Endoscope insertion part and endoscope anti-drop mechanism

Abstract

The present invention relates to the technical field of endoscopes, and in particular to an endoscope insertion part and an endoscope anti-drop mechanism. Its technical solution includes: an insertion tube assembly, including an insertion hose, an air guide tube, a support air bag and a keel tube, the end of the insertion hose is fixedly connected to the endoscope body, a plurality of keel tubes are arranged inside the insertion hose, the inner wall of the insertion hose is fixedly installed with an air guide tube, the air guide tube is connected to a plurality of support air bags, and the plurality of support air bags are linearly and equidistantly distributed along the air guide tube, and the end of each support air bag contacts the keel tube. In the present invention, the peristalsis of the human intestine drives the insertion hose to move to avoid friction, and the slider slides on the keel tube. The movement of the insertion hose does not affect the position of the keel tube, so as to avoid the displacement of the keel tube causing the position of the observation assembly to change. During the observation process, medical staff adjust the direction of the observation assembly many times, which affects the observation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to an endoscope insertion portion and an endoscope anti-drop mechanism. Background Art

[0002] The endoscope insertion part is an important part of the endoscope. It usually consists of a slender tube and a camera at the top. The endoscope insertion part is inserted into the body through the body's natural cavity or surgical incision to observe and diagnose the condition of internal organs and tissues. The endoscope insertion part is usually designed with soft materials to reduce the risk of damage to human tissues.

[0003] Application No. 202210750366.5 proposes an endoscope traction wire protection device and an endoscope having the same. The endoscope is provided with a protective tube, which can effectively prevent the traction wires from being entangled with each other due to the axial rotation of the endoscope, and realize the up and down and left and right bending of the endoscope, which is convenient for endoscopic inspection.

[0004] However, when this type of endoscope is in use, the patient's intestinal peristalsis will drive the hose of the endoscope insertion part, causing the hose to bend and the endoscope inspection position to shift, requiring the camera position to be adjusted again. Summary of the invention

[0005] The purpose of the present invention is to address the problem of intestinal peristalsis camera deviation in the background technology, and to propose an endoscope insertion part and an endoscope anti-drop mechanism.

[0006] The technical solution of the present invention is: an endoscope insertion part and an endoscope anti-drop mechanism, comprising: an endoscope body, the front of the endoscope body is rotatably connected to a direction adjustment knob, the left side of the endoscope body is fixedly installed with a light guide rod, and the right side of the endoscope body is fixedly installed with an inflation tube;

[0007] The insertion tube assembly includes an insertion hose, an air guide tube, a support air bag and a keel tube, wherein the end of the insertion hose is fixedly connected to the endoscope body, a plurality of keel tubes are arranged inside the insertion hose, the air guide tube is fixedly installed on the inner wall of the insertion hose, the air guide tube is connected to a plurality of support air bags, the plurality of support air bags are equidistantly distributed in a straight line along the air guide tube, and the end of each support air bag contacts the keel tube;

[0008] The observation assembly includes a camera, a mobile airbag and a wire, wherein the camera is fixedly mounted on the end of the wire, the camera extends from the end of the insertion hose, the mobile airbag is fixedly mounted on the end of the camera, and the air guide tube is fixedly mounted on the end of the mobile airbag;

[0009] A through hole is provided at the center of the keel tube, the wire passes through the through hole and the center of the movable airbag, the end of the movable airbag is fixedly connected to the keel tube, the air guide tube is connected to the inflation tube, the direction adjustment knob is electrically connected to the keel tube, and an isolation component is provided at the end of the insertion hose.

[0010] Optionally, a strip groove is provided on the keel tube, and the strip groove is parallel to the air guiding tube. A slider is slidably connected in the strip groove on the keel tube, and the air guiding tube and the supporting airbag both pass through the slider. The side of the slider away from the keel tube is fixedly connected to the insertion hose.

[0011] Optionally, the support airbag and the air guiding tube are parallel to each other, the support airbag is placed in the strip groove on the keel tube, the support airbag and the keel tube are connected by a pipe, the support airbag, keel tube and the pipe form an I-shape, and the pipe is placed inside the slider.

[0012] Optionally, the isolation assembly includes a support tube, a silicone rubber sheet, a turntable, a gathering groove, a cylindrical block and a displacement piece, wherein one end of the support tube is fixedly connected to the insertion hose, the other end of the support tube is slidably connected to the silicone rubber sheet, the inner wall of the support tube is rotatably connected to the turntable, a gathering groove is provided on the turntable, a cylindrical block is fixedly installed on the side of the silicone rubber sheet close to the turntable, the cylindrical block slides in the gathering groove, and the displacement piece is fixedly installed on the top of the keel tube.

[0013] Optionally, multiple silicone rubber sheets are provided and distributed at equal angles in a circular shape at the end of the support tube. The silicone rubber sheet adopts an arc structure, and multiple silicone rubber sheets form a hemispherical structure. Multiple silicone rubber sheets wrap the camera, and a telescopic tube is fixedly installed at the connection between the insertion hose and the support tube.

[0014] Optionally, there is an angle between the gathering groove and the diameter of the turntable, a plurality of the gathering grooves are provided and are distributed on the turntable in a circular shape with equal angles, a directional groove is provided at the end of the support tube, and the silicone rubber sheet slides in the directional groove.

[0015] Optionally, the displacement member includes a sleeve, a fixing plate, a pressure airbag, a first extrusion block and a second extrusion block. The sleeve is fixedly mounted on the inner wall of the support tube through the fixing plate. The pressure airbag is fixedly mounted on the bottom of the fixing plate. The pressure airbag is connected to the air guide tube. The first extrusion block is fixedly mounted on the end of the pressure airbag, and the first extrusion block is in contact with the second extrusion block.

[0016] Optionally, both the first extrusion block and the second extrusion block adopt a wedge-shaped structure, an inclined groove is provided on the inclined surface of the second extrusion block, a round rod is slidably connected to the inclined groove inside the second extrusion block, and the first extrusion block is fixedly installed in the middle of the round rod.

[0017] Optionally, the observation assembly further includes a circular ring plate and a telescopic tube, the circular ring plate and the telescopic tube are fixedly mounted on the end of the camera, the end of the telescopic tube is slidably connected to the sleeve, and the camera slides up and down in the silicone rubber sheet.

[0018] Optionally, the guide wire passes through the center of the telescopic cylinder, the telescopic cylinder passes through the center of the guide wire, and the guide wire extends into the human intestine.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] The present invention enables the support airbag to expand and press against the keel tube when the insertion hose is inserted into the human body, so that the insertion hose and the keel tube are integrated, and the insertion hose and the keel tube are inserted into the human body synchronously; when the observation component is inserted to the observation position, the support airbag contracts and separates from the keel tube, and the peristalsis of the human intestine drives the insertion hose to move to avoid friction, and the slider slides on the keel tube. The movement of the insertion hose does not affect the position of the keel tube, thereby avoiding the displacement of the keel tube to change the position of the observation component. During the observation process, medical staff adjust the direction of the observation component many times, which affects the observation efficiency.

[0021] Furthermore, the observation component is wrapped with a silicone rubber sheet to isolate the warm water vapor in the human body from the cold observation component. During the process of inserting the observation component into the human body, the silicone rubber sheet isolates the water vapor but not the temperature. When the observation component is inserted into the observation position, the observation component is heated by the human body temperature. At this time, air is ventilated into the pressure airbag to expand it. The pressure airbag pushes the first extrusion block, thereby moving the second extrusion block and the turntable, so that the silicone rubber sheet opens to leak the observation component for observation.

[0022] Furthermore, since the camera is blocked inside the support tube, after the silicone rubber sheet is opened, gas is introduced into the mobile airbag to expand, and the mobile airbag pushes the camera so that the camera is completely extended from the support tube, thereby increasing the observation range of the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the overall structure of an embodiment of the present invention is provided;

[0024] Figure 2 A schematic diagram of the support tube structure of an embodiment of the present invention is given;

[0025] Figure 3 A schematic cross-sectional view of an insertion hose structure according to an embodiment of the present invention is provided;

[0026] Figure 4 A schematic front and cross-sectional view of an insertion hose structure according to an embodiment of the present invention is provided;

[0027] Figure 5A schematic diagram of the camera structure of an embodiment of the present invention is given;

[0028] Figure 6 A schematic diagram of the structure of a turntable according to an embodiment of the present invention is provided;

[0029] Figure 7 for Figure 6 A part of the cylindrical block structure enlarged schematic diagram;

[0030] Figure 8 It is a schematic diagram of the structure of a silicone rubber sheet;

[0031] Fig. 9 It is a schematic cross-sectional view of the second extrusion block structure.

[0032] Figure numerals: 1. endoscope body; 2. direction adjustment knob; 3. light guide rod; 4. inflation tube; 5. insertion tube assembly; 51. insertion hose; 52. gas guide tube; 53. support airbag; 54. keel tube; 55. strip groove; 56. slider; 57. perforation; 6. isolation assembly; 61. support tube; 62. directional slide groove; 63. silicone rubber sheet; 64. turntable; 65. gathering groove; 66. cylindrical block; 67. sleeve; 68. fixing plate; 69. pressure airbag; 610. first extrusion block; 611. second extrusion block; 612. inclined groove; 613. round rod; 7. observation assembly; 71. camera; 72. circular ring plate; 73. movable airbag; 74. guide wire; 75. telescopic cylinder. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0034] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0035] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Example 1

[0039] This embodiment provides an endoscope insertion portion and an endoscope anti-drop mechanism, such as Figure 1 As shown, it includes an endoscope body 1, the front of the endoscope body 1 is rotatably connected to a direction adjustment knob 2, the left side of the endoscope body 1 is fixedly installed with a light guide rod 3, the light guide rod 3 provides a light source for the endoscope to illuminate the inside of the human body for observation, and the right side of the endoscope body 1 is fixedly installed with an inflation tube 4.

[0040] like Figure 1 As shown, an insertion tube assembly 5 is provided at the bottom of the endoscope body 1, and an observation assembly 7 is provided at the end of the insertion tube assembly 5. Figure 2 and 3 As shown, the insertion tube assembly 5 includes an insertion hose 51, an air guiding tube 52, a support airbag 53 and a keel tube 54. The end of the insertion hose 51 is fixedly connected to the endoscope body 1. A plurality of keel tubes 54 are arranged inside the insertion hose 51. The air guiding tube 52 is fixedly installed on the inner wall of the insertion hose 51. The air guiding tube 52 is connected to a plurality of support airbags 53. The plurality of support airbags 53 are equidistantly distributed in a straight line along the air guiding tube 52, and the end of each support airbag 53 contacts the keel tube 54.

[0041] like Figure 3 and 4 As shown, a strip groove 55 is opened on the keel tube 54, and a slider 56 is slidably connected in the strip groove 55 on the keel tube 54. The air guide tube 52 and the supporting air bag 53 both pass through the slider 56, and the side of the slider 56 away from the keel tube 54 is fixedly connected to the insertion hose 51.

[0042] The gas guiding tube 52 is connected to the inflation tube 4, and gas is injected into the gas guiding tube 52 through the inflation tube 4 to expand the supporting airbag 53 so that the two ends of the supporting airbag 53 are against the keel tube 54. At this time, the supporting airbag 53 fixes the position of the slider 56 inside the keel tube 54, that is, fixes the position of the insertion hose 51. At this time, the insertion hose 51 and the keel tube 54 are a whole. When the insertion tube assembly 5 is inserted into the human intestine as a whole, the insertion hose 51 and the keel tube 54 move synchronously.

[0043] When the observation component 7 reaches the desired observation position in the human body, the gas in the gas guiding tube 52 and the supporting airbag 53 is extracted through the inflation tube 4, thereby the supporting airbag 53 contracts and is separated from the keel tube 54. At this time, the human intestine moves, driving the insertion hose 51 to move. In this process, since the supporting airbag 53 is separated from the keel tube 54, the insertion hose 51 moves, and the slider 56 inside the insertion hose 51 moves in the strip groove 55, and cannot drive the keel tube 54 to move, thereby positioning the observation component 7 to avoid changes in the position of the observation component 7 due to peristalsis of the human intestine, requiring medical staff to adjust the position of the observation component 7 again.

[0044] like Figure 5 As shown, the strip groove 55 and the gas guiding tube 52 are parallel to each other, and the supporting airbag 53 and the gas guiding tube 52 are parallel to each other. The slider 56 slides in the strip groove 55, so that the supporting airbag 53 is always placed in the strip groove 55 on the keel tube 54. The supporting airbag 53 and the keel tube 54 are connected by a pipe, and the supporting airbag 53, the keel tube 54 and the pipe form an I-shape. The pipe is placed inside the slider 56, and the slider 56 protects the inserted hose 51 from being pressed through a bend and unable to transport gas.

[0045] The direction adjustment knob 2 is electrically connected to the keel tube 54. The direction of the keel tube 54 is changed by rotating the direction adjustment knob 2. The keel tube 54 drives the insertion hose 51 to change its angle, thereby changing the direction of the observation component 7 to observe the inside of the human body.

[0046] In this embodiment, when the insertion hose 51 is inserted into the human body, the inflation tube 4 transports gas to the support airbag 53 through the gas-guiding tube 52 to expand it, and the support airbag 53 rests on the keel tube 54, so that the insertion hose 51, the support airbag 53, the keel tube 54 and the slider 56 are integrated, and the insertion hose 51 and the keel tube 54 are inserted into the human body simultaneously. When the observation component 7 is inserted to the observation position, the inflation tube 4 extracts the internal gas of the support airbag 53 through the gas-guiding tube 52. At this time, the support airbag 53 contracts, and the support airbag 53 is separated from the keel tube 54. The peristalsis of the human intestine drives the insertion hose 51 to move, avoiding friction between the human intestine and the insertion hose 51, causing injury to the human intestine. At the same time, the movement of the insertion hose 51 does not affect the position of the keel tube 54, avoiding the displacement of the keel tube 54 to change the position of the observation component 7. During the observation process, the medical staff adjusted the direction of the observation component 7 many times, affecting the observation efficiency.

[0047] Example 2

[0048] Based on Example 1, this embodiment proposes an endoscope insertion portion and an endoscope anti-drop mechanism, such as Figure 6 and 7 As shown, the isolation component 6 includes a support tube 61, a silicone rubber sheet 63, a turntable 64, a gathering groove 65, a cylindrical block 66 and a shifting member. The end of the support tube 61 is fixedly connected to the insertion hose 51, and the other end of the support tube 61 is slidably connected to the silicone rubber sheet 63. The inner wall of the support tube 61 is rotatably connected to the turntable 64. The turntable 64 is provided with a gathering groove 65. A cylindrical block 66 is fixedly installed on the side of the silicone rubber sheet 63 close to the turntable 64, and the cylindrical block 66 slides in the gathering groove 65. The observation component 7 at the end of the insertion hose 51 is located inside the support tube 61.

[0049] like Figure 2 and 8 As shown, a plurality of silicone rubber sheets 63 are provided and are distributed at equal angles in a ring shape at the end of the support tube 61. The silicone rubber sheets 63 adopt an arc structure, and a plurality of silicone rubber sheets 63 form a hemispherical structure. A plurality of silicone rubber sheets 63 wrap the camera 71. When the hose 51 and the support tube 61 are inserted into the human intestine, the warm moisture in the human body is separated by the silicone rubber sheets 63 to prevent the hot moisture from contacting the cold observation component 7, causing the observation component 7 to form water mist, affecting human observation, and the silicone rubber sheets 63 isolate water vapor but not temperature. When the observation component 7 is inserted to the position to be observed, the temperature of the observation component 7 is close to that of the human body. At this time, the observation component 7 will not generate water mist when it contacts water vapor again.

[0050] like Figure 8As shown, a displacement member is fixedly installed on the top of the keel tube 54, and the displacement member includes a sleeve 67, a fixing plate 68, a pressure airbag 69, a first extrusion block 610, and a second extrusion block 611. The sleeve 67 is fixedly installed on the inner wall of the support tube 61 through the fixing plate 68, and the pressure airbag 69 is fixedly installed on the bottom of the fixing plate 68. The pressure airbag 69 is connected with the gas-guiding capillary 52, and the first extrusion block 610 is fixedly installed on the end of the pressure airbag 69, and the first extrusion block 610 is in contact with the second extrusion block 611. The support tube 61, the sleeve 67, and the fixing plate 68 are fixed together, and the gas-guiding capillary 52 delivers gas to the pressure airbag 69, so that the pressure airbag 69 expands, and the pressure airbag 69 pushes the first extrusion block 610 to squeeze the second extrusion block 611, and the second extrusion block 611 is squeezed to rotate the turntable 64.

[0051] When the observation assembly 7 is inserted into the position of the human body to be observed, the turntable 64 rotates so that the gathering groove 65 drives the cylindrical block 66 to move, thereby moving the cylindrical block 66 away from the support tube 61, so that the silicone rubber sheet 63 opens, thereby leaking the observation assembly 7. A telescopic tube is fixedly installed at the connection between the insertion hose 51 and the support tube 61. When the insertion hose 51 and the keel tube 54 are misaligned, the telescopic tube compensates for the misaligned part.

[0052] like Figure 7 As shown, there is an angle between the gathering groove 65 and the diameter of the rotating disk 64, a plurality of gathering grooves 65 are provided, and the gathering grooves 65 are distributed at equal angles in a ring shape on the rotating disk 64, and a directional slide groove 62 is provided at the end of the support tube 61, and the silicone rubber sheet 63 slides at the directional slide groove 62. When the rotating disk 64 is prevented from rotating, the gathering groove 65 is driven to move by the cylindrical block 66, and the gathering groove 65 rotates, that is, the silicone rubber sheet 63 rotates.

[0053] like Fig. 9 As shown, the first extrusion block 610 and the second extrusion block 611 both adopt a wedge-shaped structure, and an inclined groove 612 is provided at the inclined surface of the second extrusion block 611. A round rod 613 is slidably connected to the inclined groove 612 inside the second extrusion block 611, and the middle of the round rod 613 is fixedly installed with the first extrusion block 610. When the first extrusion block 610 moves downward, the second extrusion block 611 is pushed by its inclined surface and the round rod 613, and when the first extrusion block 610 moves upward, the second extrusion block 611 is reset by sliding the round rod 613 in the inclined groove 612, that is, the silicone rubber sheet 63 is reset.

[0054] In this embodiment, the observation component 7 is wrapped by a silicone rubber sheet 63 to isolate the warm water vapor in the human body from the cold observation component 7. During the process of inserting the observation component 7 into the human body, the silicone rubber sheet 63 isolates the water vapor but not the temperature. When the observation component 7 is inserted into the observation position, the observation component 7 is heated by the human body temperature. At this time, air is ventilated into the pressure airbag 69 to expand it. The pressure airbag 69 pushes the first extrusion block 610, thereby moving the second extrusion block 611 and the turntable 64, so that the silicone rubber sheet 63 opens to leak the observation component 7 for observation.

[0055] Example 3

[0056] Based on the above-mentioned embodiment 1 or 2, this embodiment proposes an endoscope insertion portion and an endoscope anti-drop mechanism, such as Figure 5 and 6 As shown, the observation component 7 includes a camera 71, a movable airbag 73 and a wire 74. The camera 71 is fixedly installed on the end of the wire 74. The camera 71 extends from the end of the insertion hose 51. The movable airbag 73 is fixedly installed on the end of the camera 71. The air guide tube 52 is fixedly installed on the end of the movable airbag 73. The wire 74 passes through the through hole 57 and the center of the movable airbag 73. The end of the movable airbag 73 is fixedly connected to the keel tube 54.

[0057] The condition inside the human body is observed through the camera 71. After the silicone rubber sheet 63 is opened, since the camera 71 is still located inside the support tube 61, the observation range of the camera 71 is blocked by the support tube 61. At this time, gas is introduced into the mobile airbag 73 to expand, and the mobile airbag 73 pushes the camera 71 to the outside of the support tube 61. The end of the camera 71 extends from the support tube 61 and is no longer blocked, thereby improving the observation range of the camera 71.

[0058] like Figure 8 As shown, the observation assembly 7 also includes a circular plate 72 and a telescopic tube 75. The circular plate 72 and the telescopic tube 75 are fixedly mounted at the end of the camera 71. The end of the telescopic tube 75 is slidably connected to the sleeve 67. The telescopic tube 75 prevents the camera 71 from rubbing against the sleeve 67. The camera 71 slides up and down in the silicone rubber sheet 63. The wire 74 passes through the center of the telescopic tube 75, and the telescopic tube 75 passes through the center of the wire 74. The wire 74 extends into the human intestine.

[0059] In this embodiment, since the camera 71 is located inside the support tube 61 and is blocked, after the silicone rubber sheet 63 is opened, gas is introduced into the mobile airbag 73 to expand, and the mobile airbag 73 pushes the camera 71 so that the camera 71 is completely extended from the support tube 61, thereby increasing the observation range of the camera 71.

[0060] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An endoscope insertion portion and an endoscope anti-drop mechanism, characterized in that: include: An endoscope body (1), wherein the front side of the endoscope body (1) is rotatably connected to a direction adjustment knob (2), a light guide rod (3) is fixedly mounted on the left side of the endoscope body (1), and an inflation tube (4) is fixedly mounted on the right side of the endoscope body (1); An insertion tube assembly (5), comprising an insertion hose (51), an air guiding tube (52), a support air bag (53) and a keel tube (54), wherein the end of the insertion hose (51) is fixedly connected to the endoscope body (1), a plurality of keel tubes (54) are arranged inside the insertion hose (51), the air guiding tube (52) is fixedly mounted on the inner wall of the insertion hose (51), the air guiding tube (52) is connected to a plurality of support air bags (53), the plurality of support air bags (53) are equidistantly distributed in a straight line along the air guiding tube (52), and the end of each support air bag (53) contacts the keel tube (54); An observation assembly (7) comprises a camera (71), a movable airbag (73) and a wire (74); the camera (71) is fixedly mounted on the end of the wire (74); the camera (71) extends from the end of the insertion hose (51); the movable airbag (73) is fixedly mounted on the end of the camera (71); and the air guide tube (52) is fixedly mounted on the end of the movable airbag (73); A through hole (57) is provided at the center of the keel tube (54); the conductive wire (74) passes through the through hole (57) and the center of the movable airbag (73); the end of the movable airbag (73) is fixedly connected to the keel tube (54); the air guide tube (52) is connected to the inflation tube (4); the direction adjustment knob (2) is electrically connected to the keel tube (54); and an isolation component (6) is provided at the end of the insertion hose (51).

2. The endoscope insertion portion and the endoscope anti-drop mechanism according to claim 1, characterized in that: The keel tube (54) is provided with a strip groove (55), the strip groove (55) and the gas guiding tube (52) are parallel to each other, a slider (56) is slidably connected in the strip groove (55) on the keel tube (54), the gas guiding tube (52) and the supporting air bag (53) both pass through the slider (56), and the side of the slider (56) away from the keel tube (54) is fixedly connected to the insertion hose (51).

3. The endoscope insertion portion and the endoscope anti-drop mechanism according to claim 2, characterized in that: The supporting airbag (53) and the air guiding tube (52) are parallel to each other; the supporting airbag (53) is placed at a strip-shaped groove (55) on the keel tube (54); the supporting airbag (53) and the keel tube (54) are connected via a pipe; the supporting airbag (53), the keel tube (54) and the pipe form an I-shape; the pipe is placed inside the slider (56).

4. The endoscope insertion portion and the endoscope anti-drop mechanism according to claim 1, characterized in that: The isolation assembly (6) comprises a support tube (61), a silicone rubber sheet (63), a rotating disk (64), a gathering groove (65), a cylindrical block (66) and a displacement piece. The end of the support tube (61) is fixedly connected to the insertion hose (51), the other end of the support tube (61) is slidably connected to the silicone rubber sheet (63), the inner wall of the support tube (61) is rotatably connected to the rotating disk (64), the rotating disk (64) is provided with a gathering groove (65), a cylindrical block (66) is fixedly installed on one side of the silicone rubber sheet (63) close to the rotating disk (64), the cylindrical block (66) slides in the gathering groove (65), and the displacement piece is fixedly installed on the top of the keel tube (54).

5. The endoscope insertion portion and the endoscope anti-drop mechanism according to claim 4, characterized in that: A plurality of the silicone rubber sheets (63) are provided and are distributed at equal angles in a ring shape at the end of the support tube (61); the silicone rubber sheet (63) has an arc-shaped structure; the plurality of the silicone rubber sheets (63) form a hemispherical structure; the plurality of the silicone rubber sheets (63) wrap the camera (71); and a telescopic tube is fixedly mounted at the connection between the insertion hose (51) and the support tube (61).

6. The endoscope insertion portion and the endoscope anti-drop mechanism according to claim 5, characterized in that: An angle is formed between the gathering groove (65) and the diameter of the rotating disk (64); a plurality of the gathering grooves (65) are provided and are distributed in an annular manner at equal angles on the rotating disk (64); a directional sliding groove (62) is formed at the end of the support tube (61); and the silicone rubber sheet (63) slides in the directional sliding groove (62).

7. The endoscope insertion portion and the endoscope anti-drop mechanism according to claim 6, characterized in that: The displacement member comprises a sleeve (67), a fixing plate (68), a pressure airbag (69), a first extrusion block (610) and a second extrusion block (611); the sleeve (67) is fixedly mounted on the inner wall of the support tube (61) via the fixing plate (68); the pressure airbag (69) is fixedly mounted on the bottom of the fixing plate (68); the pressure airbag (69) is connected to the air guide tube (52); the first extrusion block (610) is fixedly mounted on the end of the pressure airbag (69); the first extrusion block (610) is in contact with the second extrusion block (611).

8. The endoscope insertion portion and the endoscope anti-drop mechanism according to claim 7, characterized in that: The first extrusion block (610) and the second extrusion block (611) both adopt a wedge-shaped structure; an inclined groove (612) is provided on the inclined surface of the second extrusion block (611); a round rod (613) is slidably connected to the inclined groove (612) inside the second extrusion block (611); and the first extrusion block (610) is fixedly mounted at the middle of the round rod (613).

9. The endoscope insertion portion and the endoscope anti-drop mechanism according to claim 7, characterized in that: The observation assembly (7) further comprises a circular ring plate (72) and a telescopic cylinder (75); the circular ring plate (72) and the telescopic cylinder (75) are fixedly mounted at the end of the camera (71); the end of the telescopic cylinder (75) is slidably connected to the sleeve (67); and the camera (71) slides up and down in the silicone rubber sheet (63).

10. The endoscope insertion portion and the endoscope anti-drop mechanism according to claim 9, characterized in that: The guide wire (74) passes through the center of the telescopic cylinder (75), the telescopic cylinder (75) passes through the center of the guide wire (74), and the guide wire (74) extends into the intestine of the human body.

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