Surgical device mounting mechanism and surgical device

Abstract

The invention provides a surgical device attachment mechanism and a surgical device capable of avoiding undesired detachment of surgical device components. The surgical device mounting mechanism sequentially comprises a base, a sterile clamping seat and a surgical device assembly in the central axis direction of the surgical device mounting mechanism, and the surgical device mounting mechanism further comprises a first connecting mechanism and a second connecting mechanism, and the sterile clamping seat is detachably connected to the base through the first connecting mechanism; the two second connecting mechanisms are arranged in the circumferential direction around the central axis in a spaced mode, and the surgical device assembly is detachably connected to the sterile clamping base through the second connecting mechanisms; and the locking mechanism is used for detachably connecting the surgical device assembly to the sterile clamping seat.

Description

Technical Field

[0001] The invention relates to a surgical device installation mechanism and a surgical device. Background Art

[0002] In surgical robotic systems, the use of sterile barriers is very important to prevent infection and ensure surgical safety. For example, the end tools of the robotic arm are in direct contact with patient tissue and must be completely sterile. Sterile barriers are used to ensure that these tools will not be contaminated during use. For another example, cameras and light sources used for surgical navigation, such as endoscope lenses, camera heads, optical fibers, etc., must use sterile barriers if they directly contact the patient's internal organs or sterile areas.

[0003] In some scenarios, a sterile barrier needs to be provided between the driving mechanism of the endoscope device and the endoscope assembly to ensure that the endoscope assembly will not be contaminated. The endoscope assembly may, for example, be detachably connected to the driving mechanism. In existing endoscope devices with detachable endoscope assemblies, since no locking mechanism is provided, unexpected disassembly may occur due to the endoscope assembly being subjected to unexpected force, etc. In addition, in an endoscope device having multiple detachable structures for an endoscope assembly, a sterile holder, and a base, a situation may occur in which another connecting mechanism is mistakenly disassembled due to accidental touching, etc. when disassembling one connecting mechanism. Summary of the invention

[0004] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a surgical device mounting mechanism and a surgical device capable of preventing undesired disassembly of a surgical device assembly.

[0005] In order to achieve the above-mentioned purpose, the first aspect of the present invention provides a surgical device installation mechanism, which includes a base, a sterile cartridge and a surgical device assembly in sequence along the direction of its central axis, and the surgical device installation mechanism also includes: a first connecting mechanism, which removably connects the sterile cartridge to the base; two second connecting mechanisms arranged at intervals in the circumferential direction around the central axis, and the second connecting mechanisms removably connect the surgical device assembly to the sterile cartridge; and a locking mechanism, which removably connects the surgical device assembly to the sterile cartridge.

[0006] According to the surgical device installation mechanism of the present invention, the surgical device installation mechanism includes: two second connection mechanisms that are arranged at intervals in the circumferential direction around the central axis and detachably connect the surgical device assembly to the sterile card holder; and a locking mechanism that detachably connects the surgical device assembly to the sterile card holder. In this way, when disassembling the surgical device assembly and the sterile card holder, in addition to the second connection mechanism, the locking mechanism also needs to be unlocked (requires two-hand operation), which can avoid the undesired disassembly of the surgical device assembly.

[0007] In addition, in the surgical device installation mechanism of the present invention, the first connection mechanism may have a first button for removing the sterile cartridge from the base from the installed state by pressing, the surgical device assembly may have a first cylindrical peripheral wall portion, and in the installed state of the base, the sterile cartridge, and the surgical device assembly, the first button is covered by the first peripheral wall portion. In this way, after the surgical device assembly is installed, the removal button of the sterile cartridge, i.e., the first button, can be covered, and the sterile cartridge can be prevented from being removed by mistake.

[0008] In addition, in the surgical device installation mechanism of the present invention, the first button may be located within a range surrounded by an outer contour of the sterile cartridge when viewed along the central axis. Thus, when assembling the surgical device installation mechanism, the operator is unlikely to touch the first button, and assembly can be performed easily and reliably.

[0009] In addition, in the surgical device installation mechanism of the present invention, the first connection mechanism may include: a first hooking portion provided on one of the base and the sterile cartridge; and a first hooked portion provided on the other of the base and the sterile cartridge and hooked by the first hooking portion, and the first hooking portion and the first hooked portion are released by pressing the first button. Thus, the sterile cartridge and the base are directly aligned and can be assembled quickly.

[0010] In addition, in the surgical device installation mechanism of the present invention, the second connection mechanism may have a second button, the second button is provided on one of the surgical device assembly and the sterile holder, the locking mechanism may have a third button, the third button is provided on the other of the surgical device assembly and the sterile holder, and the sterile holder and the surgical device assembly may be disassembled from the installed state by pressing the second button and the third button. Thus, the sterile holder and the surgical device assembly may be disassembled by pressing, and during disassembly, two hands may press buttons on different components respectively to prevent misoperation.

[0011] In addition, in the surgical device installation mechanism of the present invention, the second button and the third button may be staggered in the central axis direction and / or in the circumferential direction, thereby facilitating the disassembly of the sterile cartridge and the surgical device assembly and facilitating rapid disassembly.

[0012] In addition, in the surgical device installation mechanism of the present invention, the second button may be arranged on the surgical device assembly, the third button may be arranged on the sterile cartridge, the surgical device assembly may have a cylindrical first peripheral wall portion, the first peripheral wall portion may have a notch, and in the installed state of the base, the sterile cartridge, and the surgical device assembly, the first peripheral wall portion surrounds the sterile cartridge from the outer peripheral side, and the notch exposes the third button. Thus, the third button can be exposed without increasing the size of the surgical device installation mechanism in the direction of the central axis, making the structure of the surgical device installation mechanism compact.

[0013] Furthermore, in the surgical device installation mechanism of the present invention, the second button may be located within a range surrounded by the outer contour of the surgical device assembly when viewed along the central axis. Thus, when assembling the surgical device installation mechanism, the operator is unlikely to touch the second button, and installation can be performed easily and reliably.

[0014] In addition, in the surgical device installation mechanism of the present invention, the second connection mechanism may include: a second hooking portion provided on one of the surgical device assembly and the sterile cartridge; a second hooked portion provided on the other of the surgical device assembly and the sterile cartridge and for the second hooked portion to hook; and a second button, by pressing the second button to release the hooking of the second hooking portion and the second hooked portion, and the locking mechanism may include: a third hooking portion provided on the other of the surgical device assembly and the sterile cartridge; a third hooked portion provided on one of the surgical device assembly and the sterile cartridge and for the third hooked portion to hook; and a third button, by pressing the third button to release the hooking of the third hooking portion and the third hooked portion. Thus, the surgical device assembly and the sterile cartridge are directly aligned and can be assembled quickly.

[0015] Furthermore, in the surgical device mounting mechanism of the present invention, two first connecting mechanisms may be arranged at intervals in the circumferential direction, thereby enabling the sterile cartridge and the base to be stably connected.

[0016] Furthermore, in the surgical device mounting mechanism of the present invention, the two first connection mechanisms may be arranged 180 degrees apart in the circumferential direction, thereby making it possible to conveniently operate the first connection mechanisms.

[0017] Furthermore, in the surgical device mounting mechanism of the present invention, the two second connection mechanisms may be arranged 180 degrees apart in the circumferential direction, thereby making it possible to conveniently operate the second connection mechanisms.

[0018] For example, the surgical device mounting mechanism is an endoscope mounting mechanism, and the surgical device component is an endoscope component.

[0019] In addition, a second aspect of the present invention provides a surgical device, comprising any one of the above-mentioned surgical device mounting mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a perspective view of the endoscope device according to Embodiment 1 of the present invention.

[0021] Figure 2 It is an exploded perspective view of the endoscope device according to Embodiment 1 of the present invention.

[0022] Figure 3 It is a cross-sectional view of the endoscope mounting mechanism according to Embodiment 1 of the present invention.

[0023] Figure 4 This is a perspective view of the inner housing of the sterile cartridge of the endoscope mounting mechanism according to the first embodiment as viewed from the proximal end side.

[0024] Figure 5 This is a perspective view of a support base of an endoscope assembly of the endoscope mounting mechanism according to the first embodiment, as viewed from the proximal end side.

[0025] Figure 6 This is an enlarged perspective view of the first button of the endoscope mounting mechanism according to the first embodiment.

[0026] Figure 7 This is an enlarged perspective view of the second button of the endoscope mounting mechanism according to the first embodiment.

[0027] Figure 8 This is a cross-sectional perspective view of the vicinity of the second connection mechanism of the endoscope mounting mechanism according to the first embodiment.

[0028] Fig. 9 It is from Figure 3 Cross-sectional views of the endoscope mounting mechanism according to Embodiment 1 as viewed from different angles.

[0029] Fig.10 This is a cross-sectional perspective view of the locking mechanism and its vicinity of the endoscope mounting mechanism according to the first embodiment.

[0030] Fig.11 It is a perspective view schematically showing an endoscope mounting mechanism according to the second embodiment.

[0031] Fig.12 This is a cross-sectional view of the endoscope mounting mechanism according to the second embodiment.

[0032] Fig.13 This is an exploded perspective view of the endoscope mounting mechanism of the second embodiment.

[0033] Fig.14 This is a perspective view of the inner housing of the sterile cartridge of the endoscope mounting mechanism according to the second embodiment as viewed from the proximal end side.

[0034] Fig.15 This is a perspective view of a proximal side housing of an endoscope assembly of an endoscope mounting mechanism according to Embodiment 2 as viewed from the proximal side.

[0035] Fig.16 This is an enlarged perspective view of the first button of the endoscope mounting mechanism according to the second embodiment.

[0036] Fig.17 It is from Fig.12 Cross-sectional views of the endoscope mounting mechanism according to Embodiment 1 as viewed from different angles.

[0037] (Explanation of symbols)

[0038] 10, 10' base; 20, 20' sterile card seat; 30, 30' endoscope assembly (surgical device assembly); 100 endoscope device (surgical device); 102, 102' endoscope mounting mechanism (surgical device mounting mechanism); 312, 312' first peripheral wall portion; 3121, 3121' notch; C1, C1' first connecting mechanism; C11, C11' first hooking portion; C12, C12' first button; C13, C124 first hooked portion; C2, C2' second connecting mechanism; C21, C21' second hooking portion; C22, C22' second button; C23, C224 second hooked portion; L, L' center axis; S, S' locking mechanism; S1, S1' third hooking portion; S2, S2' third button; S3, S24 third hooked portion DETAILED DESCRIPTION

[0039] Hereinafter, the technical scheme of the embodiment and the modified example of the present invention will be described with reference to the accompanying drawings. In addition, the scope of the present invention is not limited to the following embodiment and the modified example, and can be arbitrarily changed within the scope of the technical idea of ​​the present invention. In addition, in the following drawings, in order to facilitate the understanding of each structure, the actual structure is sometimes different from the scale, quantity, etc. in each structure.

[0040] In the following description, the direction parallel to the central axis L, L' is sometimes referred to as the "central axis direction", the circumferential direction around the central axis L, L' is referred to as the "circumferential direction", and the radial direction centered on the central axis L, L' is referred to as the "radial direction".

[0041] The present invention can be applied to surgical equipment, especially in the field of surgical robots, for detachable and replaceable devices and components with sterile barriers. The following embodiments are described by taking the application of the present invention in an endoscopic device as an example. It should be understood that the present invention can also be applied to other detachable and replaceable devices and components with sterile barriers, such as surgical instruments.

[0042] <Implementation method 1>

[0043] (Overall structure of endoscope device)

[0044] Figure 1 This is a perspective view of an endoscope apparatus (equivalent to the "surgical apparatus" of the present invention) 100 according to Embodiment 1 of the present invention, and some structures are omitted to simplify the drawing. Figure 2 It is an exploded perspective view of the endoscope device 100 according to the first embodiment of the present invention.

[0045] The endoscope device 100 of embodiment 1 of the present disclosure is a bronchoscope. In addition, the endoscope device 100 of the present embodiment can be used as a disposable endoscope or as a reusable endoscope. The endoscope device 100 includes a main body 101 and an endoscope mounting mechanism (equivalent to the "surgical device mounting mechanism" of the present invention) 102. The endoscope mounting mechanism 102 is arranged at the distal end of the endoscope device 100 (the distal side of the main body 101). Here, the "distal side" in the endoscope device 100 refers to the side away from the driving device when in use, and the "proximal side" refers to the side close to the driving device when in use.

[0046] (Endoscope mounting mechanism)

[0047] The structure of the endoscope mounting mechanism is further described below with reference to the accompanying drawings.

[0048] Figure 3 It is a cross-sectional view of the endoscope mounting mechanism 102 according to Embodiment 1 of the present invention. Figure 4 This is a perspective view of the inner housing 21 of the sterile cartridge 20 of the endoscope mounting mechanism 102 as viewed from the proximal end side. Figure 5 This is a perspective view of a support base 30B of an endoscope assembly (corresponding to the "surgical device assembly" of the present invention) 30 of the endoscope mounting mechanism 102 as viewed from the proximal end side. Figure 6 It is an enlarged stereoscopic view of the first button C12 of the endoscope mounting mechanism 102 . Figure 7 It is an enlarged stereoscopic view of the second button C22 of the endoscope mounting mechanism 102 . Figure 8 This is a cross-sectional perspective view of the vicinity of the second connection mechanism C2 of the endoscope mounting mechanism 102 according to the first embodiment. Fig. 9 It is from Figure 3 Cross-sectional views of the endoscope mounting mechanism 102 according to Embodiment 1 as viewed from different angles. Fig.10 This is a cross-sectional perspective view of the vicinity of the locking mechanism S of the endoscope mounting mechanism 102 according to the first embodiment.

[0049] The endoscope mounting mechanism 102 of the embodiment 1 of the present disclosure includes a base 10, a sterile cartridge 20 and an endoscope assembly 30 in sequence along the direction of its central axis L. The base 10, the sterile cartridge 20 and the endoscope assembly 30 are arranged in sequence from the proximal side to the distal side in the endoscope device 100. In addition, the endoscope mounting mechanism 102 also includes: a first connecting mechanism C1, which detachably connects the sterile cartridge 20 to the base 10; a second connecting mechanism C2, which detachably connects the endoscope assembly 30 to the sterile cartridge 20; and a locking mechanism S, which detachably connects the endoscope assembly 30 to the sterile cartridge 20.

[0050] The base 10 is disposed on the proximal side of the endoscope mounting mechanism 102. The base 10 is fixedly connected to the distal end of the main body 101. On the distal side in the direction of the central axis L, the base 10 has a first distal surface 11. In addition, the base 10 has a through hole H that passes through the first distal surface 11 in the direction of the central axis L. The through hole H allows the first hooking portion C11 described below to enter and exit. A portion of the wall surface around the through hole H constitutes the first hooked portion C13 described below. In addition, the base 10 has a cylindrical first side wall 12 that extends from the outer periphery of the first distal surface 11 to the proximal side in the direction of the central axis L.

[0051] The sterile holder 20 is located at the distal end of the base 10. Usually, the base 10 and the main body 101 connected thereto are not replaced; the endoscope assembly 30 can be disposable or sterilized and reused before each use. Sometimes the endoscope assembly 30 is disassembled and assembled during use. If it is directly mounted on the base 10, it may be contaminated by bacteria. A sterile cover (not shown) is connected to the sterile holder 20, and the endoscope assembly 30 is mounted on the sterile holder 20 to avoid bacterial contamination.

[0052] In this embodiment, the aseptic cartridge 20 has an inner housing 21 and an outer housing 22. The inner housing 21 includes: an annular portion 211; and a proximal side plate portion 213, which is connected to the proximal side of the annular portion 211 and extends in a direction perpendicular to the central axis L. In this embodiment, the outer peripheral surface of the annular portion 211 is located on an imaginary conical surface centered on the central axis L. The outer diameter of the outer peripheral surface of the annular portion 211 when viewed in the direction of the central axis L increases as it moves toward the proximal side. The annular portion 211 has: a first storage portion 2111 for storing the first button C12 described below; and a second storage portion 2112 for storing the third button S2 described below. The first storage portion 2111 is open toward the outer peripheral side (in other words, the radial outer side centered on the central axis L), so that the first button C12 can be stored in the first storage portion 2111 from the outer peripheral side. The first storage portion 2111 is configured to allow the first button C12 to move in the radial direction (radial direction centered on the central axis L). The first receiving portion 2111 has an inner surface facing the outer peripheral side (see Figure 3). The second storage portion 2112 is open toward the outer peripheral side, so that the third button S2 can be stored in the second storage portion 2112 from the outer peripheral side. The second storage portion 2112 is configured to allow the third button S2 to move in the radial direction. The second storage portion 2112 also has an inner surface facing the outer peripheral side. The outer shell 22 roughly wraps the inner shell 21 from the outside. On the distal side in the direction of the central axis L, the outer shell 22 has a second distal surface 221. The second distal surface 221 covers the distal side surface of the inner shell 21 on the distal side. In addition, the outer shell 22 of the sterile card seat 20 has a conical second side wall 222 extending from the outer peripheral edge of the second distal surface 221 to the proximal side along the direction of the central axis L. In this embodiment, the outer diameter of the second side wall 222 when viewed in the direction of the central axis L increases as it moves toward the proximal side. The second side wall 222 covers all or part of the outer peripheral surface of the inner shell 21 from the outer peripheral side. The outer shell 22 further has a first notch 223 for exposing the first button C12 and a second notch 224 for exposing the third button S2. The first notch 223 and the second notch 224 penetrate the second side wall 222 in the radial direction respectively.

[0053] The endoscope assembly 30 is located at the distal end of the sterile cartridge 20. The endoscope assembly 30 comprises a support seat 30B and an endoscope body 30A disposed in the support seat 30B. The endoscope body comprises an insertion tube (not shown) at the distal end for insertion into a cavity of a human body.

[0054] In the present embodiment, the support seat 30B of the endoscope assembly 30 has a proximal side housing 31 and a distal side housing 32. The proximal side housing 31 includes: a second plate portion 311, which extends in a direction perpendicular to the central axis L; a first annular wall 312 (equivalent to the "first peripheral wall portion" of the present invention), which extends from the outer peripheral edge of the second plate portion 311 to the proximal side along the central axis L direction; and a second annular portion 314, which is connected to the second plate portion 311 on the proximal side. In the present embodiment, the first annular wall 312 is conical. The outer diameter of the first annular wall 312 when viewed in the direction of the central axis L increases as it moves toward the proximal side. When the base 10, the sterile cartridge 20 and the endoscope assembly 30 are installed, the first button C12 is covered by the first annular wall 312.

[0055] When observed along the direction of the central axis L, the second annular portion 314 is located on the inner peripheral side (in other words, radially inward with the central axis L as the center) of the first annular wall 312. A step structure is formed between the first annular wall 312 and the second annular portion 314. The first annular wall 312 is provided with a third notch 3121 (equivalent to the "notch" of the present invention). The third notch 3121 radially penetrates the first annular wall 312. When the base 10, the sterile card holder 20 and the endoscope assembly 30 are installed, the first annular wall 312 surrounds the sterile card holder 20 from the outer peripheral side, and the notch exposes the third button S2. In the present embodiment, the third notch 3121 extends to the proximal side end of the first annular wall 312. In other words, the third notch 3121 opens to the proximal side. When the sterile cartridge 20 and the endoscope assembly 30 are mounted, the third button S2 (the third pressing plate S21 described below) moves relative to the endoscope assembly 30 through the opening of the third notch 3121 that opens toward the proximal end to the area enclosed by the third notch 3121 .

[0056] The second annular portion 314 has a third receiving portion 3131 for receiving the second button C22 described below. The third receiving portion 3131 is open toward the outer peripheral side, so that the second button C22 can be received in the third receiving portion 3131 from the outer peripheral side. The third receiving portion 3131 is configured to allow the second button C22 to move in the radial direction. The third receiving portion 3131 has an inner surface facing the outer peripheral side (see Figure 3 ).

[0057] The distal housing 32 includes a third annular wall 322 extending from the outer periphery of the second plate portion 311 toward the distal side in the direction of the central axis L. The third annular wall 322 surrounds (covers) the second annular portion 314 of the proximal housing 31 from the circumference.

[0058] In the installed state, the proximal side end of the third annular wall 322 and the step structure between the first annular wall 312 and the second annular portion 314 are opposite in the direction of the central axis L. The third annular wall 322 also has a fourth notch 3221 for exposing the second button C22. The fourth notch 3221 penetrates the third annular wall 322 in the radial direction.

[0059] The sterile cartridge 20 is disposed between the base 10 and the endoscope assembly 30. The sterile cartridge 20 is detachably connected to the base 10 via a first connection mechanism C1. On the other hand, the sterile cartridge 20 is detachably connected to the endoscope assembly via two second connection mechanisms C2 disposed at intervals in the circumferential direction around the central axis L.

[0060] (First connecting mechanism)

[0061] The first connection mechanism C1 includes: a first hooking portion C11; a first button C12; a first hooked portion C13 for the first hooking portion to hook; a first elastic force-applying component T1, which applies force to the first button C12 toward the outer peripheral side centered on the central axis L; a first limiter, which limits the movement of the first button C12 toward the outer peripheral side; and a second limiter, which limits the movement of the first button C12 toward the inner peripheral side. In this embodiment, two first connection mechanisms C1 are arranged at intervals in the circumferential direction. Preferably, the two first connection mechanisms C1 (the first buttons C12) are arranged 180 degrees apart in the circumferential direction, so that the two first connection mechanisms C1 can be easily operated. Preferably, either the first hooking portion and the first hooked portion are formed as a whole with the first button, thereby reducing the number of components and simplifying the assembly process. In this embodiment, the first hooked portion C13 is provided on the first button C12.

[0062] The first hook portion C11 and the first button C12 are disposed on one of the base 10 and the sterile card holder 20. In the present embodiment, the first hook portion C11 and the first button C12 are disposed on the sterile card holder 20. The first hook portion C11 protrudes from the proximal side surface of the first button C12 toward the proximal side along the direction of the central axis L. The first hook portion C11 has a hook portion at the tip end that is hooked on the first hooked portion C13. In the present embodiment, two first hook portions C11 are arranged at intervals in the circumferential direction around the central axis L. Preferably, the two first hook portions C11 are arranged 180 degrees apart in the circumferential direction. In more detail, the two first hook portions C11 are respectively located at positions symmetrical about the central axis L by 180 degrees of rotation.

[0063] In this embodiment, two first hooked portions C13 are arranged at intervals in the circumferential direction around the central axis L corresponding to the first hooking portion C11. Preferably, the two first hooked portions C13 are arranged 180 degrees apart in the circumferential direction. More specifically, the two first hooked portions C13 are located at positions symmetrically rotated 180 degrees around the central axis L.

[0064] The first hooked portion C13 is provided on the other of the base 10 and the sterile cartridge 20. In the present embodiment, the first hooked portion C13 is provided on the base 10. The wall surface on the outer peripheral side of the through hole H in the first distal end surface 11 of the base 10 constitutes the first hooked portion C13.

[0065] As described above, the first button C12 is stored in the first storage portion 2111. The first button C12 includes: a first pressing plate C121; two first sub-plates C122; and two first column portions C123.

[0066] The first pressing plate C121 is used for pressing from the outer peripheral side. The first pressing plate C121 of this embodiment is in a conical shape. The first pressing plate C121 protrudes radially outward from the annular portions 211 on both sides of the first storage portion 2111 in the inner shell 21 of the aseptic cartridge 20 .

[0067] The two first sub-plates C122 extend from the first pressing plate C121 to both sides in the circumferential direction (circumferential direction around the central axis L). The two first sub-plates C122 are, for example, located at a position closer to the inner circumference than the outer circumferential surface of the first pressing plate C121. More specifically, the radial position of the outer circumferential surface of the two first sub-plates C122 may be the same as the radial position of the outer circumferential surface of the annular portion 211 on both sides of the first housing portion 2111, or may be closer to the inner circumference than the radial position of the outer circumferential surface of the annular portion 211 on both sides of the first housing portion 2111.

[0068] When the inner shell 21 and the outer shell 22 of the sterile card holder 20 are assembled, the first notch 223 of the outer shell 22 of the sterile card holder 20 exposes the first pressing plate C121 in the first button C12. The outer shell 22 on both sides of the first notch 223 in the circumferential direction is opposite to the two first sub-plates C122 from the outer circumferential side, forming a first limit portion that limits the movement of the first button C12 to the outer circumferential side.

[0069] The two first column portions C123 protrude from the back side (the surface facing the inner circumference) of the first pressing plate C121 toward the inner circumference. Each first column portion C123 is provided with a first elastic force-applying component T. For example, the first elastic force-applying component may be a coil spring. However, it is not limited thereto, and other known elastic force-applying components may also be used as long as they can apply force to the first button C12 toward the outer circumference. When the first button C12 is accommodated in the first receiving portion 2111, one end of the first elastic force-applying component T1 mounted on the first column portion C123 abuts against the back side of the first pressing plate C121, and the other end abuts against the inner surface of the first receiving portion 2111 facing the outer circumference. The inner surface of the first receiving portion 2111 facing the outer circumference constitutes a second limiting portion that limits the movement of the first button C12 toward the inner circumference.

[0070] As described above, in the state where the inner shell 21 and the outer shell 22 of the sterile card holder 20 are assembled, the first notch 223 of the outer shell 22 of the sterile card holder 20 exposes the first pressing plate C121 in the first button C12. Preferably, when viewed along the center axis L, the first button C12 is located within the range surrounded by the outer contour of the sterile card holder 20. For example, in the state where the base 10, the sterile card holder 20 and the endoscope assembly 30 are installed, when viewed along the center axis L, the first pressing plate C121 fits the circular outer contour of the sterile card holder 20. In other words, the outer peripheral surface of the first pressing plate C121 coincides with the virtual cone that constitutes the outer contour of the sterile card holder 20.

[0071] The sterile card holder 20 and the base 10 can be disassembled from the installed state by pressing the first button C12. Specifically, the first hooking portion C11 and the first hooked portion C13 can be released by pressing the first button C12 toward the inner peripheral side. When the base 10 and the sterile card holder 20 are installed, the base 10 and the sterile card holder 20 are brought close to each other in the direction of the central axis L, and the first hooking portion C11 is hooked on the first hooked portion C13 through the through hole H. Preferably, the first hooking portion C11 and the first hooked portion C13 are in the shape of an arc extending in the circumferential direction when viewed in the direction of the axial axis L (the contact portion between the first hooking portion C11 and the first hooked portion C13 is in the shape of an arc extending in the circumferential direction when viewed in the direction of the axial axis L), thereby increasing the hooking area and making the first hooking portion C11 more stably hooked on the first hooked portion C13. In this case, the through hole H is formed as an arc-shaped long hole extending in the circumferential direction.

[0072] When the base 10 and the sterile cartridge 20 are disassembled, the first button C12 is pressed toward the inner side to move toward the inner side against the force of the first elastic force component T1, and the first hook portion C11 is withdrawn from the through hole H in such a manner that the sterile cartridge 20 moves away from the base 10 in the direction of the center axis L.

[0073] (Second connecting mechanism)

[0074] The second connection mechanism C2 has: a second hooking portion C21; a second button C22; a second hooked portion C23 for the second hooking portion to hook; a second elastic force-applying member, which applies force to the second button C22 toward the outer peripheral side centered on the central axis L; a third limit portion, which limits the movement of the second button C22 toward the outer peripheral side; and a fourth limit portion, which limits the movement of the second button C22 toward the inner peripheral side. In this embodiment, two second connection mechanisms C2 are arranged at intervals in the circumferential direction. Preferably, the two second connection mechanisms C2 (the second buttons C22) are arranged 180 degrees apart in the circumferential direction, so that the two second connection mechanisms C2 can be easily operated. Preferably, either the second hooking portion or the second hooked portion is formed integrally with the second button. In this embodiment, the second hooking portion C21 is provided on the second button C22.

[0075] The second hook portion C21 and the second button C22 are provided in one of the sterile card holder 20 and the endoscope assembly 30. In the present embodiment, the second hook portion C21 and the second button C22 are provided in the endoscope assembly 30. The second hook portion C21 has a hook portion hooked to the second hooked portion C23.

[0076] In this embodiment, two second hooking parts C21 are arranged at intervals in the circumferential direction around the central axis L. Preferably, the two second hooking parts C21 are arranged 180 degrees apart in the circumferential direction. More specifically, the two second hooking parts C21 are located at positions symmetrical about the central axis L by 180 degrees.

[0077] The second hooked portion C23 is provided on the other of the sterile card holder 20 and the endoscope assembly 30. In the present embodiment, the second hooked portion C23 is provided on the sterile card holder 20. The sterile card holder 20 has a first protrusion 2211 protruding from a position close to the outer peripheral side in the second distal end surface 221 of the outer shell 22 toward the distal side along the direction of the central axis L. The first protrusion 2211 has a through hole 2211a penetrating in the radial direction. The through hole 2211a allows the hook portion of the second hooking portion C21 to pass through in the radial direction and hook on the second hooked portion C23. The portion of the first protrusion 2211 that is closer to the endoscope assembly 30 side (distal side) than the through hole 2211a constitutes the second hooked portion C23.

[0078] As described above, the second button C22 is received in the third receiving portion 3131. The second button C22 comprises: a second pressing plate C221; two second sub-plates C222; and two second pillars C223 (see Figure 7 ).

[0079] The second pressing plate C221 is used for pressing operation from the outer peripheral side. When viewed along the central axis L, the second pressing plate C221 is in an arc shape. The second pressing plate C221 protrudes radially outward more than the second annular portion 314 of the proximal side housing 31 on both sides of the third receiving portion 3131 (see FIG. Figure 8 ). When viewed along the central axis L, the second pressing plate C221 protrudes radially outward more than the circular outer contour of the second annular portion 314.

[0080] The two second sub-plates C222 extend from the second pressing plate C221 to both sides in the circumferential direction. The two second sub-plates C222 are, for example, located at a position closer to the inner circumference than the outer circumference of the second pressing plate C221. More specifically, the radial position of the outer circumference of the two second sub-plates C222 may be the same as the radial position of the outer circumference of the second annular portion 314 on both sides of the third receiving portion 3131, or may be closer to the inner circumference than the radial position of the outer circumference of the second annular portion 314 on both sides of the third receiving portion 3131.

[0081] When the proximal housing 31 and the distal housing 32 of the endoscope assembly 30 are assembled, the second pressing plate C221 in the second button C22 is exposed by the fourth notch 3221 of the third annular wall 322 of the distal housing 32. The third annular walls 322 on both sides of the fourth notch 3221 in the circumferential direction face the two second sub-plates C222 from the outer circumferential side, forming a third stopper that limits the movement of the second button C22 toward the outer circumferential side.

[0082] The two second column portions C223 protrude from the back side (the surface facing the inner circumference) of the second pressing plate C221 and the second sub-plate C222 toward the inner circumference, spanning the second pressing plate C221 and the second sub-plate C222. Each second column portion C223 has a second elastic force member receiving portion C2231 for receiving the second elastic force member. When the second button C22 is received in the third receiving portion 3131, one end of the second elastic force member received in the second elastic force member receiving portion C2231 abuts against the bottom wall of the second elastic force member receiving portion C2231, and the other end abuts against the inner surface of the third receiving portion 3131 facing the outer circumference. The inner surface of the third receiving portion 3131 facing the outer circumference constitutes a fourth limit portion for limiting the movement of the second button C22 toward the inner circumference. For example, the second elastic force member may be a coil spring. However, the present invention is not limited thereto, and other known elastic force-applying components may also be used as long as they can apply force to the second button C22 toward the outer peripheral side.

[0083] The second hooking portion C21 is arranged between the two second column portions C223. In more detail, the second hooking portion C21 is arranged between the inner peripheral end surfaces of the two second column portions C223. A passage open on both sides in the direction of the central axis L is formed between the second pressing plate C221 and the second hooking portion C21, and the passage is provided for the second hooked portion C23 to enter and exit. In this embodiment, the hook portion of the second hooking portion C21 protrudes toward the outer peripheral side. When the second hooked portion C23 moves to a specified position between the second pressing plate C221 and the second hooking portion C21, the hook portion of the second hooking portion C21 is hooked on the second hooked portion C23 under the action of the second elastic force applying member. Preferably, the second hooking portion C21 and the second hooked portion C23 are in an arc shape extending in the circumferential direction when viewed in the direction of the axial axis L, thereby increasing the hooking area and making the second hooking portion C21 more stably hooked on the second hooked portion C23.

[0084] In this embodiment, two second hooked portions C23 are arranged at intervals in the circumferential direction around the central axis L corresponding to the second hooking portion C21. Preferably, the two second hooked portions C23 are arranged 180 degrees apart in the circumferential direction. More specifically, the two second hooked portions C23 are respectively located at positions symmetrically rotated 180 degrees around the central axis L.

[0085] As described above, in the state where the proximal housing 31 and the distal housing 32 of the endoscope assembly 30 are assembled, the fourth notch 3221 of the third annular wall 322 of the distal housing 32 exposes the second pressing plate C221 in the second button C22. Preferably, when viewed along the center axis L, the second button C22 is located within the range surrounded by the outer contour of the endoscope assembly 30. For example, in the state where the base 10, the sterile card holder 20 and the endoscope assembly 30 are installed, when viewed along the center axis L, the second pressing plate C221 fits the circular outer contour of the endoscope assembly 30. In other words, the outer peripheral surface of the second pressing plate C221 coincides with the virtual circle constituting the outer contour of the endoscope assembly 30. In addition, the second button C22 may also protrude further toward the outer peripheral side than the outer contour of the endoscope assembly 30.

[0086] The hook between the second hooking portion C21 and the second hooked portion C23 can be released by pressing the second button C22 toward the inner peripheral side.

[0087] (Locking mechanism)

[0088] The locking mechanism S comprises: a third hooking portion S1; a third button S2; a third hooked portion S3 (see Fig. 9 ); a third elastic force-applying member that applies force to the third button S2 toward the outer peripheral side centered on the central axis L; a fifth limiter that limits the movement of the third button S2 toward the outer peripheral side; and a sixth limiter that limits the movement of the third button S2 toward the inner peripheral side. In this embodiment, the locking mechanism is provided with one. Preferably, either the third hooking portion and the third hooked portion are formed integrally with the third button. In this embodiment, the third hooking portion S1 is provided on the third button S2.

[0089] The third hooking part S1 and the third button S2 are provided in one of the sterile card holder 20 and the endoscope assembly 30. In the present embodiment, the third hooking part S1 and the third button S2 are provided in the sterile card holder 20. The third hooking part S1 has a hook part hooked to the third hooked part S3.

[0090] The third hooked portion S3 is provided on one of the sterile card holder 20 and the endoscope assembly 30. In this embodiment, the third hooked portion S3 is provided on the endoscope assembly 30. The endoscope assembly 30 has a second protrusion 3111 (see FIG. 1 ) protruding from a position close to the outer circumference of the second plate portion 311 of the support seat 30B toward the proximal side along the direction of the central axis L. Figure 5 , Fig. 9The second protrusion 3111 has a through hole 3111a extending radially therethrough. The through hole 3111a allows the hook of the third hooking portion S1 to pass radially therethrough and hook on the third hooked portion S3. The portion of the second protrusion 3111 closer to the sterile card holder 20 (proximal side) than the through hole 2211a constitutes the third hooked portion S3.

[0091] As described above, the third button S2 is received in the second receiving portion 2112. The third button S2 comprises: a third pressing plate S21; two third sub-plates S22; and two third pillars S23 (see Figure 4 ).

[0092] The third pressing plate S21 is used for pressing operation from the outer peripheral side. The third pressing plate S21 of this embodiment is in the shape of a conical surface. The third pressing plate S21 protrudes radially outward more than the annular portion 211 of the inner shell 21 and the second side wall 222 of the outer shell 22 on both sides of the second receiving portion 2112 in the aseptic card holder 20 (see Figure 2 , Figure 4 ).

[0093] The two third sub-plates S22 extend from the third pressing plate S21 to both sides in the circumferential direction. The two third sub-plates S22 are, for example, located at a position closer to the inner circumference than the outer circumferential surface of the third pressing plate S21. More specifically, the radial position of the outer circumferential surface of the two third sub-plates S22 may be the same as the radial position of the outer circumferential surface of the annular portion 211 on both sides of the second receiving portion 2112, or may be closer to the inner circumferential side than the radial position of the outer circumferential surface of the annular portion 211 on both sides of the second receiving portion 2112.

[0094] When the inner shell 21 and the outer shell 22 of the sterile card holder 20 are assembled, the second notch 224 of the outer shell 22 of the sterile card holder 20 exposes the third pressing plate S21 in the third button S2. The outer shell 22 on both sides of the second notch 224 in the circumferential direction is opposite to the two third sub-plates S22 from the outer circumferential side, forming a fifth limiter that limits the movement of the third button S2 to the outer circumferential side.

[0095] Similar to the second button C22, the two third column portions S23 of the third button S2 protrude from the back side (the surface facing the inner circumference) of the third pressing plate S21 and the third sub-plate S22 to the inner circumference. Each third column portion S23 has a third elastic force member storage portion for storing the third elastic force member. When the third button S2 is stored in the second storage portion 2112, one end of the third elastic force member stored in the third elastic force member storage portion abuts against the bottom wall of the third elastic force member storage portion, and the other end abuts against the inner surface of the second storage portion 2112 facing the outer circumference. The inner surface of the second storage portion 2112 facing the outer circumference constitutes a sixth limit portion that limits the movement of the third button S2 to the inner circumference. For example, the third elastic force member can be a coil spring. However, the present invention is not limited thereto, and other known elastic force-applying components may also be used as long as they can apply force to the third button S2 toward the outer peripheral side.

[0096] The third hooking portion S1 is arranged between the two third column portions S23. In more detail, the third hooking portion S1 is arranged between the inner peripheral end surfaces of the two third column portions S23. A passage open on both sides in the direction of the central axis L is formed between the third pressing plate S21 and the third hooking portion S1, and the passage is provided for the third hooked portion S3 to enter and exit. In the present embodiment, the hook portion of the third hooking portion S1 protrudes toward the outer peripheral side. When the third hooked portion S3 moves to a specified position between the third pressing plate S21 and the third hooking portion S1, the hook portion of the third hooking portion S1 is hooked on the third hooked portion S3 under the action of the third elastic force applying member. Preferably, the third hooking portion S1 and the third hooked portion S3 are in an arc shape extending in the circumferential direction when viewed in the direction of the axial axis L, thereby increasing the hooking area and making the third hooking portion S1 more stably hooked on the third hooked portion S3.

[0097] As described above, when the sterile cartridge 20 and the endoscope assembly 30 are installed, the third pressing plate S21 of the third button S2 moves relative to the endoscope assembly 30 to the area enclosed by the third notch 3121 .

[0098] The sterile cartridge 20 and the endoscope assembly 30 can be removed from the mounted state by pressing the second button C22 and the third button S2 toward the inner circumference. The third hooking portion S1 and the third hooked portion S3 can be released by pressing the third button S2.

[0099] When the endoscope assembly 30 and the sterile cartridge 20 are installed, the endoscope assembly 30 and the sterile cartridge 20 are brought close to each other along the central axis L, the second hooking portion C21 is hooked on the second hooked portion C23, and the third hooking portion S1 is hooked on the third hooked portion S3. When the endoscope assembly 30 and the sterile cartridge 20 are disassembled, the operator presses two second buttons C22 (the second buttons C22 on both sides of the endoscope assembly 30) with one hand and presses the third button S2 with the other hand to disassemble the endoscope assembly. At this time, the second button C22 is pressed toward the inner circumference side to move toward the inner circumference side against the force of the second elastic force member, and the third button S2 is pressed toward the inner circumference side to move toward the inner circumference side against the force of the third elastic force member, while the sterile cartridge 20 and the endoscope assembly 30 are separated along the central axis L. Afterwards, the two first buttons C12 (the first buttons C12 on both sides of the sterile card holder 20 ) can be pressed by one hand to remove the sterile card holder 20 .

[0100] In this embodiment, the second button C22 and the third button S2 are offset in the direction of the central axis L. In addition, the second button C22 and the third button S2 are offset in the circumferential direction.

[0101] In addition, the base 10, the sterile cartridge 20 and the endoscope assembly 30 may have an instrument channel and a plurality of motor channels, respectively. In the present embodiment, the base 10, the sterile cartridge 20 and the endoscope assembly 30 are provided with instrument channels at the central position, respectively. In particular, the sterile cartridge 20 is provided with a pipeline extending from the center of the inner shell 21 to the proximal side for the passage of instruments, and the pipeline runs through the hole in the middle of the base 10, so that there is no bacterial contamination when the instruments pass through. A plurality of (in the present embodiment, two) motor channels are arranged around the instrument channel. The motor is connected to the drive line of the endoscope, so as to control the movement of the endoscope insertion tube. In addition, the instrument channel and the motor channel are not necessary, and the setting of the channel can also be adjusted, or at least a part of the channel can be omitted.

[0102] In addition, a positioning structure may be provided between any two adjacent components of the base 10, the sterile holder 20 and the endoscope assembly 30, so that the first connecting mechanism C1, the second connecting mechanism C2 and the locking mechanism S can be easily connected or disconnected at the correct position. For example, one of the adjacent components has a column protruding toward the other, and the other is provided with a hole structure for the column to be inserted / engaged as a snap-on portion. In addition, a positioning structure may also be provided between the inner shell 21 and the outer shell 22 of the sterile holder 20, and between the proximal shell 31 and the distal shell 32 of the endoscope assembly 30. For example, Fig. 9As shown, the endoscope assembly 30 has a column 3112 protruding toward the sterile card seat 20. The column 3112 protrudes from the second plate portion 311 of the support seat 30B toward the sterile card seat 20 side (proximal side) along the central axis L direction. The sterile card seat 20 has a clamping hole 2212, and the clamping hole 2212 is for the column 3112 to be embedded. The clamping hole 2212 has a hole wall extending from the second distal end surface 221 of the sterile card seat 20 to the proximal side.

[0103] <Implementation method 2>

[0104] Similar to Embodiment 1, the endoscope mounting mechanism 102' of Embodiment 2 includes a base 10', a sterile holder 20', and an endoscope assembly 30', and also includes a first connecting mechanism C1', a second connecting mechanism C2', and a locking mechanism S'. Embodiment 2 is different from Embodiment 1 mainly in the specific structures of the first connecting mechanism C1', the second connecting mechanism C2', and the locking mechanism S'.

[0105] like Fig.13 As shown, the base 10 ′ has a first distal end surface 11 ′ and a cylindrical first side wall 12 ′ extending from the outer periphery of the first distal end surface 11 ′ toward the proximal side along the direction of the central axis L′.

[0106] The sterile card holder 20' has an inner shell 21' and an outer shell 22'. The inner shell 21' includes: an annular portion 211'; and a first plate portion 212, which is connected to the inner peripheral side of the annular portion 211' and extends in a direction perpendicular to the central axis L'. The annular portion 211' has: a first receiving portion 2111' for receiving the first button C12' described below; and a second receiving portion 2112' for receiving the third button S2' described below. The outer shell 22' has a second distal surface 221' and a cylindrical second side wall 222' extending from the outer peripheral edge of the second distal surface 221' to the proximal side along the central axis L' direction. The outer shell 22' also has a first notch 223' for exposing the first button C12' and a second notch 224' for exposing the third button S2'.

[0107] The endoscope assembly 30' has a support base 30B' and an endoscope body (not shown) disposed in the support base 30B'. The support base 30B' has a proximal side shell 31' and a distal side shell 32'. The proximal side shell 31' includes: a second plate portion 311', which extends in a direction perpendicular to the central axis L'; a first annular wall 312' (equivalent to the "first peripheral wall portion" of the present invention), which extends from the outer peripheral edge of the second plate portion 311' to the proximal side along the central axis L' direction; and a second annular wall 313, which extends from a position of the second plate portion 311' that is closer to the inner peripheral side than the outer peripheral edge to the distal side along the central axis L' direction (see Fig.15). When the base 10', the sterile card holder 20' and the endoscope assembly 30' are installed, the first button C12' is covered by the first annular wall 312'. In addition, the first annular wall 312' is provided with a third notch 3121' (equivalent to the "notch" of the present invention). The second annular wall 313 has a third receiving portion 3131' for receiving the second button C22' described below. The third receiving portion 3131' is formed concavely from the second annular wall 313 toward the inner circumference.

[0108] The distal housing 32' includes: a third plate portion 321 extending in a direction perpendicular to the central axis L'; a third annular wall 322' extending from the outer periphery of the third plate portion 321 to the proximal side along the central axis L' direction; and a fourth annular wall 323 extending from the outer periphery of the third plate portion 321 to the distal side along the central axis L' direction. The third annular wall 322' wraps around the second annular wall 313 of the proximal housing 31' from the circumferential outer side.

[0109] The first connecting mechanism C1' comprises: a first hooking portion C11'; a first button C12'; a first hooked portion C124 for the first hooking portion to hook, which is arranged on the first button C12'; a first elastic force-applying component, which applies force to the first button C12' toward the outer peripheral side centered on the central axis L'; a first limiting portion, which limits the movement of the first button C12' toward the outer peripheral side; and a second limiting portion, which limits the movement of the first button C12' toward the inner peripheral side.

[0110] The first hook portion C11 ′ is provided on the base 10 ′. The first hook portion C11 ′ protrudes from a position close to the outer circumference of the first distal end surface 11 ′ of the base 10 ′ toward the distal end along the direction of the central axis L′.

[0111] The first hooking portion C11 ′ is hooked on the first hooked portion C124 at the tip end.

[0112] The first button C12' and the first hooked portion C124 are disposed on the sterile card holder 20'. The first button C12' comprises: a first pressing plate C121'; two first sub-plates C122'; and two first pillars C123' (see Fig.16 The outer shell 22' on both sides of the first notch 223' in the circumferential direction is opposite to the two first sub-plates C122' from the outer circumferential side, forming a first limit portion.

[0113] like Fig.16As shown, the two first column portions C123' are arranged across the back sides of the first pressing plate C121' and the first sub-plate C122' and protrude toward the inner circumference. Each first column portion C123' has a first elastic force component receiving portion C1231 for receiving the first elastic force component. When the first button C12' is received in the first receiving portion 2111', one end of the first elastic force component received in the first elastic force component receiving portion C1231 abuts against the bottom wall of the first elastic force component receiving portion C1231, and the other end abuts against the inner surface of the first receiving portion 2111' facing the outer circumference. The inner surface of the first receiving portion 2111' facing the outer circumference constitutes a second limiting portion. For example, a coil spring may be used as the first elastic force component. The first hooked portion C124 is arranged between the two first column portions C123'. A first passage C125 is formed between the first pressing plate C121' and the first hooked portion C124. The first passage C125 is open on both sides in the direction of the central axis L', allowing the first hooking portion C11' to enter and exit.

[0114] When the base 10' and the sterile card holder 20' are installed, the base 10' and the sterile card holder 20' are brought close to each other along the central axis L' direction, and the first hooking portion C11' passes through the first passage C125 and is hooked on the first hooked portion C124. When the base 10' and the sterile card holder 20' are disassembled, the first button C12' is pressed toward the inner circumference to move toward the inner circumference against the force of the first elastic force member, and the first hooking portion C11' is withdrawn from the first passage C125 in such a way that the sterile card holder 20' is separated from the base 10' along the central axis L' direction.

[0115] The second connecting mechanism C2' comprises: a second hooking portion C21'; a second button C22'; a second hooked portion C224 for the second hooking portion C21' to hook, which is arranged on the second button C22'; a second elastic force-applying component, which applies force to the second button C22' toward the outer peripheral side centered on the central axis L'; a third limiting portion, which limits the movement of the second button C22' toward the outer peripheral side; and a fourth limiting portion, which limits the movement of the second button C22' toward the inner peripheral side.

[0116] The second hooking portion C21' is provided on the sterile card holder 20'. The second hooking portion C21' protrudes from the second distal end surface 221' of the sterile card holder 20' close to the outer circumference toward the distal end along the central axis L'. The second hooking portion C21' is hooked on the second hooked portion C224 at the tip.

[0117] The second button C22' and the second hooked portion C224 are provided in the endoscope assembly 30'. Similar to the first button C12', the second button C22' has: a second pressing plate C221'; two second sub-plates; and two second pillars.

[0118] The third annular walls 322 ′ on both sides of the fourth notch 3221 ′ in the circumferential direction are opposite to the two second sub-plates from the outer circumferential side to form a third limiting portion.

[0119] Although not shown in the figure, each second column portion has a second elastic force member receiving portion for receiving the second elastic force member. When the second button C22' is received in the third receiving portion 3131', one end of the second elastic force member received in the second elastic force member receiving portion abuts against the bottom wall of the second elastic force member receiving portion, and the other end abuts against the inner surface of the third receiving portion 3131' facing the outer peripheral side. The inner surface of the third receiving portion 3131' facing the outer peripheral side constitutes a fourth limiting portion. The second hooked portion C224 is, for example, arranged between the two second column portions. A second passage is formed between the second pressing plate C221' and the second hooked portion C224, and the second passage is open on both sides in the direction of the central axis L' for the second hooking portion C21' to enter and exit.

[0120] The locking mechanism S' comprises: a third hooking portion S1'; a third button S2'; a third hooked portion S24 for the third hooking portion S1' to hook, which is arranged on the third button S2'; a third elastic force-applying component, which applies force to the third button S2' toward the outer peripheral side centered on the central axis L'; a fifth limiting portion, which limits the movement of the third button S2' toward the outer peripheral side; and a sixth limiting portion, which limits the movement of the third button S2' toward the inner peripheral side.

[0121] The third hooking portion S1' is provided on the endoscope assembly 30'. The third hooking portion S1' protrudes from a position close to the outer circumference of the second plate portion 311' of the proximal side housing 31' of the endoscope assembly 30' toward the proximal side along the central axis L' direction. The third hooking portion S1' is hooked on the third hooked portion S24 at the tip end.

[0122] The third button S2' and the third hooked portion S24 are disposed on the sterile card holder 20'. Similar to the first button C12', the third button S2' comprises: a third pressing plate S21'; two third sub-plates S22'; and two third pillars. The outer shell 22' on both sides of the circumference of the second notch 224' is opposite to the two third sub-plates S22' from the outer circumference side, forming a fifth limiting portion.

[0123] Although not shown in the figure, each third column portion has a third elastic force member receiving portion for receiving a third elastic force member. When the third button S2' is received in the second receiving portion 2112', one end of the third elastic force member received in the third elastic force member receiving portion abuts against the bottom wall of the third elastic force member receiving portion, and the other end abuts against the inner surface of the second receiving portion 2112' facing the outer peripheral side. The inner surface of the second receiving portion 2112' facing the outer peripheral side constitutes a sixth limiting portion. The third hooked portion S24 is arranged between the two third column portions. A third passage is formed between the third pressing plate S21' and the third hooked portion S24, and the third passage is open on both sides in the direction of the central axis L' for the third hooking portion S1' to enter and exit.

[0124] When the endoscope assembly 30' and the sterile cartridge 20' are installed, the endoscope assembly 30' and the sterile cartridge 20' are brought close to each other along the central axis L' direction, the second hooking portion C21' is hooked on the second hooked portion C224, and the third hooking portion S1' is hooked on the third hooked portion S24. When the endoscope assembly 30' and the sterile cartridge 20' are disassembled, the operator presses the two second buttons C22' with one hand and the third button S2' with one hand to disassemble the endoscope assembly. At this time, the second button C22' is pressed toward the inner circumference side so that the second button C22' moves toward the inner circumference side against the force of the second elastic force member, and the third button S2' is pressed toward the inner circumference side so that the third button S2' moves toward the inner circumference side against the force of the third elastic force member, while the sterile cartridge 20' and the endoscope assembly 30' are separated along the central axis L' direction. Afterwards, the two first buttons C12' can be pressed by one hand to remove the sterile cartridge 20'.

[0125] <Other Modifications>

[0126] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned embodiments.

[0127] In the above embodiment, an example is given in which the first connection mechanism has a first hooking portion, a first hooked portion, a first button, a first elastic force applying member, a first limiting portion, and a second limiting portion. However, it is not limited thereto, and other known structures that can detachably connect the sterile card holder and the base can also be used, for example, other known structures that have a first button that can detach the sterile card holder and the base from the installed state by pressing can be used. The above situation is also the same for the second connection mechanism and the locking mechanism.

[0128] In addition, in the above-mentioned embodiment, an example of the endoscope mounting mechanism being applied to a bronchoscope is given, but the invention is not limited thereto and may also be applied to other endoscope devices such as a gastroscope and a colonoscope, or other surgical devices other than an endoscope device.

[0129] The specific embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, it is to be understood that the above description does not limit the present invention in any form, and the technical features in each embodiment can be combined with each other in any way to form a new embodiment. For example, a certain structural element of all the structural elements shown in a certain embodiment can be added to the structural elements of another embodiment, or some structural elements of all the structural elements shown in a certain embodiment can be deleted from the embodiment. In addition, after understanding the above specific embodiments, those skilled in the art can make various other modifications and changes to the present invention as needed. These do not deviate from the essential content of the present invention.

Claims

1. A surgical device installation mechanism, characterized in that: The surgical device installation mechanism comprises a base (10, 10'), a sterile card seat (20, 20') and a surgical device assembly (30, 30') in sequence along the direction of the central axis (L, L'). The surgical device installation mechanism also includes: a first connecting mechanism (C1, C1'), the first connecting mechanism detachably connecting the sterile card holder to the base; Two second connection mechanisms (C2, C2') arranged at intervals in the circumferential direction around the central axis, the second connection mechanisms detachably connecting the surgical device assembly to the sterile cartridge; and A locking mechanism (S, S') removably connects the surgical device assembly to the sterile cartridge.

2. The surgical device mounting mechanism according to claim 1, characterized in that: The first connection mechanism has a first button (C12, C12') for removing the sterile card holder and the base from the installed state by pressing operation, The surgical device assembly has a cylindrical first peripheral wall portion (312, 312'), When the base, the sterile cartridge, and the surgical device assembly are in an installed state, the first button is covered by the first peripheral wall portion.

3. The surgical device mounting mechanism according to claim 2, characterized in that: When viewed along the central axis, the first button is located within a range surrounded by an outer contour of the sterile cartridge.

4. The surgical device mounting mechanism according to claim 2, characterized in that: The first connecting mechanism comprises: A first hook portion (C11, C11') provided on one of the base and the aseptic cartridge; and a first hooked portion (C13, C124) provided on the other of the base and the sterile card holder and hooked by the first hooking portion, The first hooking portion and the first hooked portion are released from hook by pressing the first button.

5. The surgical device mounting mechanism according to claim 1, characterized in that: The second connection mechanism has a second button (C22, C22'), and the second button is arranged on one of the surgical device assembly and the sterile card holder. The locking mechanism has a third button (S2, S2'), and the third button is arranged on the other of the surgical device assembly and the sterile cartridge. The sterile cartridge and the surgical device assembly are removed from the installed state by pressing the second button and the third button.

6. The surgical device mounting mechanism according to claim 5, characterized in that: The second button and the third button are offset in the direction of the central axis and / or in the circumferential direction.

7. The surgical device mounting mechanism according to claim 5, characterized in that: The second button is disposed on the surgical device assembly, The third button is arranged on the sterile card holder. The surgical device assembly has a cylindrical first peripheral wall portion, wherein the first peripheral wall portion is provided with notches (3121, 3121'). When the base, the sterile cartridge, and the surgical device assembly are installed, the first peripheral wall portion surrounds the sterile cartridge from the outer peripheral side, and the notch exposes the third button.

8. The surgical device mounting mechanism according to claim 1, characterized in that: The second connection mechanism comprises: A second hook portion (C21, C21') provided on one of the surgical device assembly and the sterile cartridge; A second hooked portion (C23, C224) provided on the other of the surgical device assembly and the sterile cartridge and hooked by the second hooking portion; as well as a second button, by pressing the second button, the hook between the second hooking part and the second hooked part is released; The locking mechanism has: a third hooking portion (S1, S1') provided on the other of the surgical device assembly and the sterile cartridge; A third hooked portion (S3, S24) provided on one of the surgical device assembly and the sterile cartridge and hooked by the third hooking portion; as well as The third button is pressed to release the hook between the third hooking portion and the third hooked portion.

9. The surgical device mounting mechanism according to claim 1, characterized in that: Two of the first connection mechanisms are arranged at intervals in the circumferential direction.

10. The surgical device mounting mechanism according to any one of claims 1 to 9, characterized in that: The surgical device mounting mechanism is an endoscope mounting mechanism, and the surgical device component is an endoscope component.

11. A surgical device, characterized in that: The invention comprises the surgical device mounting mechanism according to any one of claims 1 to 10.

Images