A fiber-optic marking pen for retinal detachment surgery

Abstract

The application relates to the technical field of medical devices, in particular to a fiber positioning marker pen for retinal detachment external route reset surgery in ophthalmology. The fiber positioning marker pen for retinal detachment external route reset surgery in ophthalmology comprises a handle rod, an inside of which is provided with a battery compartment; a probe rod is screw-mounted at one end of the handle rod; a positioning rod is screw-mounted at the other end of the handle rod, and one end of the positioning rod, which is away from the handle rod, is provided with a hollow elbow; a probe assembly is embedded in a first through groove of the probe rod; a positioning assembly is embedded in a second through groove of the positioning rod, and the positioning assembly comprises a fiber light guide belt and a positioning head; a power supply assembly is embedded in the battery compartment, and both ends of the power supply assembly are electrically connected with bridging pieces. The application has the advantages that the retinal hole can be accurately positioned and marked on the sclera, thereby improving the success rate of surgery.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an optical fiber positioning marker pen for external approach repositioning surgery for retinal detachment in ophthalmology. Background Technology

[0002] Retinal detachment is a serious eye disease that threatens vision, and external retinal detachment repair surgery is a classic surgical procedure. The principle of external retinal detachment repair surgery in ophthalmology is to accurately locate the retinal tear and perform external scleral cryotherapy and external compression to reposition the detached retina.

[0003] Accurate localization of the retinal tear is a crucial step. Currently, doctors usually locate the lesion by observing it with a fundus ophthalmoscope before surgery. Then, based on the doctor's memory and experience, they use a scleral marker to mark the lesion outside the sclera. This often results in a discrepancy between the location of the retinal tear seen under the microscope and the actual location of the scleral marking point, leading to the failure of subsequent scleral intensification surgery.

[0004] Therefore, it is necessary to provide a new fiber optic positioning marker for external approach repositioning surgery for retinal detachment in ophthalmology to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides an optical fiber positioning marker pen for external approach repositioning surgery for retinal detachment, which features clear and accurate positioning marks and is easy to disassemble and maintain.

[0006] The fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment provided by the present invention includes: a handle rod with a battery compartment inside; a probe rod threaded onto one end of the handle rod; and a positioning rod threaded onto the other end of the handle rod, wherein the end of the positioning rod opposite to the handle rod has a hollow bend.

[0007] The illumination assembly is embedded in the first through slot of the illumination rod;

[0008] The positioning component is embedded in the second through slot of the positioning rod, and the positioning component includes an optical fiber guide strip and a positioning head. The optical fiber guide strip is embedded in the second through slot and its front end extends into the hollow elbow. The positioning head is threadedly installed on the bent front end of the hollow elbow, and a transparent protective lens is embedded at one end of the positioning head facing the inside of the hollow elbow. A gear-shaped protrusion is opened at the other end of the positioning head.

[0009] The power supply assembly is embedded in the battery compartment, and both ends of the power supply assembly are electrically connected to bridging components. The two bridging components are respectively installed at both ends of the handle and electrically connected to the same-side detection component and positioning component.

[0010] Preferably, the outer side wall of the handle bar is provided with anti-slip texture.

[0011] Preferably, the illumination assembly includes a light-emitting diode (LED), a mounting ring, an external electrical ring, an internal electrical ring, and a transparent protective plate. The LED is embedded in a first through slot in the illumination rod and located at the end opposite to the handle. The mounting ring is fixedly installed at the other end of the illumination rod located in the first through slot, and an external electrical ring is installed on the mounting ring. An internal electrical ring is fixedly installed on the mounting ring inside the external electrical ring. One end of the external and internal electrical rings is electrically connected to the power pin of the LED via a cable. The other ends of the external and internal electrical rings are electrically connected to a bridging component on the same side. A light-transmitting hole is provided at the end of the illumination rod located at the LED, and a transparent protective plate is embedded in the light-transmitting hole.

[0012] Preferably, the positioning component further includes a second mounting ring, a second external electrical ring, and a second internal electrical ring. The second mounting ring is fixedly installed on the end of the positioning rod away from the hollow bend, and the second external electrical ring is installed on the second mounting ring. The second internal electrical ring is fixedly installed on the inner side of the second external electrical ring on the second mounting ring. One end of the second external electrical ring and the second internal electrical ring are electrically connected to the power contact pin of the optical fiber guide strip through a cable, and the other end of the second external electrical ring and the second internal electrical ring are electrically connected to the bridging component on the same side.

[0013] Preferably, the power assembly includes a battery tray, a battery, a stepless regulator, a switch button, and a charging connector. The battery tray is embedded in the handle and located inside the battery compartment, and the battery is installed on the battery tray. Stepless regulators are fixedly installed at both ends of the battery tray, and the stepless regulators are electrically connected to the battery. Each stepless regulator is electrically connected to a switch button. The two switch buttons are embedded in a circular slot in the handle, and both switch buttons are electrically connected to a bridging component on the same side via cables. The charging connector is welded to the battery tray and is electrically connected to the battery via cables.

[0014] Preferably, the handle bar consists of two mating half-shells, and both ends of the two mating half-shells are provided with external threads and are connected into one piece by locking screw sleeves.

[0015] Preferably, both of the stepless regulators are electrically connected to adjustment knobs, and the two adjustment knobs are embedded in straight grooves opened in the handle rod, with the knobs of the adjustment knobs exposed through the straight grooves.

[0016] Preferably, the handle bar has a bracket slot and a mounting slot that are adapted to the battery bracket and charging connector, respectively.

[0017] Preferably, the bridging component includes a threaded connector, a first conductive post, and a second conductive post. The threaded connector is threaded into the handle rod and located outside the switch button. The first conductive post is embedded in the center of the threaded connector, and the second conductive post is embedded outside the first conductive post. Both the first and second conductive posts are electrically connected to the switch button via cables.

[0018] Preferably, the first conductive post and the second conductive post are Pogo pins.

[0019] Compared with related technologies, the fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment provided by this invention has the following advantages:

[0020] 1. This invention provides an optical fiber positioning marker pen for external repositioning surgery of retinal detachment in ophthalmology. By setting a power supply component in the handle, the power supply component is electrically connected to the light source component in the probe at one end through a bridging component and emits light. When the probe is explored through an indirect ophthalmoscope, it increases the external illumination of the sclera and makes bright spots appear on the surface of the retina, thereby facilitating the preliminary exploration of the retina and initially determining the approximate range of retinal detachment and the location of the retinal tear.

[0021] 2. By setting a positioning component at the other end of the handle, the positioning component emits light after being electrically connected to the power supply component via a fiber optic light guide strip, mounting ring II, external electrical ring II, internal electrical ring II, and positioning marker head through a bridging component. When marking the location of a retinal tear, the protruding part of the positioning marker head of the fiber optic positioning marker pen presses against the outside of the sclera, revealing a clear bright spot at the lesion location. This facilitates observation and clarification of the location of the retinal tear through an indirect ophthalmoscope. Then, the protruding part of the positioning marker head is used to mark the scleral indentation. Accurate positioning marks are made on the corresponding sclera at this location, and subsequent cryotherapy and external pressure surgery can be performed, which can significantly improve the success rate of the surgery.

[0022] 3. The handle, spotlight, and positioning rod are all detachable and can be connected separately. The spotlight and positioning components are electrically connected to the power supply components via bridging connectors. The handle consists of two mating half-shells connected together by locking screws. The overall structure is easy to disassemble and install, facilitating future maintenance and replacement of parts. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a preferred embodiment of the fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment provided by the present invention.

[0024] Figure 2 This is a schematic diagram of the fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment provided by the present invention from another perspective.

[0025] Figure 3 This is an exploded structural diagram of the fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment provided by the present invention.

[0026] Figure 4 for Figure 1 A schematic diagram of the internal structure of the grip bar is shown.

[0027] Figure 5 for Figure 3 A magnified view of part A shown;

[0028] Figure 6 for Figure 3 A magnified view of part B shown;

[0029] Figure 7 for Figure 3 A magnified view of C shown.

[0030] The diagram labels are as follows: 10. Handle bar; 101. Battery compartment; 102. Bracket slot; 103. Straight slot; 104. Round hole slot; 105. Mounting slot; 11. Locking nut; 20. Spotlight rod; 201. First through slot; 30. Positioning rod; 301. Second through slot; 31. Hollow elbow; 4. Spotlight assembly; 41. Light-emitting diode; 42. Mounting ring one; 43. External electric ring one; 44. Internal electric ring one; 45. Transparent protective plate; 5. Positioning components; 51. Fiber optic guide strip; 52. Mounting ring II; 53. External electrical ring II; 54. Internal electrical ring II; 55. Positioning head; 551. Protective lens; 552. Protrusion; 6. Power supply components; 61. Battery bracket; 62. Storage battery; 63. Stepless regulator; 631. Adjustment knob; 64. Switch button; 65. Charging connector; 7. Bridging component; 71. Threaded connector; 72. Conductive post I; 73. Conductive post II. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0032] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0033] Please see Figures 1 to 7 The present invention provides an optical fiber positioning marker pen for external approach repositioning surgery for retinal detachment. The optical fiber positioning marker pen for external approach repositioning surgery for retinal detachment includes: a handle 10, a probe 20, a positioning probe 30, a probe assembly 4, a positioning assembly 5, a power supply assembly 6, and a bridging component 7.

[0034] The handle 10 has a battery compartment 101 inside. The spotlight 20 is threaded onto one end of the handle 10, and the positioning rod 30 is threaded onto the other end of the handle 10. The end of the positioning rod 30 facing away from the handle 10 has a hollow elbow 31.

[0035] The searchlight assembly 4 is embedded in the first through slot 201 of the searchlight rod 20;

[0036] The positioning component 5 is embedded in the second through slot 301 of the positioning rod 30. The positioning component 5 includes an optical fiber guide strip 51 and a positioning head 55. The optical fiber guide strip 51 is embedded in the second through slot 301 and its front end extends into the hollow elbow 31. The positioning head 55 is threadedly installed on the bent front end of the hollow elbow 31. A transparent protective lens 551 is embedded at one end of the positioning head 55 facing the inside of the hollow elbow 31. A gear-shaped protrusion 552 is opened at the other end of the positioning head 55.

[0037] The power supply assembly 6 is embedded in the battery compartment 101, and both ends of the power supply assembly 6 are electrically connected to the bridging component 7. The two bridging components 7 are respectively installed at both ends of the handle rod 10 and electrically connected to the same side of the detection component 4 and the positioning component 5.

[0038] It should be noted that during use, the handle 10 is held by hand, and the retina is initially explored using the illuminator 4 on one side of the illuminator 20 to preliminarily determine the approximate extent of retinal detachment and the location of the retinal tear. Then, the positioning rod 30 on the other end is switched to mark the location. The power supply 6 powers the fiber optic light guide strip 51, causing it to emit light. The beam is emitted from the hollow bend 31. The positioning tip 55 of the fiber optic positioning marker is used to press against the sclera, revealing a bright spot at the lesion location. This facilitates observation and clarification of the retinal tear location through an indirect ophthalmoscope. Then, the protrusion 552 of the positioning tip 55 is used to mark the scleral indentation, thus accurately marking the location on the corresponding sclera. Subsequent cryotherapy and external pressure surgery can be performed, significantly improving the success rate of the surgery.

[0039] It should also be noted that the fiber optic catheter here uses a 630-650nm semiconductor laser beam strip, emitting stable red light that can penetrate the sclera to produce a clear light spot, increasing visibility during fundus examination and facilitating detection and positioning. The hollow elbow 31 has an elbow angle between 90° and 150°, and various models are available with increasing bend angles in 10° increments, from a vertical 90° to a large 150° bend. This allows for flexibility in clinical practice, adapting to different doctors' grip habits and the specific needs of different patients with retinal detachment. The positioning pen can be flexibly selected from hollow elbows 31 with different curvatures. The positioning rod 30 is used for tilting and pressing, and the positioning head 55 is used for positioning and marking. The positioning head 55 is detachably connected to the hollow elbow 31 through a threaded structure, which makes it easy to remove the positioning head 55 from the hollow elbow 31 for sterilization after use. When it is installed on the hollow elbow 31, the internal components of the hollow elbow 31 are sealed and protected by a transparent protective lens 551 to prevent dust and liquid impurities from entering the interior, which facilitates the overall pre- and post-operative sterilization of the positioning marker.

[0040] The outer wall of the handle 10 is provided with anti-slip texture to increase friction and make it easier to hold.

[0041] In an embodiment of the present invention, please refer to Figure 1 , Figure 3 and Figure 5 The searchlight assembly 4 includes a light-emitting diode 41, a mounting ring 42, an external electrical ring 43, an internal electrical ring 44, and a transparent protective plate 45. The light-emitting diode 41 is embedded in the first through slot 201 of the searchlight rod 20 and is located at one end away from the handle rod 10. The mounting ring 42 is fixedly installed at the other end of the searchlight rod 20 located in the first through slot 201, and an external electrical ring 43 is installed on the mounting ring 42. An internal electrical ring 44 is fixedly installed on the mounting ring 42 inside the external electrical ring 43. One end of the external electrical ring 43 and the internal electrical ring 44 are electrically connected to the power pin of the light-emitting diode 41 through a cable. The other end of the external electrical ring 43 and the internal electrical ring 44 are electrically connected to the bridging component 7 on the same side. A light-transmitting hole is opened at one end of the searchlight rod 20 located at the light-emitting diode 41, and a transparent protective plate 45 is embedded in the light-transmitting hole.

[0042] It should be noted that when the searchlight assembly 4 is installed and used, after the searchlight rod 20 is threadedly connected to the handle rod 10, the light-emitting diode 41 is electrically connected to the outer electric ring 43 and the inner electric ring 44 on the mounting ring 42 via a cable and then to the bridge component 7. After being electrically connected to the power supply assembly 6, the light-emitting diode 41 emits light and shines out from the light-transmitting hole opened at one end of the hollow elbow 31. The whole assembly is electrically connected through the bridge component 7, which facilitates the installation and disassembly of the searchlight rod 20 and the handle rod 10, and facilitates the replacement and maintenance of damaged parts in the future.

[0043] In an embodiment of the present invention, please refer to Figure 2 , Figure 3 and Figure 4 The positioning component 5 includes a second mounting ring 52, an outer electrical ring 53, and an inner electrical ring 54. The second mounting ring 52 is fixedly mounted on one end of the positioning rod 30 away from the hollow elbow 31. The second mounting ring 52 is equipped with an outer electrical ring 53. The second mounting ring 52 is fixedly mounted on the inner side of the outer electrical ring 53. One end of the outer electrical ring 53 and the inner electrical ring 54 are electrically connected to the power pin of the optical fiber guide strip 51 through a cable. The other end of the outer electrical ring 53 and the inner electrical ring 54 are electrically connected to the bridging component 7 on the same side.

[0044] It should be noted that after the positioning rod 30 is threaded onto the other end of the handle rod 10, the positioning component 5 is electrically connected to the external electrical ring 53 and the internal electrical ring 54 on the mounting ring 52 via a cable. Similarly, it is electrically connected to the power supply component 6 via the bridging component 7 at this end of the handle rod 10, and then supplies power to the fiber optic guide strip 51 to emit a beam of light for positioning. This facilitates the disassembly and installation of the overall positioning rod 30 and positioning component 5 with the handle rod 10, and makes it easier to perform maintenance and replacement of parts later.

[0045] In an embodiment of the present invention, please refer to Figure 1 and Figure 4 The power assembly 6 includes a battery bracket 61, a battery 62, a stepless regulator 63, a switch button 64, and a charging connector 65. The battery bracket 61 is embedded in the handle bar 10 and located in the battery compartment 101. The battery 62 is installed on the battery bracket 61. Stepless regulators 63 are fixedly installed at both ends of the battery bracket 61 and the stepless regulators 63 are electrically connected to the battery 62. The two stepless regulators 63 are electrically connected to the switch button 64. The two switch buttons 64 are embedded in the circular slots 104 opened in the handle bar 10. The two switch buttons 64 are electrically connected to the bridge component 7 on the same side through cables. The charging connector 65 is welded to the battery bracket 61 and is electrically connected to the battery 62 through cables.

[0046] The two stepless regulators 63 are electrically connected to adjustment knobs 631. The two adjustment knobs 631 are embedded in the straight grooves 103 of the handle 10, and the knobs of the adjustment knobs 631 are exposed through the straight grooves 103. The handle 10 has bracket grooves 102 and mounting grooves 105 that are adapted to the battery bracket 61 and the charging connector 65, respectively.

[0047] It should be noted that the battery 62 of the power supply assembly 6 is installed in the battery compartment 101 using the battery bracket 61. The battery 62 then provides power to the illumination assembly 4 and the positioning assembly 5. The on and off of the illumination assembly 4 and the positioning assembly 5 are controlled by the switch button 64 on the user end. The light emission power of the corresponding light-emitting diode 41 and the optical fiber light guide strip 51 can be adjusted by the adjustment knob 631 of the stepless regulator 63, thereby adjusting the brightness of the illumination light. While meeting the needs of fundus illumination exploration and retinal tear localization as much as possible, the power is reduced as much as possible to minimize the damage of strong light to the retina. When the battery 62 is low on power, it can be replenished by connecting an external charger through the charging connector 65.

[0048] It should also be noted that the switch button 64 and the stepless regulator 63 are commonly used control circuit disconnection actuators in the prior art. Their specific structure and principle will not be described in detail here.

[0049] In this embodiment, the handle rod 10 is composed of two mating half-shells, and both ends of the two mating half-shells are provided with external threads. They are connected into one piece by locking nut 11. This makes it easy for the power supply assembly 6 to be inside the half-shell, and then the other half-shell is closed. By turning the locking nut 11, the two half-shells are locked into one piece, which is very convenient for disassembly and assembly.

[0050] In the embodiments of the present invention, please refer to Figure 1 , Figure 5 and Figure 6 The bridging component 7 includes a threaded connector 71, a first conductive post 72, and a second conductive post 73. The threaded connector 71 is threaded into the handle rod 10 and located on the outside of the switch button 64. The first conductive post 72 is embedded in the center of the threaded connector 71, and the second conductive post 73 is embedded on the outside of the first conductive post 72. Both the first conductive post 72 and the second conductive post 73 are electrically connected to the switch button 64 via cables.

[0051] It should be noted that when the bridging component 7 is used, it is threadedly installed on both ends of the battery compartment 101 inside the handle rod 10 through the threaded connector 71. Then, the first conductive post 72 and the second conductive post 73 are connected to the circuit of the power supply component 6. When the probe rod 20 is screwed into the handle rod 10, the outer electrical ring 43 of the probe component 4 is electrically connected to the second conductive post 73 of the bridging component 7 at this end, and the inner electrical ring 44 is electrically connected to the second conductive post 73, thereby realizing the electrical connection between the probe component 4 and the power supply component 6. Similarly, when the positioning rod 30 is screwed into the handle rod 10, it is electrically connected to the inner electrical ring 54 and the outer electrical ring 53 of the positioning component 5 through the first conductive post 72 and the second conductive post 73 of the bridging component 7 at this end.

[0052] In this embodiment, conductive post 72 and conductive post 73 are Pogo pins, which are spring-loaded probes formed by riveting and pre-pressing three basic components—a shaft, a spring, and a needle tube—using precision instruments. They contain a precision spring structure. Stable and precise electrical connection can be achieved during screwing and compression.

[0053] The working principle of the fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment provided by this invention is as follows:

[0054] During installation, the handle rod 10 is fixed as a single unit by the mating half-shells through locking screws 11, facilitating the embedding of the power supply assembly 6 into the battery compartment 101. The light-emitting diode 41 of the illumination assembly 4 is electrically connected via cables to the external electrical ring 43 and the internal electrical ring 44 on the mounting ring 42. When the illumination rod 20 is screwed into one end of the handle rod 10, the external electrical ring 43 of the illumination assembly 4 makes contact with the conductive post 73 of the bridging component 7 at that end, and the internal electrical ring 44 makes contact with the conductive post 73, thereby achieving contact electrical connection between the illumination assembly 4 and the power supply assembly 6. When the positioning rod 30 is screwed into the other end of the grip rod 10, the optical fiber guide strip 51 of the positioning component 5 is electrically connected to the inner electric ring 54 and the outer electric ring 53 of the positioning component 5 through the conductive post 72 and the conductive post 73 of the bridging component 7 at that end, thereby realizing the electrical connection of the entire circuit. When disassembling, it is only necessary to turn the probe rod 20 and the positioning rod 30 in the opposite direction to remove them from the grip rod 10 for inspection and replacement. Then, turn the locking nut 11 in the opposite direction to release the locking state of the grip rod 10, and the grip rod 10 can be opened to inspect and replace the power component 6 inside the battery compartment 101.

[0055] In use, hold the handle 10 and align the detection component 4 on one side of the detection rod 20 with the retina. Then, turn on the switch button 64 on the side of the detection component 4 to activate the light-emitting diode 41. Adjust the light output of the light-emitting diode 41 using the adjustment knob 631 of the stepless adjuster 63 on the same side to adjust the appropriate light intensity for retinal illumination and probing. This will help to initially determine the extent of retinal detachment and the approximate location of the retinal tear. Then, turn the positioning rod 30 around and turn on the switch button 64 at that end to power the fiber optic light guide strip 51. The fiber optic light guide strip 51 emits a beam of light from the hollow bend 31. Use the positioning mark 55 of the fiber optic positioning marker pen to press against the outside of the sclera, revealing a bright spot at the lesion location. This facilitates observation through an indirect ophthalmoscope to pinpoint the exact location of the retinal tear. Then, use the protrusion 552 of the positioning mark 55 to mark the scleral indentation, thus accurately positioning the sclera at the corresponding location. Subsequent cryotherapy and external pressure surgery can be performed, significantly improving the success rate of the surgery.

[0056] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0057] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A fiber optic positioning marker for external approach retinal detachment repositioning surgery, comprising: The handle (10) has a battery compartment (101) inside; A searchlight rod (20) is threaded onto one end of the handle rod (10); A positioning rod (30) is threaded onto the other end of the handle rod (10), and a hollow elbow (31) is provided at the end of the positioning rod (30) away from the handle rod (10); Its characteristic is that it further includes: The illumination assembly (4) is embedded in the first through slot (201) of the illumination rod (20); The positioning component (5) is embedded in the second through slot (301) of the positioning rod (30), and the positioning component (5) includes an optical fiber guide strip (51) and a positioning head (55). The optical fiber guide strip (51) is embedded in the second through slot (301), and its front end extends into the hollow elbow (31). The positioning head (55) is threaded onto the bent front end of the hollow elbow (31), and a transparent protective lens (551) is embedded at one end of the positioning head (55) facing the inside of the hollow elbow (31). A gear-shaped protrusion (552) is opened at the other end of the positioning head (55). The power supply assembly (6) is embedded in the battery compartment (101), and both ends of the power supply assembly (6) are electrically connected to the bridging component (7). The two bridging components (7) are respectively installed at both ends of the handle bar (10) and electrically connected to the same side of the detection assembly (4) and the positioning assembly (5).

2. The fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment as described in claim 1, characterized in that, The outer wall of the grip bar (10) is provided with anti-slip texture.

3. The fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment as described in claim 1, characterized in that, The illumination assembly (4) includes a light-emitting diode (41), a mounting ring (42), an external electrical ring (43), an internal electrical ring (44), and a transparent protective plate (45). The light-emitting diode (41) is embedded in the first through slot (201) of the illumination rod (20) and located at one end away from the handle rod (10). The mounting ring (42) is fixedly installed at the other end of the illumination rod (20) located in the first through slot (201), and the external electrical ring is installed on the mounting ring (42). (43) An inner electric ring (44) is fixedly installed on the inner side of the outer electric ring (43) on the mounting ring (42). One end of the outer electric ring (43) and the inner electric ring (44) are electrically connected to the power pin of the light-emitting diode (41) through a cable. The other end of the outer electric ring (43) and the inner electric ring (44) are electrically connected to the bridge component (7) on the same side. The probe (20) has a light-transmitting hole at one end of the light-emitting diode (41), and a transparent protective plate (45) is embedded in the light-transmitting hole.

4. The fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment as described in claim 1, characterized in that, The positioning component (5) includes a second mounting ring (52), an external electrical ring (53), and an internal electrical ring (54). The second mounting ring (52) is fixedly mounted on one end of the positioning rod (30) away from the hollow elbow (31). An external electrical ring (53) is mounted on the second mounting ring (52). An internal electrical ring (54) is fixedly mounted on the second mounting ring (52) inside the external electrical ring (53). One end of the external electrical ring (53) and the internal electrical ring (54) are electrically connected to the power pin of the optical fiber guide strip (51) via a cable. The other end of the external electrical ring (53) and the internal electrical ring (54) are electrically connected to the bridging component (7) on the same side.

5. The fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment as described in claim 1, characterized in that, The power supply assembly (6) includes a battery holder (61), a battery (62), a stepless regulator (63), a switch button (64), and a charging connector (65). The battery holder (61) is embedded in the handle bar (10) and located inside the battery compartment (101). The battery holder (61) is equipped with the battery (62). Stepless regulators (63) are fixedly installed at both ends of the battery holder (61) and the stepless regulators (63) are fixedly installed at both ends of the battery (62). The regulator (63) is electrically connected to the battery (62), and both stepless regulators (63) are electrically connected to a switch button (64). The two switch buttons (64) are embedded in the round hole slot (104) opened in the handle rod (10), and both switch buttons (64) are electrically connected to the bridge component (7) on the same side through a cable. The charging connector (65) is welded to the battery bracket (61) and electrically connected to the battery (62) through a cable.

6. The fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment as described in claim 5, characterized in that, The handle rod (10) consists of two mating half-shells, and both ends of the two mating half-shells are provided with external threads and are connected as one unit by a locking nut (11).

7. The fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment as described in claim 5, characterized in that, Both of the stepless regulators (63) are electrically connected to adjustment knobs (631). The two adjustment knobs (631) are embedded in the straight grooves (103) opened in the handle rod (10), and the knobs of the adjustment knobs (631) are exposed through the straight grooves (103).

8. The fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment as described in claim 5, characterized in that, The handle bar (10) has a bracket slot (102) and a mounting slot (105) that are adapted to the battery bracket (61) and the charging connector (65), respectively.

9. The fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment as described in claim 5, characterized in that, The bridging component (7) includes a threaded connector (71), a first conductive post (72), and a second conductive post (73). The threaded connector (71) is threaded into the handle rod (10) and located outside the switch button (64). The first conductive post (72) is embedded in the center of the threaded connector (71), and the second conductive post (73) is embedded outside the first conductive post (72). The first conductive post (72) and the second conductive post (73) are both electrically connected to the switch button (64) via cables.

10. The fiber optic positioning marker pen for external approach repositioning surgery for retinal detachment as described in claim 9, characterized in that, The first conductive post (72) and the second conductive post (73) are Pogo pin spring pins.

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