Optical three-dimensional laparoscope with photoelectric hybrid cable structure

Abstract

The invention discloses an optical three-dimensional laparoscope with a photoelectric hybrid cable structure, and relates to the technical field of laparoscops.The optical three-dimensional laparoscope comprises an outer tube, a lens and a shell, a magnetic attraction structure is arranged between the lens and the outer tube, two sets of positioning grooves are formed in the outer wall of the outer tube, and two sets of dismounting parts for fixing the positioning grooves are arranged on the outer wall of the shell; and a locking hole is formed in the operating rod, a locking mechanism for fixing the locking hole is installed on the outer wall of the arc-shaped box, the locking mechanism comprises two sets of locking blocks connected with the locking hole, and the magnetic attraction structure comprises an installation sleeve connected with the outer wall of the outer pipe in a magnetic attraction mode. The disassembly and assembly part achieves rapid disassembly and assembly of the shell and the outer tube, the magnetic attraction structure achieves rapid disassembly and assembly of the lens and the outer tube, the optical three-dimensional laparoscope replaces a traditional integrated structure, later maintenance and replacement are facilitated, the locking mechanism can reinforce the disassembly and assembly part, installation of the shell and the outer tube is reinforced, and the assembly and disassembly are convenient. And the use effect of the optical three-dimensional laparoscope is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of abdominal endoscopes, and particularly to an optical three-dimensional abdominal endoscope with an optical and electrical hybrid cable structure. Background Art

[0002] The optical three-dimensional abdominal endoscope is an advanced medical imaging device for real-time three-dimensional visualization in minimally invasive surgery. Through a high-resolution optical lens and three-dimensional imaging technology, it provides surgeons with a clearer and stereoscopic surgical field of view, significantly improving surgical precision and safety. This device is widely used in the fields of gastroenterology, urology, gynecology, etc., helping doctors more accurately identify tissue layers and lesion areas, reducing surgical risks, shortening recovery time, and is an important tool for minimally invasive surgery.

[0003] The existing optical three-dimensional abdominal endoscopes usually have an optical and electrical hybrid cable structure inside. To ensure the strength of the optical three-dimensional abdominal endoscope, most of the existing optical three-dimensional abdominal endoscopes are of an integrated structure. The integrated-structure optical three-dimensional abdominal endoscope is not convenient for disassembly and assembly. When the internal optical components are damaged, it is not convenient to repair or replace the damaged components, increasing the use cost of the optical three-dimensional abdominal endoscope. Therefore, according to the actual usage situation, we have improved the above-mentioned existing technology. Summary of the Invention

[0004] The purpose of the present invention is to provide an optical three-dimensional abdominal endoscope with an optical and electrical hybrid cable structure to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An optical three-dimensional abdominal endoscope with an optical and electrical hybrid cable structure, including an outer tube, a lens, and a housing. There are two middle tubes and one protection tube in the inner cavity of the outer tube, and an external housing is connected to the outer tube. Inner tubes are provided in both of the two middle tubes, a cable is connected inside the protection tube, a lens base is provided inside the housing, and a relay prism is connected to the lens base. An optical fiber bundle is also connected to the housing. A magnetic attraction structure is provided between the lens and the outer tube. Two positioning grooves are opened on the outer wall of the outer tube near one end of the housing, and a disassembly and assembly component for fixing the positioning grooves is provided on the outer wall of the housing;

[0006] The disassembly and assembly component includes an arc-shaped box fixedly connected to the outer wall of the housing. An operating rod passing through the outer wall of the arc-shaped box is slidably connected inside the arc-shaped box. A positioning block adapted to the positioning groove is installed on the operating rod. A locking hole is opened on the operating rod, and a locking mechanism for fixing the locking hole is installed on the outer wall of the arc-shaped box;

[0007] The locking mechanism includes a U-shaped frame fixedly installed on the outer wall of the arc-shaped box. A limiting rod is connected to the inner wall of the U-shaped frame. Two sliding members are slidably connected to the limiting rod, and locking blocks for fixing the locking hole are provided on both of the two sliding members;

[0008] The magnetic attraction structure includes a mounting sleeve fixedly connected to the outer wall of the lens, and the mounting sleeve is magnetically connected to the outer wall of the outer tube.

[0009] Preferably, the disassembly and assembly component further includes a sliding plate fixedly connected to the outer wall of the operating rod, and the sliding plate is slidably connected to the inner cavity of the arc-shaped box. A spring is sleeved on the outer wall of the operating rod, and the spring is located between the outer side of the sliding plate and the inner wall of the arc-shaped box.

[0010] Preferably, the locking mechanism further includes a handwheel located on the outer wall of the U-shaped frame, and a bidirectional lead screw is connected to the handwheel. The other end of the bidirectional lead screw is rotatably connected to the inner wall of the U-shaped frame through a bearing. The opening end of the U-shaped frame faces the operating rod. Two sets of threaded blocks are threadedly connected to the bidirectional lead screw, and the side walls of the two sets of threaded blocks are respectively fixedly connected to the two sets of sliding members.

[0011] Preferably, the magnetic attraction structure further includes a magnet member installed on the inner wall of the mounting sleeve. Two sets of attracting members magnetically connected to the magnet member are provided on the outer wall of the outer tube. The inner diameter of the mounting sleeve is equal to the diameter of the outer tube.

[0012] Preferably, a lighting port for connecting a cable is provided on the lens. A left light path through hole and a right light path through hole are also opened on the lens, and the left light path through hole and the right light path through hole are respectively connected to the two sets of inner tubes.

[0013] Preferably, a sealing cover is installed between the image rotation prism and the lens base, and the sealing cover is connected to the lens base by adhesive. Two exit discs are provided on the image rotation prism, and lens films are installed on the inner walls of the left light path through hole and the right light path through hole.

[0014] Preferably, a pull ring is installed at one end of the operating rod away from the positioning block, and an anti-slip rubber sleeve is sleeved on the hand-held end of the pull ring. An anti-slip pad is provided on the outer wall of the positioning block, and protrusions distributed in a staggered manner are embedded in the inner wall of the positioning groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The optical three-dimensional abdominal endoscope of the present invention is equipped with an optoelectronic hybrid cable. The imaging effects of the two groups of exit disks on the image-rotating prism are good, and the imaging is consistent and clear. By pulling the operating rod in the arc-shaped box of the disassembly and assembly component, the slide plate can be driven to move. With the elasticity of the spring, the positioning block can be connected to or disengaged from the positioning groove opened on the outer tube, realizing the quick disassembly and assembly of the outer tube and the housing. There is an attractive force between the magnet piece on the inner wall of the mounting sleeve and the attracting piece of the magnetic attraction structure, realizing the quick disassembly and assembly of the mounting sleeve, the lens and the outer tube. The optical three-dimensional abdominal endoscope can be easily disassembled and assembled, replacing the traditional integral structure, facilitating later maintenance and replacement. By rotating the handwheel of the locking mechanism, the bidirectional lead screw can be driven to rotate. After the threaded block threadedly connected to the bidirectional lead screw is slidably limited by the limiting rod and the sliding member, the adjacent locking blocks can move in opposite or opposite directions. When the housing and the outer tube are installed, the two groups of locking blocks are fixed in the locking holes opened on the operating rod, realizing the fixation of the position of the operating rod, preventing the operating rod from slipping out, further strengthening the installation of the housing and the outer tube, and improving the use effect of the optical three-dimensional abdominal endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a schematic structural diagram of the connection between the outer tube and the lens of the present invention;

[0019] Figure 3 is a schematic cross-sectional view of the front connection structure of the outer tube, the lens and the magnetic attraction structure of the present invention;

[0020] Figure 4 is a schematic structural diagram of the connection between the outer tube and the housing of the present invention;

[0021] Figure 5 is a schematic cross-sectional view of the side connection structure between the outer tube and the disassembly and assembly component of the present invention;

[0022] Figure 6 of the present invention Figure 4 is an enlarged schematic structural diagram at A in

[0023] In the figure: 1. Outer tube; 101. External housing; 2. Lens; 3. Magnetic attraction structure; 300. Mounting sleeve; 301. Magnet component; 302. Attraction component; 4. Housing; 5. Lighting port; 6. Left optical path through hole; 7. Right optical path through hole; 8. Lens film; 9. Disassembly and assembly component; 900. Arc-shaped box; 901. Operating rod; 902. Spring; 903. Slide plate; 904. Positioning block; 10. Lens holder; 11. Image rotation prism; 12. Sealing cover; 13. Optical fiber bundle; 14. Middle tube; 15. Inner tube; 16. Protection tube; 17. Cable; 18. Positioning groove; 19. Locking hole; 20. U-shaped frame; 21. Handwheel; 22. Bi-directional lead screw; 23. Threaded block; 24. Limit rod; 25. Sliding component; 26. Locking block. Detailed implementation mode

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1:

[0026] Please refer to Figures 1-6 , the present invention provides a technical solution: an optical three-dimensional abdominal cavity endoscope with an optoelectronic hybrid cable structure, including an outer tube 1, a lens 2 and a housing 4. There are two middle tubes 14 and one protection tube 16 in the inner cavity of the outer tube 1, and an external housing 101 is connected to the outer tube 1. Inner tubes 15 are arranged in both of the two middle tubes 14, a cable 17 is connected in the protection tube 16, a lens holder 10 is arranged in the housing 4, and an image rotation prism 11 is connected to the lens holder 10. An optical fiber bundle 13 is also connected to the housing 4. A magnetic attraction structure 3 is arranged between the lens 2 and the outer tube 1. Two positioning grooves 18 are formed on the outer wall of one end of the outer tube 1 close to the housing 4, and a disassembly and assembly component 9 for fixing the positioning grooves 18 is arranged on the outer wall of the housing 4; the left optical path device and the right optical path device are respectively arranged in two inner tubes 15 (one optical path device is arranged in one inner tube 15), and both optical path devices are provided with imaging components, image transmission components and spacer rings. The optical path device can adopt a well-known structure in the prior art, such as the corresponding structure disclosed in the utility model patent with the patent number 201721646161.3, or the structure disclosed in the invention patent application with the application publication number CN105301757A;

[0027] Disassembly and assembly component 9, including an arc-shaped box 900 fixedly connected to the outer wall of the outer shell 4, and an operating rod 901 slidably connected inside the arc-shaped box 900 and penetrating through the outer wall of the arc-shaped box 900. A positioning block 904 adapted to the positioning groove 18 is installed on the operating rod 901. A locking hole 19 is formed in the operating rod 901, and a locking mechanism for fixing the locking hole 19 is installed on the outer wall of the arc-shaped box 900; both groups of arc-shaped boxes 900 are fixedly connected to the outer wall of the outer shell 4, and the operating rod 901 and the positioning block 904 are fixedly connected. By sliding the operating rod 901, the positioning block 904 can be driven to move, and the moving block 904 can be connected to or disengaged from the locking hole 19. When the moving block 904 disengages from the positioning groove 18, the outer shell 4 can be disassembled from the outer tube 1. After the moving block 904 is connected to the positioning groove 18, the installation of the outer tube 1 and the outer shell 4 is completed;

[0028] The locking mechanism includes a U-shaped frame 20 fixedly installed on the outer wall of the arc-shaped box 900, and a limiting rod 24 is connected to the inner wall of the U-shaped frame 20. Two sliding members 25 are slidably connected to the limiting rod 24, and locking blocks 26 for fixing the locking hole 19 are provided on both groups of sliding members 25; the U-shaped frame 20 is fixedly connected to the outer wall of the arc-shaped box 900, and the sliding member 25 and the locking block 26 are fixedly connected. Adjacent locking blocks 26 can move in opposite or reverse directions. After the outer shell 4 and the outer tube 1 are installed, the two locking blocks 26 are fixed in the locking hole 19 formed in the operating rod 901, realizing the fixation of the position of the operating rod 901 and preventing the operating rod 901 from sliding out, further strengthening the installation of the outer shell 4 and the outer tube 1. On the contrary, when the outer shell 4 and the outer tube 1 are disassembled, after the locking blocks 26 disengage from the locking hole 19, the operating rod 901 can be pulled, and at this time the positioning block 904 can disengage from the positioning groove 18, and the outer shell 4 can be separated from the outer tube 1.

[0029] The magnetic attraction structure 3 includes an installation sleeve 300 fixedly connected to the outer wall of the lens 2, and the installation sleeve 300 is magnetically connected to the outer wall of the outer tube 1; the installation sleeve 300 is fixedly connected to the lens 2, and through the magnetic attraction connection between the installation sleeve 300 and the outer tube 1, the quick disassembly and assembly of the lens 2 are realized.

[0030] Among them, the disassembly and assembly component 9 further includes a sliding plate 903, the sliding plate 903 is fixedly connected to the outer wall of the operating rod 901, and the sliding plate 903 is slidably connected to the inner cavity of the arc-shaped box 900. A spring 902 is sleeved on the outer wall of the operating rod 901, and the spring 902 is located between the outer side of the sliding plate 903 and the inner wall of the arc-shaped box 900;

[0031] The operating rod 901 and the slide plate 903 are fixedly connected. Before the disassembling component 9 fixes the positioning groove 18, the operating rod 901 is pulled outward to drive the slide plate 903 to move outward. At this time, the spring 902 is in a compressed state, and the positioning block 904 is received in the inner cavity of the arc box 900. Then, the outer shell 4 is connected to the outer tube 1 so that the two groups of positioning grooves 18 opened on the outer tube 1 are aligned with the two groups of positioning blocks 904 respectively. Then, the operating rod 901 is released, and the compressed spring 902 can automatically return to its original position, and the slide plate 903 and the positioning block 904 move toward the outer wall of the outer tube 1 until the positioning block 904 is installed in the positioning groove 18, that is, the installation of the outer shell 4 and the outer tube 1 is completed. When disassembling, the operating rod 901 is pulled outward to disengage the positioning block 904 from the positioning groove 18.

[0032] The locking mechanism also includes a hand wheel 21, which is located on the outer wall of the U-shaped frame 20, and a bidirectional screw rod 22 is connected to the hand wheel 21, and the other end of the bidirectional screw rod 22 is rotatably connected to the inner wall of the U-shaped frame 20 through a bearing, and the open end of the U-shaped frame 20 is directly opposite to the operating rod 901, and two groups of thread blocks 23 are threadedly connected to the bidirectional screw rod 22, and the side walls of the two groups of thread blocks 23 are respectively fixedly connected to the two groups of sliding members 25;

[0033] When the shell 4 and the outer tube 1 are installed, that is, the positioning block 904 is fixed in the positioning groove 18, the hand wheel 21 is turned, and the hand wheel 21 drives the bidirectional screw rod 22 to rotate. After the two groups of threaded blocks 23 threadedly connected to the bidirectional screw rod 22 are limited by the sliding of the limit rod 24 and the sliding member 25, the adjacent locking blocks 26 can move in relative or opposite directions. When the shell 4 and the outer tube 1 are installed, the two groups of locking blocks 26 can be fixed in the locking holes 19 opened on the operating rod 901, so as to fix the position of the operating rod 901 and prevent the operating rod 901 from slipping out, further strengthening the installation of the shell 4 and the outer tube 1. When the shell 4 needs to be disassembled from the outer tube 1, the hand wheel 21 is reversed to move the two groups of locking blocks 26 in opposite directions to disengage them from the locking holes 19. At this time, the operating rod 901 can be pulled outward.

[0034] The magnetic attraction structure 3 also includes a magnet 301 installed on the inner wall of the mounting sleeve 300. The outer wall of the outer tube 1 is provided with two groups of suction members 302 which are magnetically connected to the magnet 301. The inner diameter of the mounting sleeve 300 is equal to the diameter of the outer tube 1. The suction member 302 is fixedly connected to the outer wall of the outer tube 1, and the mounting sleeve 300 is fixedly connected to the magnet 301. There is a suction force between the magnet 301 and the suction member 302, which realizes the rapid disassembly and assembly of the mounting sleeve 300, the lens 2 and the outer tube 1, and the optical three-dimensional laparoscopic endoscope can be easily disassembled and assembled.

[0035] The lens 2 is provided with an illumination port 5 for connecting the cable 17 , and the lens 2 is also provided with a left optical path through hole 6 and a right optical path through hole 7 , which are respectively connected to the two groups of inner tubes 15 ; the illumination port 5 can provide illumination.

[0036] A sealing cover 12 is installed between the image transfer prism 11 and the lens base 10, and the sealing cover 12 is connected to the lens base 10 by adhesive. Two output discs are provided on the image transfer prism 11, and the inner walls of the left optical path through hole 6 and the right optical path through hole 7 are both installed with a lens film 8; the sealing cover 12 reinforces the position of the image transfer prism 11, and the lens film 8 plays a protective role to prevent the left optical path through hole 6 and the right optical path through hole 7 from being damaged.

[0037] Embodiment 2:

[0038] Reference Figure 5 and Figure 6 This embodiment is different from the first embodiment in that a pull ring is installed at the end of the operating rod 901 away from the positioning block 904, and the hand-held end of the pull ring is covered with an anti-skid rubber sleeve, the outer wall of the positioning block 904 is provided with an anti-skid pad, and the inner wall of the positioning groove 18 is embedded with staggered protrusions; the pull ring facilitates the pulling of the operating rod 901, the anti-skid rubber sleeve plays an anti-skid role, and prevents the hand from slipping when holding the pull ring, and the anti-skid pad and the staggered protrusions increase the friction between the two, further improving the stability of the installation of the shell 4 and the outer tube 1.

[0039] Working principle: When using the present invention, first, the lens 2 is installed on the front end of the outer tube 1, and the magnet 301 on the inner wall of the installation sleeve 300 on the magnetic attraction structure 3 and the attraction member 302 on the outer tube 1 have an attraction force, so that the lens 2 and the outer tube 1 are connected by magnetic attraction. Before the disassembly component 9 is fixed to the positioning groove 18, the operating rod 901 is pulled outward to drive the slide plate 903 to move outward. At this time, the spring 902 is in a compressed state, and the positioning block 904 is stored in the inner cavity of the arc box 900. Then, the outer shell 4 is connected to the outer tube 1, so that the outer tube 1 is opened. The two groups of positioning grooves 18 are aligned with the two groups of positioning blocks 904 respectively, and then the operating rod 901 is released, the compressed spring 902 can automatically return to its original position, and the slide plate 903 and the positioning block 904 move toward the outer wall of the outer tube 1 until the positioning block 904 is installed in the positioning groove 18, that is, the installation of the outer shell 4 and the outer tube 1 is completed. When disassembling, the operating rod 901 is pulled outward to disengage the positioning block 904 from the positioning groove 18. The optical three-dimensional laparoscopic endoscope can be easily disassembled and assembled, replacing the traditional integrated structure, which is convenient for later maintenance and replacement;

[0040] After the housing 4 is installed with the outer tube 1, that is, the positioning block 904 is fixed in the positioning groove 18, rotate the handwheel 21. The handwheel 21 drives the double-threaded screw rod 22 to rotate. After the two groups of threaded blocks 23 threadedly connected to the double-threaded screw rod 22 are slidably limited by the limiting rod 24 and the sliding member 25, the adjacent locking blocks 26 can move in opposite or reverse directions. After the housing 4 is installed with the outer tube 1, the two groups of locking blocks 26 can be fixed in the locking holes 19 formed in the operating rod 901, realizing the fixation of the position of the operating rod 901, preventing the operating rod 901 from sliding out, and further strengthening the installation of the housing 4 and the outer tube 1. When the housing 4 needs to be disassembled from the outer tube 1, reverse the handwheel 21 to make the two groups of locking blocks 26 move in opposite directions to disengage from the locking holes 19. At this time, the operating rod 901 can be pulled outwards, which is simple and convenient to operate and convenient to use.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical three-dimensional abdominal endoscope with an optoelectronic hybrid cable structure, comprising an outer tube (1), a lens (2) and a housing (4), characterized in that: The inner cavity of the outer tube (1) is provided with two groups of middle tubes (14) and one group of protection tubes (16), and an external shell (101) is connected to the outer tube (1). Inner tubes (15) are arranged in both of the two groups of middle tubes (14). A cable (17) is connected inside the protection tube (16). A lens holder (10) is arranged inside the shell (4), and an image rotation prism (11) is connected to the lens holder (10). An optical fiber bundle (13) is also connected to the shell (4). A magnetic attraction structure (3) is arranged between the lens (2) and the outer tube (1). Two positioning grooves (18) are formed in the outer wall of one end of the outer tube (1) close to the shell (4), and two disassembly and assembly components (9) for fixing the positioning grooves (18) are arranged on the outer wall of the shell (4); The disassembly and assembly component (9) includes an arc-shaped box (900) fixedly connected to the outer wall of the shell (4), and an operating rod (901) passing through the outer wall of the arc-shaped box (900) is slidably connected inside the arc-shaped box (900). A positioning block (904) adapted to the positioning groove (18) is installed on the operating rod (901). A locking hole (19) is formed in the operating rod (901), and a locking mechanism for fixing the locking hole (19) is installed on the outer wall of the arc-shaped box (900); The locking mechanism includes a U-shaped frame (20) fixedly installed on the outer wall of the arc-shaped box (900), and a limiting rod (24) is connected to the inner wall of the U-shaped frame (20). Two sliding members (25) are slidably connected to the limiting rod (24), and locking blocks (26) for fixing the locking hole (19) are arranged on both of the two sliding members (25); The magnetic attraction structure (3) includes a mounting sleeve (300) fixedly connected to the outer wall of the lens (2), and the mounting sleeve (300) is magnetically connected to the outer wall of the outer tube (1).

2. The optical three-dimensional abdominal endoscope with an optoelectronic hybrid cable structure according to claim 1, wherein: The disassembly and assembly component (9) further includes a sliding plate (903). The sliding plate (903) is fixedly connected to the outer wall of the operating rod (901), and the sliding plate (903) is slidably connected to the inner cavity of the arc-shaped box (900). A spring (902) is sleeved on the outer wall of the operating rod (901), and the spring (902) is located between the outer side of the sliding plate (903) and the inner wall of the arc-shaped box (900).

3. The optical three-dimensional abdominal endoscope with an optoelectronic hybrid cable structure according to claim 1, characterized in that: The locking mechanism further includes a handwheel (21). The handwheel (21) is located on the outer wall of the U-shaped frame (20), and a bidirectional lead screw (22) is connected to the handwheel (21). The other end of the bidirectional lead screw (22) is rotatably connected to the inner wall of the U-shaped frame (20) through a bearing.

4. The optical three-dimensional laparoscope with an optoelectronic hybrid cable structure according to claim 3, wherein: The opening end of the U-shaped frame (20) faces the operating rod (901). Two threaded blocks (23) are threadedly connected to the bidirectional lead screw (22), and the side walls of the two threaded blocks (23) are respectively fixedly connected to the two sliding members (25).

5. The optical three-dimensional abdominal endoscope with an optoelectronic hybrid cable structure according to claim 1, wherein: The magnetic attraction structure (3) further includes a magnet component (301) installed on the inner wall of the mounting sleeve (300). Two attracting components (302) magnetically connected to the magnet component (301) are arranged on the outer wall of the outer tube (1). The inner diameter of the mounting sleeve (300) is equal to the diameter of the outer tube (1).

6. The optical three-dimensional abdominal endoscope with an optoelectronic hybrid cable structure according to claim 1, wherein: The lens (2) is provided with an illumination port (5) for connecting a cable (17). The lens (2) is further provided with a left optical path through hole (6) and a right optical path through hole (7), and the left optical path through hole (6) and the right optical path through hole (7) are respectively connected to two groups of inner tubes (15).

7. The optical three-dimensional abdominal endoscope with an optoelectronic hybrid cable structure according to claim 1, characterized in that: A sealing cover (12) is installed between the image rotation prism (11) and the lens holder (10), and the sealing cover (12) is connected to the lens holder (10) by adhesive. Two exit discs are provided on the image rotation prism (11). Lens films (8) are installed on the inner walls of the left optical path through hole (6) and the right optical path through hole (7).

8. The optical three-dimensional abdominal endoscope with an optoelectronic hybrid cable structure according to claim 1, characterized in that: A pull ring is installed at one end of the operating rod (901) away from the positioning block (904), and an anti-slip rubber sleeve is sleeved on the hand-held end of the pull ring. An anti-slip pad is provided on the outer wall of the positioning block (904). Protrusions distributed in a staggered manner are embedded on the inner wall of the positioning groove (18).

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