Electronic endoscope

Abstract

The application provides an electronic ophthalmic endoscope, and belongs to the technical field of endoscopes. The electronic ophthalmic endoscope can effectively observe the posterior region of an eyeball. The electronic ophthalmic endoscope comprises a handle, an insertion part arranged at the front of the handle, and a camera module. The insertion part is curved into an arc shape as a whole, the curvature of the arc shape is matched with the outer contour of the eyeball, and the cross section of the insertion part is flat. The arc-shaped insertion part can enter along the surface of the eyeball in a ring shape during use, so that the front end can reach the posterior region of the eyeball. A light guide fiber delivers light emitted by a light source to the head end part, illuminates the observation part, and clearly and timely visually observes the posterior region of the eyeball and the running path through the camera module. Compared with a cylindrical structure, the electronic ophthalmic endoscope can effectively reduce the height of the support from the surrounding tissue of the eyeball, reduce the mechanical pressure on the sclera and the adjacent soft tissue, and improve the operation safety and the comfort of the patient under the same functional size.

Description

Technical Field

[0001] This invention belongs to the field of endoscopy technology and relates to an electronic eye endoscope. Background Technology

[0002] In the progression of myopia, especially high myopia, the axial length of the eye gradually and irreversibly elongates. To control further elongation of the axial length, posterior scleral reinforcement surgery is often used clinically. This involves implanting a strip of biological or synthetic material around the eyeball to mechanically support and slow down axial growth. The surgery typically requires a 3 / 4 circumference conjunctival incision behind the limbus. The reinforcement strip is introduced through this incision, traversing the scleral surface posteriorly, bypassing the macula, and finally exiting on the opposite side and sutured to the sclera. However, due to the narrow space and complex anatomy of the retrobulbar space, containing important structures such as the optic nerve and vortex veins, the path of the strip to the posterior pole of the eyeball is uncontrollable. If the implant is improperly positioned, it can easily cause direct mechanical compression of the optic nerve, leading to complications such as decreased vision or visual field defects. Once optic nerve damage occurs, an emergency secondary surgery is usually required within hours to adjust or release the strip.

[0003] Therefore, accurate visualization of the retrobulbar structures during surgery is crucial.

[0004] Currently, most endoscopes used in ophthalmic surgery (such as CN219184485U) use a straight rod insertion part. When dealing with the posterior region of the eyeball, its rigid structure is difficult to conform to the physiological curvature of the eyeball, resulting in difficulty in insertion and inability to effectively observe the state of the strip in the posterior region of the eyeball. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an electronic ophthalmic endoscope that can effectively penetrate the posterior region of the eyeball.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] An electronic eye endoscope includes a handle, an insertion part located at the front of the handle, and a camera module located at the front end face of the insertion part. The insertion part is curved into an arc shape, and its curvature is adapted to the outer contour of the eyeball. The cross-section of the insertion part is flat, and the long side of the cross-section extends along the width direction of the entire insertion part.

[0008] The arc-shaped insertion part can wrap around the surface of the eyeball during use, bypassing the obstruction of the eyeball, allowing the tip to reach the posterior region of the eyeball. A camera module provides clear, real-time visualization of the strip's path in the posterior region. The flat cross-section of the insertion part, compared to a cylindrical structure, effectively reduces the displacement height on surrounding tissues within the same functional dimensions, lowers mechanical pressure on the sclera and adjacent soft tissues, and improves operational safety and patient comfort.

[0009] When using a full-color night vision camera module, a light source is not required.

[0010] In the aforementioned electronic eye endoscope, the handle is provided with a light source, an optical fiber, and a positioning structure. The light-emitting end of the optical fiber extends to the front end face of the insertion part, and the positioning structure is used to precisely align the light-incoming end of the optical fiber with the light source.

[0011] The light source is an LED, and the emitted light is transmitted to the front end of the insertion part through optical fiber.

[0012] In the aforementioned electronic endoscope, the handle is provided with an irrigation channel extending to the front end face of the insertion part. The handle is equipped with a water connector, the inner end of which communicates with the rear end of the irrigation channel. Cleaning water injected through the water connector can be delivered to the front end of the insertion part via the irrigation channel for rinsing or cleaning the observation area.

[0013] In the aforementioned electronic endoscope, the handle has an instrument channel extending to the front end face of the insertion part, and the handle has an instrument inlet communicating with the rear end of the instrument channel. Through the instrument channel, doctors can insert various specialized miniature instruments into the target area to complete diagnostic or treatment procedures.

[0014] In the aforementioned electronic endoscope, the infusion channel, camera module, and instrument channel are arranged sequentially along the width of the entire insertion section; the optical fiber has two light-emitting ends, one of which is located between the infusion channel and the camera module, and the other is located between the instrument channel and the camera module.

[0015] In the aforementioned electronic eye endoscope, the positioning structure includes a beam fixing component and a light source heat conduction component located behind the beam fixing component. The beam fixing component has a through hole that mates with the light-inlet end of the optical fiber and a first slot through which the signal line of the camera module passes. The light source heat conduction component has a second slot through which the signal line passes. The first slot and the second slot are connected. The light source is installed at the front end of the light source heat conduction component.

[0016] The through-hole is configured to radially and axially limit the light-incident end of the optical fiber, thereby ensuring precise alignment between the light-incident end of the optical fiber and the light source, improving optical coupling efficiency, and reducing light energy loss due to positional misalignment. Simultaneously, the signal lines of the camera module are laid within the continuous channel formed by the first and second slots, achieving physical separation from the optical fiber, facilitating individual maintenance or replacement of the signal lines or optical fiber.

[0017] In the aforementioned electronic endoscope, the handle is provided with a limiting step, the front end of the beam fixing member abuts against the limiting step, the front end of the light source heat-conducting member abuts against the rear end of the beam fixing member, and a cable connector is connected to the rear end of the handle, with the front end of the cable connector abutting against the rear end of the light source heat-conducting member.

[0018] The cable connector is detachably connected to the handle. When the cable connector is in place, it effectively positions the beam fixture and the light source heat conductor in the axial direction. The signal line and the light source wire pass through the inner hole of the cable connector and are connected to the main unit. A light source mounting space is provided at the front end of the light source heat conductor. The light source is located within the light source mounting space and does not protrude from the front end of the light source heat conductor. This ensures that the front surface of the light source heat conductor can flatly abut against the rear end surface of the beam fixture, guaranteeing the reliability of the axial positioning between components and the stability of the optical path alignment.

[0019] In the aforementioned electronic eye endoscope, the side of the light source heat conductor is provided with a third slot through which the positive electrode wire of the light source passes and a fourth slot through which the negative electrode wire of the light source passes. The third slot and the fourth slot are located on different sides of the light source heat conductor.

[0020] Since the beam fixing component and the light source heat conduction component are both cylindrical and coaxially assembled in the shaft hole of the handle, it is convenient to lead out the positive electrode wire, negative electrode wire and signal line of the camera module of the light source respectively, so as to realize the orderly separation and layout of multiple lines.

[0021] In the aforementioned electronic endoscope, a threaded hole is provided on the outer periphery of the handle. The inner end of the threaded hole is located at the point where the beam fixing component and the light source heat conduction component abut. A limiting post is threaded into the threaded hole, and the inner end of the limiting post extends into both the first and second slots. The widths of the first and second slots are equal, and the outer diameter of the limiting post is equal to the width of the first slot. This allows the limiting post to be tightly embedded in the continuous channel formed by the first and second slots, effectively restricting the relative rotation of the beam fixing component and the light source heat conduction component in the circumferential direction, ensuring that they maintain a fixed circumferential position after assembly.

[0022] In the aforementioned electronic eye endoscope, the cable connector is magnetically connected to the handle.

[0023] Multiple first magnets are circumferentially distributed at the rear end of the handle, and multiple second magnets, corresponding one-to-one with the first magnets, are circumferentially distributed at the front end of the cable connector. The first magnets and second magnets attract each other. Multiple pins, connected to the positive, negative, and signal wires respectively, are located on the rear end face of the heat-conducting component of the light source. Multiple spring pins, connected to the positive, negative, and signal wires within the cable, are located on the front end face of the cable connector. Each pin and spring pin corresponds to one other. When the cable connector is magnetically connected to the handle, the pins and their corresponding spring pins engage.

[0024] Compared with existing technologies, this electronic eye endoscope has the following advantages:

[0025] By employing an arc-shaped insertion part that conforms to the contour of the eyeball, it can bypass the eyeball and directly reach the posterior region, enabling clear and real-time visualization of the retrobulbar region. Scleral reinforcement surgery can be performed in a single procedure. The flat cross-section of the insertion part, compared to a cylindrical structure, effectively reduces the height of displacement from surrounding tissues within the same functional dimensions, reduces mechanical pressure on the sclera and adjacent soft tissues, and improves operational safety and patient comfort. The multi-positioning mechanism, including limiting steps, axial clamping of cable connectors, and circumferential locking of limiting posts, enables high-precision and high-stability assembly of the beam fixation component, light source heat conduction component, and light source within a narrow axial hole, meeting the miniaturization requirements of endoscopes. It supports irrigation and minimally invasive operations, with a compact overall structure, convenient assembly, and good heat dissipation, significantly improving the feasibility, safety, and efficiency of ophthalmic surgery. Attached Figure Description

[0026] Figure 1 This is a partial structural diagram of an electronic eye endoscope.

[0027] Figure 2 This is a cross-sectional view of a portion of the structure of an electronic eye endoscope.

[0028] Figure 3 yes Figure 2 Enlarged schematic diagram of the middle part of the structure.

[0029] Figure 4 This is a front view of the front end of the insertion section in an electronic eye endoscope.

[0030] Figure 5 This is a cross-sectional view of the beam fixing component in an electronic eye endoscope.

[0031] Figure 6 This is a side view of the beam fixation device in an electronic eye endoscope.

[0032] Figure 7 This is a cross-sectional view of the heat-conducting component of the light source in an electronic eye endoscope.

[0033] Figure 8 This is a front view of the heat-conducting component of the light source in an electronic eye endoscope.

[0034] Figure 9 This is a front view of the rear end face of the handle in an electronic eye endoscope.

[0035] Figure 10 This is a front view of the front end of the cable connector in an electronic eye endoscope.

[0036] In the diagram, 1. Handle; 11. Infusion channel; 12. Water connector; 13. Instrument channel; 14. Instrument inlet; 15. Limiting step; 16. Threaded hole; 2. Insertion part; 3. Camera module; 4. Light source; 5. Optical fiber; 6. Beam fixing component; 61. Through hole; 62. First slot; 7. Light source heat conductor; 71. Second slot; 72. Third slot; 73. Fourth slot; 74. Ejector pin; 75. First magnet; 8. Cable connector; 81. Second magnet; 82. Spring pin. Detailed Implementation

[0037] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0038] Example 1

[0039] An electronic eye endoscope includes a handle 1, an insertion part 2 located at the front of the handle 1, and a camera module 3 located at the front end of the insertion part 2. The insertion part 2 is curved into an arc shape, and its curvature is adapted to the outer contour of the eyeball. The cross-section of the insertion part 2 is flat and elliptical, and the long side of the cross-section extends along the width direction of the insertion part 2. When in use, the insertion part 2 can be inserted around the surface of the eyeball so that the front end of the insertion part 2 can reach the posterior region of the eyeball.

[0040] The arc-shaped insertion part 2 can be inserted around the surface of the eyeball during use, overcoming the obstruction of the eyeball, so that the tip of the insertion part 2 can reach the posterior region of the eyeball. The camera module 3 provides clear and real-time visualization of the path of the strip in the posterior region of the eyeball. The cross-section of the insertion part 2 is flat, which, compared with a cylindrical structure, can effectively reduce the height of the support to the surrounding tissues of the eyeball under the same functional size, reduce the mechanical pressure on the sclera and adjacent soft tissues, and improve the safety of operation and patient comfort.

[0041] When in use, the insertion part 2 surrounds half of the eyeball.

[0042] Example 2

[0043] The structural principle of this embodiment is basically the same as that of Embodiment 1. The difference is that the handle 1 is provided with an infusion channel 11 extending to the front end face of the insertion part 2. Figure 1 As shown, the handle 1 is equipped with a water connector 12, the inner end of which is connected to the rear end of the injection channel 11. The cleaning water injected by the water connector 12 can be delivered to the front end of the insertion part 2 through the injection channel 11 for rinsing or cleaning the observation area.

[0044] Meanwhile, the handle 1 is provided with an instrument channel 13 extending to the front end face of the insertion part 2, such as Figure 1As shown, the handle 1 is provided with an instrument inlet 14 that communicates with the rear end of the instrument channel 13. Through the instrument channel 13, doctors can insert various specialized micro-instruments into the target area to complete diagnostic or treatment procedures.

[0045] The infusion channel 11, the camera module 3, and the instrument channel 13 are arranged sequentially along the width of the insertion part 2. That is, the camera module 3 is centrally located, and the infusion channel 11 and the instrument channel 13 are located on the left and right sides of the camera module 3, respectively.

[0046] Example 3

[0047] The structural principle of this embodiment is basically the same as that of embodiment two. The difference is that the handle 1 is provided with a light source 4 and an optical fiber 5. The light source 4 is an LED, and the emitted light is transmitted to the front end of the insertion part 2 through the optical fiber 5.

[0048] Specifically, such as Figure 4 As shown, the optical fiber 5 has two light-emitting ends, one of which is located between the infusion channel 11 and the camera module 3, and the other is located between the instrument channel 13 and the camera module 3.

[0049] Example 4

[0050] The structural principle of this embodiment is basically the same as that of embodiment three. The difference is that the handle 1 is provided with a positioning structure for precisely aligning the light-inlet end of the optical fiber 5 with the light source 4.

[0051] like Figure 2 and Figure 3 As shown, the positioning structure includes a beam fixing member 6 and a light source heat-conducting member 7 located behind the beam fixing member 6, as... Figure 5 and Figure 6 As shown, the beam fixing member 6 has a through hole 61 that mates with the light-inlet end of the optical fiber 5 and a first slot 62 for the signal line of the camera module 3 to pass through, as shown. Figure 7 As shown, the heat-conducting component 7 of the light source is provided with a second slot 71 for the signal line to pass through. The first slot 62 is connected to the second slot 71. The light source 4 is installed at the front end of the heat-conducting component 7 of the light source.

[0052] The through-hole 61 is configured to radially and axially limit the light-incident end of the optical fiber 5, thereby ensuring precise alignment between the light-incident end of the optical fiber 5 and the light source 4, improving optical coupling efficiency, and reducing light energy loss due to positional misalignment. Simultaneously, the signal lines of the camera module 3 are laid within the continuous channel formed by the first slot 62 and the second slot 71, achieving physical separation from the optical fiber 5, facilitating individual maintenance or replacement of the signal lines or the optical fiber 5.

[0053] like Figure 3As shown, the handle 1 has a limiting step 15 inside, the front end of the beam fixing member 6 abuts against the limiting step 15, the front end of the light source heat conductor 7 abuts against the rear end of the beam fixing member 6, and the rear end of the handle 1 is connected to a cable connector 8, the front end of the cable connector 8 abuts against the rear end of the light source heat conductor 7.

[0054] The cable connector 8 is detachably connected to the handle 1. When the cable connector 8 is in place, it effectively positions the beam fixing component 6 and the light source heat conduction component 7 axially. The signal line and the wire of the light source 4 pass through the inner hole of the cable connector 8 and are connected to the host after passing through the cable. A mounting space for the light source 4 is provided at the front end of the light source heat conduction component 7. The light source 4 is located in the mounting space and does not protrude from the front end of the light source heat conduction component 7. This avoids the light source 4 protruding from the front end of the light source heat conduction component 7, thereby ensuring that the front end face of the light source heat conduction component 7 can flatly abut against the rear end face of the beam fixing component 6, ensuring the reliability of the axial positioning between components and the stability of the optical path alignment.

[0055] like Figure 8 As shown, the side of the heat-conducting component 7 of the light source is provided with a third slot 72 through which the positive electrode wire of the light source 4 passes and a fourth slot 73 through which the negative electrode wire of the light source 4 passes. The third slot 72 and the fourth slot 73 are located on different sides of the heat-conducting component 7 of the light source.

[0056] Since both the beam fixing component 6 and the light source heat conduction component 7 are cylindrical and coaxially assembled in the shaft hole of the handle 1, it is convenient to lead out the positive electrode wire, negative electrode wire and signal line of the camera module 3 of the light source 4 respectively, so as to realize the orderly separation and layout of multiple lines.

[0057] Example 5

[0058] The structural principle of this embodiment is basically the same as that of embodiment four. The difference lies in that, in order to achieve circumferential limiting of the beam fixing component 6 and the light source heat-conducting component 7, such as... Figure 3 As shown, a threaded hole 16 is provided on the outer periphery of the handle 1. The inner end of the threaded hole 16 is located at the point where the beam fixing member 6 and the light source heat conduction member 7 meet. A limit post is connected to the threaded hole 16. The inner end of the limit post extends into the first slot 62 and the second slot 71 at the same time.

[0059] The widths of the first slot 62 and the second slot 71 are equal, and the outer diameter of the limiting post is equal to the width of the first slot 62, so that the limiting post can be tightly embedded in the continuous channel formed by the first slot 62 and the second slot 71, effectively restricting the relative rotation of the beam fixing member 6 and the light source heat conduction member 7 in the circumferential direction, and ensuring that the two maintain a fixed circumferential position after assembly.

[0060] Example 6

[0061] The structural principle of this embodiment is basically the same as that of embodiment five. The difference is that the cable connector 8 is magnetically connected to the handle 1.

[0062] Multiple first magnets 75 are distributed circumferentially at the rear end of the handle 1, such as... Figure 10 As shown, multiple (five in this embodiment) second magnets 81 are distributed circumferentially at the front end of the cable connector 8, each corresponding to the first magnet 75. The first magnet 75 and the second magnets 81 are attracted to each other. Figure 9 As shown, six pins 74 are provided on the rear end face of the heat-conducting component 7 of the light source, which are respectively connected to the positive electrode wire, the negative electrode wire, and the signal line. Figure 10 As shown, there are 6 spring pins 82 on the front end face of the cable connector 8, which are respectively connected to the positive wire, negative wire and signal wire in the cable. The pin 74 corresponds to the spring pin 82 one by one. When the cable connector 8 is magnetically connected to the handle 1, the pin 74 and the corresponding spring pin 82 are connected.

[0063] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An electronic eye endoscope, characterized in that, It includes a handle (1), an insertion part (2) located at the front of the handle (1), and a camera module (3) located at the front end of the insertion part (2). The insertion part (2) is bent into an arc shape, and its arc curvature is adapted to the outer contour of the eyeball. The cross section of the insertion part (2) is flat, and the long side of the cross section extends along the width direction of the insertion part (2).

2. The electronic eye endoscope according to claim 1, characterized in that, The handle (1) is provided with a light source (4), an optical fiber (5) and a positioning structure. The light-emitting end of the optical fiber (5) extends to the front end face of the insertion part (2). The positioning structure is used to precisely align the light-incoming end of the optical fiber (5) with the light source (4).

3. The electronic eye endoscope according to claim 2, characterized in that, The handle (1) is provided with an injection channel (11) extending to the front end face of the insertion part (2), and the handle (1) is provided with a water connector (12), the inner end of the water connector (12) being connected to the rear end of the injection channel (11).

4. The electronic eye endoscope according to claim 3, characterized in that, The handle (1) has an instrument channel (13) extending to the front end face of the insertion part (2), and the handle (1) has an instrument inlet (14) communicating with the rear end of the instrument channel (13).

5. The electronic eye endoscope according to claim 4, characterized in that, The infusion channel (11), camera module (3) and instrument channel (13) are arranged sequentially along the width of the entire insertion part (2); the optical fiber (5) has two light-emitting ends, one of which is located between the infusion channel (11) and the camera module (3), and the other is located between the instrument channel (13) and the camera module (3).

6. The electronic eye endoscope according to claim 2, 3, 4, or 5, characterized in that, The positioning structure includes a beam fixing member (6) and a light source heat conduction member (7) located behind the beam fixing member (6). The beam fixing member (6) has a through hole (61) that mates with the light-inlet end of the optical fiber (5) and a first slot (62) through which the signal line of the camera module (3) passes. The light source heat conduction member (7) has a second slot (71) through which the signal line passes. The first slot (62) and the second slot (71) are connected. The light source (4) is installed at the front end of the light source heat conduction member (7).

7. The electronic eye endoscope according to claim 6, characterized in that, The handle (1) is provided with a limiting step (15), the front end of the beam fixing member (6) abuts against the limiting step (15), the front end of the light source heat conductor (7) abuts against the rear end of the beam fixing member (6), and the rear end of the handle (1) is connected to a cable connector (8), the front end of the cable connector (8) abuts against the rear end of the light source heat conductor (7).

8. The electronic eye endoscope according to claim 6, characterized in that, The side of the heat-conducting component (7) of the light source is provided with a third slot (72) through which the positive electrode wire of the light source (4) passes and a fourth slot (73) through which the negative electrode wire of the light source (4) passes. The third slot (72) and the fourth slot (73) are located on different sides of the heat-conducting component (7).

9. The electronic eye endoscope according to claim 6, characterized in that, The handle (1) has a threaded hole (16) on its outer periphery. The inner end of the threaded hole (16) is located at the point where the beam fixing member (6) and the light source heat conductor (7) meet. The threaded hole (16) is connected to a limit post with a threaded connection. The inner end of the limit post extends into the first slot (62) and the second slot (71) at the same time.

10. The electronic eye endoscope according to claim 7, characterized in that, The cable connector (8) is magnetically connected to the handle (1).

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