Electronic arthroscope with external structure

Abstract

The application discloses an electronic arthroscope with an external structure, and relates to the technical field of medical devices, which comprises an arthroscope main machine, a single-diameter tube with a built-in power supply signal transmission line is installed on the arthroscope main machine, a forceps channel tube body is slidably connected to the single-diameter tube, one end of the single-diameter tube is provided with a forceps channel external connection end, a device operation channel corresponding to the forceps channel tube body is arranged on a forceps channel end head, a locking mechanism and a reset mechanism for dismounting and mounting the forceps channel end head are respectively arranged on the forceps channel end head and the single-diameter tube, the locking mechanism comprises a clamping block movably connected in the forceps channel end head, the clamping block is rotatably connected to the forceps channel end head through a torsional spring shaft, a pawl end matched with a pawl groove is further arranged on the clamping block, and in use, the modular operation of the forceps channel is realized by adopting a separation design and an external slide rail connection mode, doctors can conveniently dismount and mount forceps channel tube bodies with different functions according to surgical requirements, the entire arthroscope does not need to be replaced, and the medical cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an electronic arthroscope with an external structure. BACKGROUND

[0002] As an important medical device for diagnosing and treating joint diseases, arthroscopy plays a key role in modern medicine.

[0003] It can be inserted into the joint cavity through a small incision, allowing doctors to directly observe the cartilage, synovial membrane, ligament, meniscus and other structures inside the joint, not only accurately diagnosing the type and degree of joint damage or disease, but also simultaneously performing surgical treatment such as meniscus repair, ligament reconstruction, synovial membrane cleaning, etc. With the advantages of minimal trauma, rapid recovery, and fewer complications, arthroscopy has been widely used in the diagnosis and treatment of diseases in the knee, shoulder, hip, ankle and other joints.

[0004] Currently, most of the mainstream arthroscopes on the market adopt a unified tube design, integrating the camera and instrument channel (forceps channel) into a single-diameter tube body. However, in actual clinical use, different tools (such as forceps, skiving knives, radiofrequency electrodes, etc.) are required for different surgical needs. The existing arthroscopes often have to purchase a completely new tube body when changing tools, which undoubtedly greatly increases the medical cost. In addition, to protect the internal image acquisition components (such as miniature cameras, optical fibers, etc.), the single-diameter tube is usually wrapped with an outer wall, which further expands the overall tube diameter to 2.5mm, to some extent, limiting the operational flexibility of arthroscopy in some narrow joint parts. SUMMARY

[0005] In view of the problems existing in the prior art, the present application is proposed.

[0006] Therefore, the purpose of the present application is to provide an electronic arthroscope with an external structure, which solves the problem that the current mainstream arthroscopes on the market adopt a unified tube design, integrating the camera and instrument channel into a single-diameter tube body, resulting in the need to purchase a completely new tube body when changing different functional surgical tools, greatly increasing the medical cost; and to protect the internal image acquisition components, the single-diameter tube is wrapped with an outer wall, which expands the overall tube diameter to 2.5mm, limiting the operational flexibility in narrow joint parts.

[0007] In order to achieve the above object, the present application provides the following technical scheme: An electronic arthroscope with an external structure, comprising an arthroscope main machine, a single-diameter tube with a built-in power supply signal transmission line is installed on the arthroscope main machine, a forceps channel tube body is slidably connected to the single-diameter tube, and a forceps channel external end for externally connecting a forceps channel end head is arranged at one end of the single-diameter tube away from the arthroscope main machine, the forceps channel end head is provided with an instrument operation channel corresponding to the forceps channel tube body, and the forceps channel end head and the single-diameter tube are respectively provided with a locking mechanism and a reset mechanism for dismounting and mounting the forceps channel end head;

[0008] The locking mechanism comprises a clamping block movably connected in the forceps channel end head, the clamping block is rotatably connected to the forceps channel end head through a torsional spring shaft, and the clamping block is further provided with a pawl end matched with a pawl slot;

[0009] The reset mechanism comprises a protective sleeve sleeved on one end of the single-diameter tube close to the forceps channel external end, a butt joint bolt is slidably connected in the protective sleeve, a spring is sleeved on the single-diameter tube in the protective sleeve, and one end of the butt joint bolt extending out of the protective sleeve is provided with a guide protruding strip corresponding to a guide slot.

[0010] As a preferred scheme of the electronic arthroscope with an external structure, the outer surface of the forceps channel external end is provided with two parallel first and second slide rails, the first and second slide rails extend along the axial direction of the single-diameter tube, the inner wall of the forceps channel end head is provided with a clamping slide block matched with the first slide rail corresponding to the first slide rail, the clamping slide block is provided with a protruding power contact, and the connection between the forceps channel external end and the single-diameter tube is provided with a clamping rotating groove in communication with the first slide rail, and the first slide rail is in communication with the second slide rail through the clamping rotating groove.

[0011] As a preferred scheme of the electronic arthroscope with an external structure, the first and second slide rails are inlaidly installed on the forceps channel external end, and the included angle between the first and second slide rails is ninety degrees, the forceps channel external end is further provided with a pawl slot corresponding to the second slide rail, and the pawl slot is linearly arranged along the axial direction of the single-diameter tube.

[0012] As a preferred scheme of the electronic arthroscope with an external structure, the forceps channel end head is fixedly installed with a sealing stop ring at one end away from the forceps channel external end, and the center part of the sealing stop ring is provided with an observation port corresponding to an image sensing module.

[0013] As a preferred scheme of the electronic arthroscope with the external structure, the single-diameter tube is provided with an image sensing module and an LED module connected with a power signal transmission line at one end close to the external end of the forceps channel, the arthroscope host is further provided with a general control module connected with the power signal transmission line, and the image sensing module and the LED module are connected with the general control module through wires.

[0014] As a preferred scheme of the electronic arthroscope with the external structure, the forceps channel end is provided with a guide sleeve matched with the external end of the forceps channel at one end close to the external end of the forceps channel, and the guide sleeve is an integral forming structure with the forceps channel end, and the guide sleeve is provided with a guide groove corresponding to the first sliding rail.

[0015] As a preferred scheme of the electronic arthroscope with the external structure, the second sliding rail is provided with an insulated wire groove subjected to insulation treatment, and the insulated wire groove is respectively provided with a conductive spring plate and an electromagnetic block corresponding to the power contact and the clamping sliding block, and the conductive spring plate and the electromagnetic block are connected with the power signal transmission line in the single-diameter tube.

[0016] As a preferred scheme of the electronic arthroscope with the external structure, the single-diameter tube is a straight pipe made of stainless steel, the forceps channel pipe body is provided with a positioning groove along the axial direction thereof, the forceps channel pipe body is slidingly sleeved on the single-diameter tube, and the single-diameter tube is provided with a positioning protrusion matched with the positioning groove, and the forceps channel pipe body is slidingly arranged along the axial direction of the single-diameter tube through the positioning groove and the positioning protrusion.

[0017] In summary, the present application has at least one of the following beneficial effects:

[0018] 1. The present application realizes the modular operation of the forceps channel by adopting the separated design and the external sliding rail connection mode, doctors can conveniently disassemble and assemble the forceps channel pipe body with different functions according to the operation requirements, and the whole arthroscope does not need to be replaced, thereby effectively reducing the medical cost.

[0019] 2. The present application ensures the stable connection of the forceps channel end during the operation process by adopting the double locking mode of the clamping block and the ratchet claw groove matched with the mechanical locking and the clamping sliding block attracted by the electromagnetic block with the electronic locking, avoids the loosening caused by external force, and guarantees the safe and reliable operation.

[0020] 3. The present application protects the whole pipe diameter by adopting the sealing blocking ring matched with the guide sleeve to prevent impurities from entering, and simplifies the disassembly and reset process of the forceps channel end by adopting the reset mechanism, thereby being convenient for operation and maintenance and improving the equipment use efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only show some embodiments of the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0023] Figure 2 It is a schematic diagram of the exploded structure of the present application.

[0024] Figure 3 It is a schematic diagram of the cooperation and installation of the outer end of the forceps channel and the forceps channel end.

[0025] Figure 4 It is a schematic diagram of the cooperation and installation of the outer end of the forceps channel and the reset mechanism.

[0026] Figure 5 It is a schematic diagram of the cooperation and installation of the outer end of the forceps channel and the reset mechanism. Figure 2

[0027] Figure 6 It is a schematic diagram of the cooperation and installation of the outer end of the forceps channel and the reset mechanism.

[0028] Figure 7 It is a schematic diagram of the cooperation and installation of the outer end of the forceps channel and the reset mechanism.

[0029] Figure 8 It is a schematic diagram of the cooperation and installation of the outer end of the forceps channel and the reset mechanism.

[0030] Figure 9 It is a schematic diagram of the cooperation and installation of the outer end of the forceps channel and the reset mechanism.

[0031] Explanation of reference signs:

[0032] 1, arthroscopic endoscope main machine; 2, single diameter tube; 201, forceps channel pipe body; 3, forceps channel outer end; 301, first sliding rail; 302, clamping rotating groove; 303, second sliding rail; 304, pawl groove; 4, image sensing module; 5, LED module; 6, general control module; 7, forceps channel end; 701, guide sleeve; 702, guide groove; 8, instrument operation channel; 9, clamping sliding block; 10, power contact; 11, sealing ring; 1101, viewing port; 12, insulated wire groove; 13, conductive spring; 14, electromagnetic block; 15, protective sleeve; 16, docking bolt; 1601, guide protrusion; 17, spring; 18, clamping block; 1801, pawl end; 19, torsional spring shaft. DETAILED DESCRIPTION

[0033] ​The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0034] The embodiment of the present application discloses an electronic arthroscope with an external structure.

[0035] Embodiment 1

[0036] Reference Figures 1-9For the first embodiment of the application, an electronic arthroscope with an external structure is provided, which comprises an arthroscope main machine 1, a single-diameter tube 2 with a built-in power supply signal transmission line mounted on the arthroscope main machine 1, a forceps channel tube body 201 slidably connected to the single-diameter tube 2, and a forceps channel external end 3 provided at an end of the single-diameter tube 2 away from the arthroscope main machine 1 for externally connecting a forceps channel end head 7, wherein the forceps channel end head 7 is provided with an instrument operation channel 8 corresponding to the forceps channel tube body 201, and the forceps channel end head 7 and the single-diameter tube 2 are respectively provided with a locking mechanism and a reset mechanism for detachable installation of the forceps channel end head 7, the locking mechanism comprises a clamping block 18 movably connected in the forceps channel end head 7 and rotatably connected to the forceps channel end head 7 through a torsion spring shaft 19, and the clamping block 18 is further provided with a pawl end 1801 matched with a pawl slot 304, the reset mechanism comprises a protective sleeve 15 sleeved on an end of the single-diameter tube 2 close to the forceps channel external end 3, a docking bolt 16 slidably connected in the protective sleeve 15, and a spring 17 sleeved on the single-diameter tube 2 in the protective sleeve 15, and an end of the docking bolt 16 extending out of the protective sleeve 15 is provided with a guide protrusion 1601 corresponding to a guide slot 702, the arthroscope main machine 1 serves as the core control unit of the entire device, integrates multiple functional modules such as power management, image processing, and signal analysis, and provides protection for stable operation of the device, the single-diameter tube 2 is made of a straight tube-shaped stainless steel, which not only has good rigidity but also effectively protects the internal power supply signal transmission line from external interference and physical damage, the forceps channel external end 3 can realize quick connection and separation of the forceps channel end head 7 and the single-diameter tube 2 through the reset mechanism and the locking mechanism, so that the forceps channel tube body 201 with different types of surgical instruments can be flexibly replaced, the use cost is reduced, the instrument operation channel 8 provides a stable operation space for the surgical instruments, doctors can flexibly control various surgical instruments (grasping forceps, planing knives, radiofrequency electrodes, etc.) through the channel to complete complex surgical operations such as tissue cutting and grabbing, the clamping block 18 is rotatably connected to the forceps channel end head 7 through the torsion spring shaft 19, the torsion spring shaft 19 provides the clamping block 18 with an elastic reset force, when installing the forceps channel end head 7, doctors can manually operate the pawl end 1801 on the clamping block 18 to temporarily separate from the pawl slot 304, facilitating installation and adjustment of the forceps channel end head 7, when the clamping block 9 enters the second sliding rail 303 and rotates into place, the pawl end 1801 will automatically enter the corresponding pawl slot 304 under the action of the torsion spring shaft 19, realizing locking of the forceps channel end head 7, the protective sleeve 15 protects the components such as the docking bolt 16 and the spring 17 in the reset mechanism from physical damage and pollution from the outside world, and also provides stable guidance for sliding of the docking bolt 16, the spring 17 provides the docking bolt 16 with a reset force, when the forceps channel end head 7 needs to be detached, doctors manually press the forceps channel end head 7 to compress the spring 17, so that the guide protrusion 1601 on the docking bolt 16 further engages with the guide slot 702, at this time the forceps channel end head 7 can be rotated and taken out, after the docking bolt 16 is released,The spring 17 automatically resets the docking bolt 16, so that the guide protrusion 1601 is re-aligned with the guide slot 702, ensuring the accuracy and stability of the docking bolt 16 during sliding, preventing deviation or jamming, and ensuring the normal operation of the reset mechanism and the smooth disassembly and installation of the clamp head 7.

[0037] The outer surface of the clamp head 3 is provided with two parallel first sliding rails 301 and second sliding rails 303, and the first sliding rails 301 and the second sliding rails 303 extend along the axial direction of the single-diameter pipe 2. The inner wall of the clamp head 7 is provided with a clamping sliding block 9 matched with the first sliding rails 301 corresponding to the first sliding rails 301, and the clamping sliding block 9 is provided with a protruding power contact 10. The connection between the clamp head 3 and the single-diameter pipe 2 is provided with a clamping rotating groove 302 connected with the first sliding rails 301. The first sliding rails 301 are connected with the second sliding rails 303 through the clamping rotating groove 302. The parallel arrangement of the first sliding rails 301 and the second sliding rails 303 provides accurate guidance for the installation of the clamp head 7, ensuring that the clamp head 7 can be accurately and quickly connected with the clamp head 3. When installing the clamp head 7, the clamping sliding block 9 can smoothly slide along the first sliding rails 301 until it reaches the clamping rotating groove 302. The clamping rotating groove 302 cleverly realizes the transition of the clamp head 7 from linear sliding to rotary locking. After the clamping sliding block 9 enters the clamping rotating groove 302, the clamp head 7 is rotated to make the clamping sliding block 9 smoothly enter the second sliding rails 303, completing the preliminary installation positioning.

[0038] The first sliding rails 301 and the second sliding rails 303 are embeddedly installed on the clamp head 3, and the included angle between the first sliding rails 301 and the clamping rotating groove 302 is ninety degrees. The clamp head 3 is also provided with a ratchet groove 304 corresponding to the second sliding rails 303, and the ratchet groove 304 is linearly arranged along the axial direction of the single-diameter pipe 2. The embedded installation of the first sliding rails 301 and the second sliding rails 303 makes the outer surface of the clamp head 3 more smooth, reducing the risk of wear and tear. The included angle between the first sliding rails 301 and the second sliding rails 303 is ninety degrees, so that when the clamp head 7 is inserted and slid in the clamping rotating groove 302 through the first sliding rails 301, the clamp head 7 is manually rotated by ninety degrees to realize the rapid positioning of the clamping sliding block 9 and the second sliding rails 303.

[0039] The sealing baffle ring 11 is fixedly installed at the end of the forceps channel end head 7 away from the forceps channel external end 3, and the center part of the sealing baffle ring 11 is provided with an observation port 1101 corresponding to the image sensing module 4. The main function of the sealing baffle ring 11 is to prevent impurities such as liquid and tissue fragments in the surgical process from entering the connection part of the forceps channel end head 7 and the single-diameter tube 2, so as to avoid pollution and damage to the internal power supply signal transmission line, image sensing module 4 and other precision components, thereby ensuring the normal operation and service life of the equipment. The setting of the observation port 1101 ensures that the image sensing module 4 can clearly collect the image of the surgical site. The size and position are accurately designed and perfectly matched with the image sensing module 4 to ensure a good visual range, and the overall tube diameter is less than 2.5mm due to the absence of an outer wall.

[0040] The image sensing module 4 and the LED module 5 connected to the power supply signal transmission line are arranged at the end of the single-diameter tube 2 close to the forceps channel external end 3. The joint endoscope host 1 is also provided with a general control module 6 connected to the power supply signal transmission line, and the image sensing module 4 and the LED module 5 are electrically connected to the general control module 6 through wires. The image sensing module 4 and the LED module 5 cooperate to quickly and stably transmit the collected image signals to the general control module 6. After processing and analyzing the image, the general control module 6 presents a clear surgical picture on the display, providing an accurate surgical field of view for the doctor.

[0041] The forceps channel end head 7 is provided with a guide sleeve 701 matched with the forceps channel external end 3 at the end close to the forceps channel external end 3, and the guide sleeve 701 and the forceps channel end head 7 are an integral structure. The guide sleeve 701 is provided with a guide groove 702 corresponding to the first sliding rail 301. The gap design of the guide sleeve 701 and the forceps channel external end 3 ensures that the forceps channel end head 7 can be smoothly installed and removed, and also plays a certain sealing role, so that the forceps channel end head 7 can be accurately aligned with the forceps channel external end 3 during installation.

[0042] The second sliding rail 303 is provided with an insulating wire groove 12 subjected to insulation treatment, and the insulating wire groove 12 is respectively provided with an electrically-conductive spring piece 13 and an electromagnetic block 14 corresponding to the electric contact 10 and the clamping sliding block 9, and the electrically-conductive spring piece 13 and the electromagnetic block 14 are connected with the power signal transmission line in the single-diameter tube 2, the single-diameter tube 2 is made of a straight tube-shaped stainless steel, the clamp tube body 201 is provided with a positioning groove along the axial direction thereof, the clamp tube body 201 is slidingly sleeved on the single-diameter tube 2, and the single-diameter tube 2 has a positioning protrusion matched with the positioning groove, the clamp tube body 201 slides along the axial direction of the single-diameter tube 2 through the positioning groove and the positioning protrusion, the insulation treatment of the insulating wire groove 12 effectively prevents the short circuit phenomenon between the electrically-conductive spring piece 13 and the electromagnetic block 14, and ensures the safe and stable operation of the power signal transmission line, the electrically-conductive spring piece 13 corresponds to the electric contact 10, when the clamp end head 7 is installed in place, the electric contact 10 will be in close contact with the electrically-conductive spring piece 13, realizing the electrical connection between the clamp end head 7 and the power signal transmission line in the single-diameter tube 2, and providing power supply and signal transmission for the related equipment of the instrument operation channel 8 on the clamp end head 7, the electromagnetic block 14 corresponds to the clamping sliding block 9, and in the surgical process, the electromagnetic block 14 can generate magnetic force according to the need, further enhancing the connection strength between the clamping sliding block 9 and the second sliding rail 303, and preventing the clamp end head 7 from loosening due to external force.

[0043] In the use process of the device, unlike the traditional integrated design, the device needs to determine the surgical instrument in the clamp tube body 201 and install it before use, first slidingly clamping the clamp tube body 201 on the single-diameter tube 2, locking and reinforcing through the clamp end head 7, and when installing the clamp end head 7, first making the clamp end head 7 close to the clamp external end 3, making the clamp end head 7 sleeved outside the clamp external end 3 with the image sensing module 4, then pushing the clamp end head 7, making the clamping sliding block 9 slide along the first sliding rail 301, until the clamping sliding block 9 reaches the clamping turning groove 302, at this time, manually rotating the clamp end head 7 by ninety degrees, realizing the transition of the clamp end head 7 from linear sliding to rotation through the clamping turning groove 302, making the clamping sliding block 9 smoothly enter the second sliding rail 303, completing the preliminary installation and positioning, after the two are slidingly positioned, the locking mechanism is automatically clamped, ensuring the stable connection between the clamp end head 7 and the single-diameter tube 2, and further ensuring the stable connection between the clamp tube body 201 and the single-diameter tube 2, adopting the separated design and the external hanging type sliding rail connection mode, realizing the modular operation of the clamp channel, and the doctor can conveniently disassemble and assemble the clamp channels with different functions according to the surgical needs, without replacing the entire arthroscope, effectively reducing the medical cost.

[0044] During the movement of the clamping slider 9, the electrical contact 10 on the clamping slider 9 gradually approaches the conductive spring 13 on the insulating slot 12 in the second sliding rail 303. When the clamp head 7 is installed in place, the electrical contact 10 is in close contact with the conductive spring 13, thereby realizing the electrical connection between the clamp head 7 and the internal power supply signal transmission line of the single-diameter tube 2, providing power supply and signal transmission for the equipment related to the instrument operating channel 8. The doctor assembles various surgical instruments such as forceps, skiving knives, and radiofrequency electrodes through the instrument operating channel 8. Since the clamp head 7 has completed the electrical connection with the single-diameter tube 2, the surgical instruments in the instrument operating channel 8 can obtain power supply and signal transmission, and the doctor can flexibly control these instruments to complete complex surgical operations such as tissue cutting and grabbing;

[0045] At the same time, when the rotating clamp head 7 is installed in place, the pawl end 1801 on the clamping block 18 is automatically clamped into the corresponding pawl slot 304 of the second sliding rail 303 under the elastic restoring force of the torsion spring shaft 19, completing the locking of the clamp head 7. After the clamping is completed, the electromagnetic block 14 in the second sliding rail 303 can be energized according to the needs of the operation to generate a magnetic force to attract the clamping slider 9, further enhancing the connection strength between the clamp head 7 and the single-diameter tube 2, preventing the clamp head 7 from loosening due to external forces generated during the operation. The dual locking method of mechanical and electronic ensures stable connection during the operation;

[0046] The sealing ring 11 cooperates with the guide sleeve 701 that is in clearance fit with the single-diameter tube 2, effectively preventing impurities such as liquid and tissue fragments during the operation from entering the connection part of the clamp head 7 and the single-diameter tube 2, protecting the internal power supply signal transmission line, image sensing module 4, and other precision components, and ensuring the normal operation of the equipment;

[0047] When the surgery ends and the clamp channel pipe body 201 needs to be disassembled or replaced, the double locking of the clamp channel end head 7 needs to be released first. The doctor manually pushes the clamp channel end head 7 inward, so that the docking plug 16 in the reset mechanism moves inward, compresses the spring 17, and the guide protrusions 1601 on the docking plug 16 further engage with the guide groove 702. At this time, the clamp channel end head 7 can be manually rotated, so that the pawl end 1801 on the clamping block 18 is disengaged from the pawl slot 304. In this process, the clamping block 9 slides from the second slide rail 303 into the clamping rotating groove 302, and then reversely slides along the first slide rail 301, so as to take off the clamp channel end head 7 from the clamp channel external terminal 3. After the docking plug 16 is released, the spring 17 automatically resets the docking plug 16, so that the guide protrusions 1601 of the docking plug 16 are re-aligned with the guide groove 702, ready for the next installation of the clamp channel end head 7. Then the corresponding clamp channel pipe body 201 is taken off from the positioning protrusion on the single-diameter pipe 2, thereby simplifying the steps required for the next assembly. In special conditions (the use scene is relatively narrow, and the complete structure of the device is difficult to enter the operation), the clamp channel pipe body 201 can be directly assembled with the single-diameter pipe 2 without the locking of the clamp channel end head 7 and the clamp channel external terminal 3. Only the direct docking of the positioning protrusion and the positioning groove is used to complete the clamping, so that the overall pipe diameter is smaller compared with the traditional outer wall type wrapping design.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. An electronic arthroscope with an external mounting structure, characterized by: The utility model relates to a joint endoscope host computer (1) is installed with the single radial pipe (2) of built -in power supply signal transmission circuitry on it, the single radial pipe (2) is slidably connected with the forceps channel pipe body (201), and the single radial pipe (2) is equipped with the forceps channel external end (3) for external connection forceps channel end head (7) on the end away from joint endoscope host computer (1), the forceps channel end head (7) is equipped with the instrument operation channel (8) corresponding with forceps channel pipe body (201) on it, and the forceps channel end head (7) and single radial pipe (2) are equipped with the locking mechanism and reset mechanism for forceps channel end head (7) dismounting and installation respectively on it, The locking mechanism includes a clamping block (18) movably connected in the forceps channel end head (7), and the clamping block (18) is rotatably connected with the forceps channel end head (7) through a torsion spring shaft (19), and the clamping block (18) is further provided with a pawl end (1801) matched with a pawl slot (304). The reset mechanism includes a protective sleeve (15) sleeved on one end of the single radial pipe (2) close to the forceps channel external end (3), a butt plug (16) is slidably connected in the protective sleeve (15), and a spring (17) is sleeved on the single radial pipe (2) in the protective sleeve (15), and one end of the butt plug (16) extending out of the protective sleeve (15) is provided with a guide protrusion (1601) corresponding to a guide slot (702).

2. The electronic endoscope with an overhang structure according to claim 1, characterized by The outer surface of the forceps channel external end (3) is provided with two parallel first sliding rails (301) and second sliding rails (303), and the first sliding rails (301) and the second sliding rails (303) both extend along the axial direction of the single radial pipe (2), the inner wall of the forceps channel end head (7) is provided with a clamping sliding block (9) matched with the first sliding rails (301) corresponding to the first sliding rails (301), the clamping sliding block (9) is provided with a protruding power contact (10), and the connection between the forceps channel external end (3) and the single radial pipe (2) is provided with a clamping rotating groove (302) in communication with the first sliding rails (301), and the first sliding rails (301) are in communication with the second sliding rails (303) through the clamping rotating groove (302).

3. The electronic endoscope with an on-lay structure according to claim 2, characterized by The first sliding rails (301) and the second sliding rails (303) are both embeddedly installed on the forceps channel external end (3), the included angle between the first sliding rails (301) and the second sliding rails (303) is ninety degrees, the forceps channel external end (3) is further provided with a pawl slot (304) corresponding to the second sliding rails (303), and the pawl slot (304) is linearly arranged along the axial direction of the single radial pipe (2).

4. The electronic endoscope with an overhang structure according to claim 1, characterized by The forceps channel end head (7) is fixedly installed with a sealing baffle ring (11) away from the forceps channel external end (3), and the center part of the sealing baffle ring (11) is provided with an observation port (1101) corresponding to an image sensing module (4).

5. The electronic endoscope with an overhang structure according to claim 4, characterized by The single-diameter pipe (2) is provided with an image sensing module (4) and an LED module (5) connected with power signal transmission lines at one end close to the outer end of the channel (3), the arthroscope host (1) is further provided with a general control module (6) connected with the power signal transmission lines, and the image sensing module (4) and the LED module (5) are both connected with the general control module (6) through wires.

6. The electronic endoscope with an on-lay structure according to claim 1, characterized by The channel end (7) is provided with a guide sleeve (701) matched with the channel outer end (3) at one end close to the channel outer end (3), and the guide sleeve (701) and the channel end (7) are an integral structure, and the guide sleeve (701) is provided with a guide groove (702) corresponding to the first sliding rail (301).

7. The electronic endoscope with an overhang structure according to claim 2, characterized by The second sliding rail (303) is provided with an insulated wire groove (12) for insulation treatment, and the insulated wire groove (12) is respectively provided with a conductive spring (13) and an electromagnetic block (14) corresponding to the electric contact (10) and the clamping sliding block (9), and the conductive spring (13) and the electromagnetic block (14) are connected with the power signal transmission lines in the single-diameter pipe (2).

8. The electronic arthroendoscope with an external hanging structure according to claim 1, characterized in that: The single-diameter pipe (2) is a straight pipe made of stainless steel, the channel pipe body (201) is provided with a positioning groove along the axial direction, the channel pipe body (201) is slidingly sleeved on the single-diameter pipe (2), and the single-diameter pipe (2) has a positioning protrusion matched with the positioning groove, and the channel pipe body (201) is slidingly arranged along the axial direction of the single-diameter pipe (2) through the positioning groove and the positioning protrusion.

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