3, wherein, The at least one limiting barrel petal further constitutes a limiting channel, the limiting channel is in communication with the limiting cavity, 7. The endoscope according to any one of claims 3 to 6, characterized in that, when the endoscope is in the connected state, the radial dimension of the limiting channel is smaller than the maximum radial dimension of the limiting head; ​ The at least one limiting cylinder petal includes a limiting boss which protrudes inward along the radial direction of the connecting cylinder, and an end face of the limiting boss located at the connecting section constitutes an end face of the limiting cavity located at the disassembly end.

8. The endoscope of claim 7, wherein, The at least one limiting cylinder petal includes a limiting boss which protrudes inward along the radial direction of the connecting cylinder, and an end face of the limiting boss located at the connecting section constitutes an end face of the limiting cavity located at the disassembly end.

9. The endoscope of claim 2, wherein, The endoscope further comprises a disassembly sleeve, and the disassembly sleeve is internally provided with an axially extending disassembly channel. When the endoscope is in the connecting state, the operation part can drive the connecting cylinder to move in the disassembly channel towards the disassembly end to a disassembly position, When the operation part continues to drive the connecting cylinder to move towards the disassembly end, the disassembly end of the at least one limiting cylinder petal expands along the radial direction of the connecting cylinder, and the endoscope is switched from the connecting state to the disassembly state.

10. The endoscope of claim 9, wherein, The disassembly position is provided with a disassembly end head, the connecting end of the disassembly end head comprises a disassembly protrusion, the radial dimension of the disassembly protrusion gradually increases along the axial direction from the connecting end to the disassembly end, when the endoscope is switched from the connecting state to the disassembly state, the disassembly protrusion abuts against the disassembly groove and drives the disassembly end of the at least one limiting cylinder petal to expand along the radial direction of the connecting cylinder, The disassembly end of the at least one limiting cylinder petal comprises an auxiliary disassembly platform, and a disassembly groove is formed by the inner wall of the auxiliary disassembly platform in the at least one limiting cylinder petal, the disassembly groove communicates with the limiting channel, and the radial dimension of the disassembly groove gradually decreases along the axial direction from the disassembly end to the connecting end; When the endoscope is in the connecting state, the operation part can drive the disassembly groove to move in the disassembly channel towards the disassembly end to abut against the disassembly end head, When the connecting cylinder continues to move in the disassembly channel towards the disassembly end, the disassembly end head drives the disassembly end of the at least one limiting cylinder petal to expand along the radial direction of the connecting cylinder, and the endoscope is switched from the connecting state to the disassembly state; When the endoscope is in the disassembly state, the limiting head can exit the limiting cavity.

11. The endoscope of claim 1, wherein, The insertion part further comprises a protection tube, a head end cap and a head end seat, a first end of the protection tube is connected with the operation part, the control member is arranged in the protection tube, the head end seat is connected with a second end of the protection tube, the head end seat is detachably connected with the head end cap, the adjusting member comprises a lifting member, the lifting member is rotationally connected with the head end cap, the lifting member is further connected with a second end of the control member, The head end seat comprises a connecting seat arranged at a first end, the head end cap comprises a sleeve and an elastic cap arranged at a second end of the sleeve, the sleeve is pluggable with the connecting seat, The head end seat and the head end cap are arranged with a receiving groove and a connecting head respectively, at least one of the connecting head or the receiving groove comprises a natural state and a preset deformation state which can be restored to the natural state, In the natural state, the end face of the connecting head is misaligned with the receiving groove, In the preset deformation state, the connecting head can enter or move out of the receiving groove.

12. The endoscope of claim 1, wherein, The operation part comprises an operation member and a driving rod, a first end of the driving rod is drivingly connected with the operation member, a second end of the driving rod is connected with the connecting part, the operation member is configured to control the driving rod to move along the axial direction, the operation member is rotationally arranged in the operation part, when the endoscope is in the connected state, When the operation member is located in the first rotation range, the operation member drives the adjusting member to move through the transmission channel to adjust the state of the target instrument; When the operation member is located in the second rotation range, the first end of the connecting part and / or the control member is deformed or partially detached, the first end of the control member is disconnected with the connecting part, the transmission channel is disconnected, and the endoscope is switched from the connected state to the detached state.

13. A method of disassembling an endoscope, characterized by: The endoscope comprises an operation part, an insertion part, a connecting part, the insertion part comprises a control member and an adjusting member, a second end of the control member is drivingly connected with the adjusting member, the control member is configured to adjust the state of the target instrument by controlling the adjusting member to move, the first end of the control member is detachably connected with the connecting part, and the operation part is drivingly connected with the connecting part; The endoscope comprises a connected state and a detached state, when the endoscope is in the connected state, the first end of the control member is connected with the connecting part, and the method comprises: When the endoscope is in the connected state, the operation part is controlled to drive the first end of the connecting part and / or the control member to be deformed or partially detached, the endoscope is switched from the connected state to the detached state, and the first end of the connecting part is disconnected with the control member.

14. The method of claim 13, wherein, The dismounting end of the connecting cylinder comprises at least one limiting cylinder lobe distributed along the circumference of the connecting cylinder, the limiting cavity is at least composed of the inner wall of the at least one limiting cylinder lobe, the dismounting end of the at least one limiting cylinder lobe expands along the radial direction of the connecting cylinder, wherein the dismounting end is one of the first end and the second end, the dismounting end is the second end, the connecting part comprises the connecting cylinder, the control part comprises the limiting head and the operating wire, the first end of the connecting cylinder is connected with the second end of the operating part, the limiting cavity is arranged at the second end of the connecting cylinder, the second end of the limiting head is connected with the first end of the operating wire, The method further comprises: When the endoscope is in the connecting state, controlling the operating part to drive the connecting cylinder to move towards the second end, so that the first end face of the limiting cavity abuts against the first end face of the limiting head, thereby driving the control part to move towards the second end; and / or controlling the operating part to drive the connecting cylinder to move towards the first end, so that the second end face of the limiting cavity abuts against the second end face of the limiting head, thereby driving the control part to move towards the first end.

15. The method of claim 13, wherein, The operating part comprises an operating member and a driving rod, the first end of the driving rod is in transmission connection with the operating member, and the second end of the driving rod is connected with the connecting part, the operating member is configured to control the driving rod to move along the axial direction, and the method further comprises: When the endoscope is in the connecting state, the operating member drives the connecting part to move along the axial direction through the driving rod, thereby driving the control part connected with the connecting part to move along the axial direction, and further driving the adjusting member connected with the control part to move, so as to form a transmission path between the operating member and the adjusting member, and when the endoscope is in the dismounting state, the first end of the control part is disconnected with the connecting part, and the transmission path is disconnected.

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