Fixing system for endoscopy

Abstract

A securing system for an endoscope, comprising: a cannula device; the first moving device is connected with the sleeve device; a second movement device in contact with the first movement device; the fixing device is connected with the second movement device, and the fixing device enables the first movement device and the second movement device to be in a relative movement state or a fixed state; when the first movement device and the second movement device are in the relative movement state, the first movement device can move relative to the second movement device. When the first movement device and the second movement device are in the fixed state, the first movement device and the second movement device are fixed to each other.

Description

Fixing systems for endoscopes Technical Field

[0001] The present application relates to a fixing system for an endoscope, and more particularly to a fixing system for an endoscope that can adjust an image acquisition direction according to needs and can fix the image acquisition direction according to needs. Background Art

[0002] During traditional endoscope use, users (e.g., medical personnel) must control the endoscope's image acquisition direction by gripping it. This makes it difficult for users to accurately control other medical devices (e.g., those located within the endoscope's sheath) while observing through the endoscope. Therefore, a fixation system for an endoscope is needed that can adjust and fix the image acquisition direction as needed.

[0003] Summary of the Invention

[0004] In order to solve the above problems, one concept of the present application is to provide a fixing system for an endoscope that can adjust the image acquisition direction according to needs and can fix the image acquisition direction according to needs.

[0005] Based on the above concept, the present application provides a fixing system for an endoscope, comprising: a sleeve device; a first moving device connected to the sleeve device; a second moving device contacting the first moving device; a fixing device connected to the second moving device, the fixing device enabling the first moving device and the second moving device to be in a relatively movable state or a fixed state; wherein when the first moving device and the second moving device are in the relatively movable state, the first moving device can move relative to the second moving device; wherein when the first moving device and the second moving device are in the fixed state, the first moving device and the second moving device are fixed to each other.

[0006] In a preferred embodiment of the present application, the first motion device includes a first half and a second half, and the first half is detachably connected to the second half.

[0007] In a preferred embodiment of the present application, the first inner sidewall of the first movement device has a receiving groove, and the first connecting portion of the sleeve device is partially received in the receiving groove.

[0008] In a preferred embodiment of the present application, the second motion device defines a fixed axis, the first motion device defines a moving axis, and there is a three-dimensional angle between the fixed axis and the moving axis; wherein when the first motion device and the second motion device are in the relatively movable state, the first motion device can move relative to the second motion device to change the three-dimensional angle.

[0009] In a preferred embodiment of the present application, the second motion device defines a fixed axis, the first motion device defines a moving axis, and there is a three-dimensional angle between the fixed axis and the moving axis; wherein when the first motion device and the second motion device are in the fixed state, the first motion device and the second motion device are fixed to each other to maintain the three-dimensional angle at a specific three-dimensional angle.

[0010] In a preferred embodiment of the present application, the first outer wall surface of the first motion device is a convex arc surface, and the second inner wall surface of the second motion device is a concave arc surface. The first motion device contacts the second inner wall surface of the second motion device through the first outer wall surface, and when the first motion device and the second motion device are in the relatively movable state, the first motion device can move relative to the second inner wall surface of the second motion device through the first outer wall surface.

[0011] In a preferred embodiment of the present application, the second motion device has a second inner tube diameter, and the lower half of the second inner tube diameter gradually shrinks from top to bottom.

[0012] In a preferred embodiment of the present application, the second motion device has a bottom inner tube diameter, the first motion device has an outer tube diameter, and the bottom inner tube diameter is smaller than the outer tube diameter.

[0013] In a preferred embodiment of the present application, the fixing device has a third outer wall surface, which has an external threaded portion; wherein the second moving device has a second inner wall surface, which has an internal threaded portion; wherein the fixing device is connected to the internal threaded portion of the second moving device through the external threaded portion.

[0014] In a preferred embodiment of the present application, there is a gap between the first moving device and the second moving device, and the fixing device moves toward the gap relative to the second moving device and contacts the first moving device, thereby placing the first moving device and the second moving device in the fixed state.

[0015] In a preferred embodiment of the present application, there is a gap between the first motion device and the second motion device, and the fixing device moves relative to the second motion device in a direction away from the gap and separates from the first motion device, so that the first motion device and the second motion device are in the relatively movable state.

[0016] In a preferred embodiment of the present application, the fixing device has a first inner tube diameter, and the lower half of the first inner tube diameter gradually decreases from bottom to top.

[0017] In a preferred embodiment of the present application, the second motion device has a fixing portion, and the fixing portion is fixed to an external device.

[0018] In a preferred embodiment of the present application, the fixing system further includes an endoscope device, the endoscope device is connected to the sleeve device, and the endoscope device is at least partially extended and disposed in the sleeve device.

[0019] In a preferred embodiment of the present application, the endoscope device has a guide groove extending from the endoscope device, and the inner wall of the sleeve of the sleeve device has a guide protrusion, which is at least partially accommodated in the guide groove.

[0020] In a preferred embodiment of the present application, the endoscope device has a second connecting portion, the sleeve device has a third connecting portion, and the endoscope device is connected to the third connecting portion of the sleeve device through the second connecting portion.

[0021] In a preferred embodiment of the present application, the fixing system further includes a closed-hole device, which is connected to the sleeve device and at least partially extends inside the sleeve device.

[0022] The aforementioned aspects and other aspects of the present application will become more apparent based on the following detailed description of non-limiting embodiments and with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1A is a cross-sectional view of a specific embodiment of a fixing system for an endoscope according to the present application.

[0024] FIG1B is a cross-sectional view of a specific embodiment of the fixing system for an endoscope according to the present application.

[0025] FIG2A is a schematic diagram of a specific embodiment of the first motion device of the fixing system of the present application.

[0026] FIG. 2B is a schematic diagram of a specific embodiment of the first motion device of the fixing system of the present application.

[0027] FIG3A is a schematic diagram of a specific embodiment of a sleeve device of the fixing system of the present application.

[0028] FIG3B is a schematic diagram of the sleeve device connected to the first motion device.

[0029] FIG. 4A is a schematic diagram of an endoscope device according to a specific embodiment of the fixing system of the present application.

[0030] FIG4B is a schematic diagram of an endoscope device according to a specific embodiment of the fixing system of the present application.

[0031] FIG5 is a schematic diagram of a specific embodiment of the closed-cell device of the fixing system of the present application.

[0032] FIG6A is a schematic diagram of a specific embodiment of the second motion device of the fixing system of the present application.

[0033] FIG6B is a partial cross-sectional view of a specific embodiment of the second motion device of the fixing system of the present application.

[0034] FIG. 7A is a schematic diagram of a specific embodiment of a fixing device of the fixing system of the present application.

[0035] FIG7B is a cross-sectional view of a specific embodiment of the fixing device of the fixing system of the present application.

[0036] FIG8A is a schematic diagram showing the movement of the first motion device relative to the second motion device.

[0037] FIG8B is a schematic diagram showing the first motion device moving relative to the second motion device.

[0038] FIG. 9A is a schematic diagram of a specific embodiment of the fixing system of the present application.

[0039] FIG9B is a schematic diagram of a specific embodiment of the fixing system of the present application.

[0040] Explanation of reference numerals: 100 fixing system; 110 sleeve device; 111 channel; 112 first end; 113 sleeve inner wall; 114 second end; 115 first connecting portion; 120 first movement device; 121 movement axis; 122 first inner wall surface; 124 accommodating groove; 130 second movement device; 131 fixing axis; 132 second inner wall surface; 133 internal threaded portion; 140 fixing device; 142 third outer wall surface; 143 external threaded portion; 200 first movement device; 210 first half; 213 inner wall surface; 214 groove; 216-219 first joint portion; 220 second half; 223 inner wall surface; 224 groove; 226-229 second joint portion; 230 First inner wall surface; 240 accommodating groove; 250 First outer wall surface; 310 sleeve device; 311 fixing portion; 312 fixing protrusion; 313 fixing portion; 314 fixing protrusion; 315 first connecting portion; 316 third connecting portion; 317 third connecting portion; 318 fixing protrusion; 319 fixing protrusion; 320 first movement device; 450 endoscope device; 451 second connecting portion; 452 first front end portion; 453 second front end portion; 454 guide groove; 455 guide groove; 560 obturator device; 561 disc portion; 562 notch portion; 563 obturator portion; 630 second movement device; 631 fixed axial direction; 632 Second inner wall surface; 633 internal thread portion; 634 Main body; 635 Bracket; 636 Fixing portion; 637 Through hole; 638 Bottom inner diameter; 740 Fixing device; 742 Third outer wall; 743 External threaded portion; 745 Inner wall; 746 Control portion; 810 Sleeve device; 820 First moving device; 830 Second moving device; 890 Gap;910 sleeve device; 920 first moving device; 930 second moving device; 940 fixing device; 1010 three-dimensional angle; 1020 gap; 1030 away direction; 1040 toward direction. DETAILED DESCRIPTION

[0041] Please refer to Figures 1A and 1B , which illustrate cross-sectional views of a specific embodiment of a fixation system for an endoscope according to the present application. As shown in Figures 1A and 1B , the fixation system 100 includes a sleeve device 110, a first motion device 120, a second motion device 130, and a fixation device 140. The first motion device 120 is connected to the sleeve device 110, and the second motion device 130 contacts the first motion device 120. The fixation device 140 is connected to the second motion device 130 and can place the first motion device 120 and the second motion device 130 in a relatively movable state or a fixed state. When the first motion device 120 and the second motion device 130 are in the relatively movable state, the first motion device 120 can move relative to the second motion device 130. When the first motion device 120 and the second motion device 130 are in the fixed state, the first motion device 120 and the second motion device 130 are fixed to each other (the first motion device 120 cannot move relative to the second motion device 130). In this way, a user (such as a medical professional) can operate the fixing device 140 to place the first motion device 120 and the second motion device 130 in a relatively movable state or a fixed state.

[0042] In one embodiment, the sleeve device 110 is connected to the first motion device 120, and the sleeve device 110 and the first motion device 120 are fixed to each other. In this way, the sleeve device 110 can move with the first motion device 120. Preferably, the first inner sidewall 122 of the first motion device 120 has an accommodating groove 124, and the first connecting portion 115 of the sleeve device 110 can be partially accommodated in the accommodating groove 124, thereby fixing the sleeve device 110 and the first motion device 120 to each other. Preferably, the central axis of the sleeve device 110 (which may be referred to as the sleeve central axis) is parallel to the central axis of the first motion device 120 (which may be referred to as the first central axis). In one specific embodiment, the second motion device 130 defines a fixed axial direction 131 (the fixed axial direction 131 is parallel to the central axis of the second motion device 130. Preferably, the fixed axial direction 131 extends along the central axis of the second motion device 130. The central axis of the second motion device 130 can be referred to as the second central axis). The first motion device 120 defines a moving axial direction 121 (the moving axial direction 121 is parallel to the central axis of the first motion device 120. Preferably, the moving axial direction 121 extends along the central axis of the first motion device 120). A three-dimensional angle 1010 is defined between the fixed axial direction 131 and the moving axial direction 121. When the first motion device 120 and the second motion device 130 are in a relatively movable state, the first motion device 120 can move relative to the second motion device 130 to change the three-dimensional angle 1010. In this way, the user can adjust the extension direction of the sleeve device 110 as needed. Furthermore, when the first motion device 120 and the second motion device 130 are in a fixed state, the first motion device 120 and the second motion device 130 are fixed to each other (i.e., the first motion device 120 cannot move relative to the second motion device 130), thereby maintaining the three-dimensional angle 1010 at a specific three-dimensional angle. In this way, the user can fix the extension direction of the sleeve device 110 in a specific direction as needed.

[0043] In the embodiment shown in Figures 1A and 1B, the second inner wall 132 of the second motion device 130 may have an internal thread 133, and the third outer wall 142 of the fixing device 140 may have an external thread 143. The fixing device 140 may be connected to the internal thread 133 of the second motion device 130 via the external thread 143. A gap 1020 is defined between the first motion device 120 and the second motion device 130. As needed, the user can move the fixing device 140 relative to the second motion device 130 toward the gap 1020 and contact the fixing device 140, thereby placing the first motion device 120 and the second motion device 130 in a fixed state. Alternatively, as needed, the user can move the fixing device 140 relative to the second motion device 130 in a direction away from the gap 1020 and separate the fixing device 140 from the first motion device 120, thereby placing the first motion device 120 and the second motion device 130 in a relatively movable state.

[0044] In the embodiment shown in FIG1A , the fixing device 140 is moved relative to the second moving device 130 in a direction 1030 away from the gap 1020, separating the fixing device 140 and the first moving device 120 from each other, thereby placing the first moving device 120 and the second moving device 130 in a relatively movable state. Preferably, in the relatively movable state, the fixing device 140 and the first moving device 120 do not contact each other. In the embodiment shown in FIG1B , the fixing device 140 is moved relative to the second moving device 130 toward the gap 1020 (i.e., in a direction 1040), and contacts the first moving device 120, thereby placing the first moving device 120 and the second moving device 130 in the fixed state. Preferably, in the fixed state, the fixing device 140 contacts the first moving device 120 and applies pressure to the first moving device 120, thereby preventing the first moving device 120 from moving relative to the second moving device 130.

[0045] In one embodiment, the fixation system 100 may further include an obturator device (not shown). The obturator device may be connected to the cannula device 110 (e.g., the obturator device may be removably connected to the cannula device 110) and at least partially extend within the cannula device 110. Preferably, the cannula device 110 defines a central channel 111 extending between the first end 112 and the second end 114 of the cannula device 110. While the second end 114 of the cannula device 110 is positioned within the human body (e.g., during head surgery, the second end 114 may be positioned within the cranial cavity, or during other surgical procedures, the second end 114 may be positioned within other parts of the human body. However, it should be understood that the application of the fixation system 100 is not limited to surgical use), the obturator device should be positioned within the channel 111 of the cannula device 110 to prevent the wall of the second end 114 from damaging human tissue. Preferably, the end portion of the obturator device is a non-transparent component, or the end portion of the obturator device may have a specific color. This allows the user to observe the position of the end portion of the obturator device within the human body through a medical imaging system while the cannula device 110 and the obturator device are placed within the human body (the end portion of the obturator device is positioned at the second end 114 of the cannula device 110).

[0046] In one embodiment, the fixation system 100 may further include an endoscope device (not shown). The endoscope device can be connected to the cannula device 110 (e.g., the endoscope device can be removably connected to the cannula device 110) and can extend at least partially within the cannula device 110. Preferably, the cannula device 110 has a central channel 111 extending between the first end 112 and the second end 114 of the cannula device 110. Thus, when the second end 114 of the cannula device 110 is placed within the human body (e.g., during head surgery, the second end 114 can be placed within the cranial cavity, or during other surgical procedures, the second end 114 can be placed within other parts of the human body. However, it should be understood that the application of the fixation system 100 is not limited to surgical use), the user can place the endoscope device (e.g., a medical endoscope) within the channel 111 to obtain images of the human body. Preferably, the cannula device 110 may be transparent, or the cannula device 110 may be at least partially transparent (for example, the second end 114 of the cannula device 110 may be transparent). In this way, the tube wall of the cannula device 110 may not block the field of view of the endoscope device.

[0047] Preferably, the endoscope device may have a guide groove extending along its outer wall. The inner wall 113 of the cannula device 110 may have a guide protrusion extending along at least a section of the inner wall 113. When the endoscope device is placed within the channel 111 of the cannula device 110, the guide protrusion is at least partially accommodated within the guide groove of the endoscope device. Thus, during placement of the endoscope device within the channel 111, the guide groove of the endoscope device and the guide protrusion of the cannula device 110 can guide the endoscope device into the channel 111. The endoscope placed within the cannula device 110 may be described, for example, in Taiwan Patent Application No. 111110998 (entitled "Medical Endoscope System"), the entire contents of which are hereby incorporated by reference into this application. However, it should be understood that the fixing system of the present application can also be used with other types of endoscopes.

[0048] Please refer to Figures 2A and 2B , which illustrate schematic diagrams of a specific embodiment of a first motion device of the fixing system of the present application. As shown in Figures 2A and 2B , the first motion device 200 includes a first half 210 and a second half 220, and the first inner sidewall 230 of the first motion device 200 has a receiving groove 240. The sleeve device of the fixing system can be partially accommodated in the receiving groove 240, thereby connecting the first motion device 200 to the sleeve device and securing it to the sleeve device. Preferably, the first half 210 can be detachably connected to the second half 220 to form the first motion device 200. This allows the user to place the sleeve device between the first and second halves 210, 220 while the first and second halves 210, 220 are separated, and then reconnect the first and second halves 210, 220, so that the sleeve device is accommodated in the receiving groove 240 of the first motion device 200. By this arrangement, the user can connect or separate the first motion device 200 and the sleeve device according to needs. It should be understood that under different needs, the first motion device can also be configured as an integral part, or can be configured to be formed by more components.

[0049] Preferably, the first outer wall surface 250 of the first motion device 200 is a convex arc surface, while the inner wall surface (which may be referred to as the second inner wall surface) of the second motion device is a concave arc surface. The first motion device 200 can contact the second inner wall surface of the second motion device through the first outer wall surface 250, and when the first motion device 200 and the second motion device are in a state of relative motion, the first motion device 200 can move relative to the second inner wall surface of the second motion device through the first outer wall surface 250.

[0050] In one embodiment, the first half 210 may have first engaging portions 216, 217, 218, and 219, and the second half 220 may have second engaging portions 226, 227, 228, and 229. The first engaging portions 216, 217, 218, and 219 of the first half 210 may engage with the second engaging portions 226, 227, 228, and 229 of the second half 220, thereby forming the first motion device 200. The inner sidewall 213 of the first half 210 has a groove 214, and the inner sidewall 223 of the second half 220 has a groove 224. When the first half 210 and the second half 220 are engaged with each other, the groove 214 and the groove 224 form a receiving groove 240. In one embodiment, the first engaging portions 216 , 217 , 218 , 219 may be recessed portions disposed on the first half 210 , and the second engaging portions 226 , 227 , 228 , 229 may be protruding portions disposed on the second half 220 .

[0051] Please refer to Figure 3A , which illustrates a schematic diagram of a sleeve device according to a specific embodiment of the fixing system of the present application. As shown in the embodiment of Figure 3A , the sleeve device 310 may include a first connecting portion 315 and third connecting portions 316 and 317. The first connecting portion 315 is disposed at a first end of the sleeve device 310, and the third connecting portions 316 and 317 are disposed on the first connecting portion 315. The first connecting portion 315 of the sleeve device 310 may be partially received in a receiving groove of the first motion device (see Figure 3B , in which the first connecting portion 315 of the sleeve device 310 is partially received in a receiving groove of the first motion device 320), thereby connecting the first motion device to the sleeve device 310.

[0052] The cannula device 310 can be connected to the second connecting portion of the endoscope device via third connecting portions 316 and 317. Preferably, the third connecting portion 316 has a fixing protrusion 318 at its top, and the third connecting portion 317 has a fixing protrusion 319 at its top. Preferably, the distance between the fixing protrusion 318 and the fixing protrusion 319 is less than the middle width of the second connecting portion (see Figures 4A and 4B and the related description). It should be understood that Figure 3A is merely an example, and the third connecting portion of the cannula device is not limited to that shown in Figure 3A, and the second connecting portion of the endoscope device is not limited to that shown in Figures 4A and 4B. In one embodiment, the third connecting portion of the cannula device can be a recess or a through hole provided on the first connecting portion, and the second connecting portion of the endoscope device can be a protrusion provided on the endoscope device. When the endoscope device is connected to the cannula device, the second connecting portion of the endoscope device can be received within the third connecting portion of the cannula device, thereby correctly positioning the endoscope device on the cannula device. In another specific embodiment, the third connecting portion of the cannula device can be a protrusion provided on the first connecting portion, and the second connecting portion of the endoscope device can be a recessed portion provided on the endoscope device. When the endoscope device is connected to the cannula device, the third connecting portion of the cannula device can be received within the second connecting portion of the endoscope device, thereby correctly positioning the endoscope device on the cannula device.

[0053] In one embodiment, the cannula device 310 may have fixing portions 311 and 313 (which may be referred to as obturator fixing portions), which are disposed on the first connecting portion 315. The fixing portion 311 may have a fixing protrusion 312, and the fixing portion 313 may have a fixing protrusion 314. The obturator device may have a disc portion (see disc portion 561 in FIG. 5 ), which may have a notch portion (see notch portion 562 in FIG. 5 ). During the process of moving the obturator device toward the cannula device 310 and connecting with the cannula device 310, the fixing protrusions 312 and 314 of the cannula device 310 may pass through the notch portion of the obturator device, allowing the obturator device's disc portion to be disposed between the first connecting portion 315 and the fixing protrusions 312 and 314. The obturator device may then be rotated so that the fixing protrusions 312 and 314 of the cannula device 310 abut against the obturator device's disc portion. In this way, the sleeve device 310 and the obturator device can be fixed to each other.

[0054] Please refer to Figures 4A and 4B , which illustrate schematic diagrams of an endoscopic device according to a specific embodiment of the fixing system of the present application. As shown in Figures 4A and 4B , the endoscopic device 450 comprises a second connecting portion 451, a first front end 452, a second front end 453, and guide grooves 454 and 455. The middle portion of the second connecting portion 451 has a width (which may be referred to as the middle width), the upper portion of the second connecting portion 451 has a width (which may be referred to as the upper width), and the lower portion of the second connecting portion 451 has a width (which may be referred to as the lower width). Preferably, the third connecting portion of the cannula device may have two fixing protrusions (the arrangement of which can be seen, for example, in Figure 3A ), with the distance between the two fixing protrusions being less than the middle width of the second connecting portion 451. Preferably, the width of the upper portion tapers upward. Thus, when the second connecting portion 451 of the endoscope device 450 is connected to the third connecting portion of the cannula device, the fixing protrusion of the third connecting portion can be fixed to the upper portion of the second connecting portion 451. Preferably, the width of the lower portion tapers downward. This makes it easier to connect the second connecting portion 451 of the endoscope device 450 to the third connecting portion of the cannula device.

[0055] In the embodiment shown in Figures 4A and 4B, one of the first front end portion 452 and the second front end portion 453 may have an optical sensing portion, and the other may have a liquid circulation portion. The optical sensing portion can obtain an optical image, and the liquid circulation portion can guide liquid (such as water) to the outside thereof to flush the target tissue or flush away foreign matter. The guide grooves 454 and 455 extend on the outer side wall of the endoscopic device 450. When the endoscopic device 450 is placed in the channel of the cannula device, the guide protrusion provided on the channel can be at least partially accommodated in the guide grooves 454 and 455 of the endoscopic device 450, thereby positioning the endoscopic device 450 in the correct position in the channel.

[0056] Please refer to Figure 5, which illustrates a schematic diagram of a specific embodiment of an obturator device according to the fixation system of the present application. As shown in the embodiment shown in Figure 5, obturator device 560 comprises a disc portion 561, a notch portion 562, and an obturator portion 563. Disc portion 561 and notch portion 562 facilitate connection of obturator device 560 to the obturator device fixing portion of a cannula device. Obturator portion 563 can be used to seal the cannula device's passageway during placement within the human body. Preferably, the front end of obturator portion 563 is tapered.

[0057] Please refer to Figures 6A and 6B, wherein Figure 6A illustrates a schematic diagram of a specific embodiment of the second motion device of the fixing system of the present application, and Figure 6B illustrates a partial cross-sectional view of a specific embodiment of the second motion device of the fixing system of the present application. As shown in Figures 6A and 6B, the second motion device 630 includes a main body 634, a bracket portion 635, and a fixing portion 636. The main body 634 is connected to the bracket portion 635, and the bracket portion 635 is connected to the fixing portion 636. The main body 634 has a second inner wall surface 632 and an internal thread portion 633, and the internal thread portion 633 is arranged on the second inner wall surface 632. Preferably, the internal thread portion 633 is arranged on the upper section of the second inner wall surface 632. Preferably, the second inner wall surface 632 is a concave arc surface, and the first outer wall surface of the first motion device is a convex arc surface. The first motion device can contact the second inner wall 633 of the second motion device 630 via the first outer wall. When the first motion device and the second motion device 630 are in a relatively movable state, the first motion device can move relative to the second inner wall 633 of the second motion device 630 via the first outer wall. In this way, the user can adjust the three-dimensional angle between the moving axis of the first motion device and the fixed axis 631 of the second motion device 630.

[0058] Preferably, the fixing portion 636 of the second motion device 630 can be fixed to an external device (the external device can be, for example, a robotic arm, but is not limited thereto). For example, the fixing portion 636 can be fixed to the external device via the through hole 637. Preferably, the second inner wall surface 633 of the second motion device 630 has a second inner diameter (or the second inner wall surface 633 can be said to form a second inner diameter), and the lower half of the second inner diameter gradually shrinks from top to bottom to define the concave arc surface. Preferably, the upper half of the second inner diameter is substantially the same width. Preferably, the bottom inner diameter 638 of the second motion device 630 is smaller than the outer diameter of the first motion device. In this way, the first motion device can be prevented from falling off from the bottom of the second motion device 630.

[0059] Please refer to Figures 7A and 7B , wherein Figure 7A illustrates a schematic diagram of a specific embodiment of a fixing device according to the fixing system of the present application, and Figure 7B illustrates a cross-sectional view of a specific embodiment of a fixing device according to the fixing system of the present application. As shown in Figures 7A and 7B , a fixing device 740 comprises a third outer wall 742, an externally threaded portion 743, an inner wall 745, and a control portion 746. The externally threaded portion 743 is disposed on the third outer wall 742, and the fixing device 740 can be connected to the inner threaded portion of the second motion device via the externally threaded portion 743. The user can use the control portion 746 to adjust the degree of threading between the inner threaded portion of the second motion device and the externally threaded portion 743 of the fixing device 740, thereby moving the fixing device 740 toward the second motion device (i.e., moving the fixing device 740 toward the gap between the first and second motion devices) or away from the second motion device (i.e., moving the fixing device 740 away from the gap). Preferably, the inner wall 745 of the fixing device 740 has a first inner diameter (or the inner wall 745 can be said to form the first inner diameter), and the lower half of the first inner diameter tapers from bottom to top. In this way, the fixing device 740 can more easily enter the gap between the first and second moving devices and contact the first moving device.

[0060] Please refer to Figures 8A and 8B , which illustrate schematic diagrams illustrating the movement of the first motion device relative to the second motion device. In the embodiment shown in Figures 8A and 8B , a sleeve device 810 is connected to the first motion device 820, which contacts the second motion device 830, with a gap 890 defined between the first motion device 820 and the second motion device 830. When the first motion device 820 and the second motion device 830 are in a state capable of relative motion, because the first outer wall of the first motion device 820 is a convex arc surface and the second inner wall of the second motion device 830 is a concave arc surface, the first motion device 820 can move relative to the second inner wall of the second motion device 830 via its first outer wall, thereby adjusting the three-dimensional angle between the moving axis of the first motion device 820 and the fixed axis of the second motion device 830.

[0061] Please refer to Figures 9A and 9B, wherein Figures 9A and 9B respectively illustrate schematic diagrams of a specific embodiment of a fixing system according to the present application. In the embodiment shown in Figures 9A and 9B, the sleeve device 910 is connected to the first moving device 920, the first moving device 920 contacts the second moving device 930, and the fixing device 940 is connected to the second moving device 930. When the fixing device 940 places the first moving device 920 and the second moving device 930 in a relatively movable state, the first moving device 920 can move relative to the second moving device 930 (as shown in Figure 9A). When the fixing device 940 places the first moving device 920 and the second moving device 930 in a fixed state, the first moving device 920 and the second moving device 930 are fixed to each other (as shown in Figure 9B).

[0062] The above description and drawings have thus far illustrated the endoscope fixation system of the present application. However, it should be understood that the various embodiments of the present application are for illustrative purposes only. Various modifications may be made without departing from the scope and spirit of the present application and are intended to be encompassed by the present application. Therefore, the various embodiments described in this specification are not intended to limit the present application. The true scope and spirit of the present application are disclosed in the following claims.

Claims

1. A fixing system for an endoscope, comprising: casing device; a first motion device connected to the sleeve device; a second motion device contacting the first motion device; a fixing device connected to the second motion device, wherein the fixing device enables the first motion device and the second motion device to be in a relatively movable state or a fixed state; When the first motion device and the second motion device are in the relatively movable state, the first motion device can move relative to the second motion device; When the first motion device and the second motion device are in the fixed state, the first motion device and the second motion device are fixed to each other. 2 . The fixing system according to claim 1 , wherein the first movement device comprises a first half and a second half, and the first half is detachably connected to the second half. 3 . The fixing system according to claim 1 , wherein the first inner side wall of the first movement device has an accommodating groove, and the first connecting portion of the sleeve device is partially accommodated in the accommodating groove.

4. A fixing system as described in claim 1, wherein the second motion device defines a fixed axis, the first motion device defines a moving axis, and there is a three-dimensional angle between the fixed axis and the moving axis; wherein when the first motion device and the second motion device are in the relatively movable state, the first motion device can move relative to the second motion device to change the three-dimensional angle.

5. A fixing system as described in claim 1, wherein the second motion device defines a fixed axis, the first motion device defines a moving axis, and there is a three-dimensional angle between the fixed axis and the moving axis; wherein when the first motion device and the second motion device are in the fixed state, the first motion device and the second motion device are fixed to each other to maintain the three-dimensional angle at a specific three-dimensional angle.

6. A fixing system as described in claim 1, wherein the first outer wall surface of the first motion device is a convex arc surface, the second inner wall surface of the second motion device is a concave arc surface, the first motion device contacts the second inner wall surface of the second motion device through the first outer wall surface, and when the first motion device and the second motion device are in the relatively movable state, the first motion device can move relative to the second inner wall surface of the second motion device through the first outer wall surface.

7. The fixing system according to claim 1, wherein the second movement device has a second inner tube diameter, and a lower half of the second inner tube diameter is gradually reduced from top to bottom.

8. The fixing system of claim 1, wherein the second motion device has a bottom inner diameter and the first motion device has an outer diameter, the bottom inner diameter being smaller than the outer diameter.

9. The fixing system as described in claim 1, wherein the fixing device has a third outer wall surface, and the third outer wall surface has an external threaded portion; wherein the second motion device has a second inner wall surface, and the second inner wall surface has an internal threaded portion; wherein the fixing device is connected to the internal threaded portion of the second motion device through the external threaded portion.

10. The fixing system as described in claim 1, wherein there is a gap between the first moving device and the second moving device, and the fixing device moves toward the gap relative to the second moving device and contacts the first moving device, thereby placing the first moving device and the second moving device in the fixed state.

11. The fixing system as described in claim 1, wherein there is a gap between the first moving device and the second moving device, and the fixing device moves relative to the second moving device in a direction away from the gap and separates from the first moving device, thereby placing the first moving device and the second moving device in the relatively movable state.

12. The fixing system of claim 1, wherein the fixing device has a first inner diameter, and a lower half of the first inner diameter tapers from bottom to top.

13. The fixing system according to claim 1, wherein the second motion device has a fixing portion fixed to an external device.

14. The fixation system of claim 1, further comprising an endoscope device, wherein the endoscope device is connected to the cannula device and the endoscope device at least partially extends into the cannula device.

15. The fixing system according to claim 14, wherein the endoscope device has a guide groove extending on the endoscope device, and the inner wall of the sleeve of the sleeve device has a guide protrusion, and the guide protrusion is at least partially accommodated in the guide groove. 16 . The fixing system according to claim 14 , wherein the endoscope device has a second connecting portion, the cannula device has a third connecting portion, and the endoscope device is connected to the third connecting portion of the cannula device through the second connecting portion.

17. The fixing system according to claim 1, further comprising a closed-cell device, wherein the closed-cell device is connected to the sleeve device and at least partially extends inside the sleeve device.

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