Intraocular laser fiber with continuously adjustable probe angle and integrated illumination

Abstract

The application relates to the technical field of biomedical engineering industry, in particular to an intraocular laser optical fiber with continuously adjustable probe angle and integrated illumination. The application comprises a connecting belt, the connecting belt is provided with a connecting frame, the connecting frame is rotationally connected with a rotating ring, the rotating ring is fixedly connected with a limiting frame, the limiting frame is slidably connected with a handle, the handle is rotationally connected with a probe, the handle is provided with a fiber core, the probe is provided with an illumination head, and the handle is fixedly connected with a traction wire through a pull ring. The application can stably guide the handle, rotate and overturn the handle, and pull the probe to overturn through the traction wire, so that the position of the fiber core and the illumination head on the probe is stably adjusted to align the patient's eye, the distance between the fiber core and different treatment positions of the patient's eye is stably adjusted, the probability of inaccurate observation and inclined direct laser caused by the remote treatment position of the eye tissue is reduced, the risk of eye surgery is reduced, and the safety of the treatment of the patient's eye is improved.

Description

Technical Field

[0001] This invention relates to the field of biomedical engineering technology, and in particular to an intraocular laser fiber with continuously adjustable probe angle and integrated illumination. Background Technology

[0002] In ophthalmic laser treatments, procedures such as retinal photocoagulation and glaucoma ciliary body photocoagulation typically require projecting the treatment laser from outside the eye non-contactly onto the target tissue in the fundus. This type of non-contact laser treatment places high demands on the precise control of the laser emission angle, the synchronous coverage of the illumination field, and the stability of the spot positioning. Especially when treating areas such as the peripheral retina, the equatorial region, and the ciliary body, it is necessary to accurately irradiate the target location at an appropriate angle within a limited operating space, while avoiding damage to the lens, cornea, and normal retinal tissue.

[0003] In clinical applications, when it is necessary to treat the retina or ciliary body in different locations of the eye, it is often necessary to find the appropriate irradiation angle by adjusting the patient's head position, rotating the eyeball, and changing the angle of the optical fiber. This operation method is not only difficult, but also carries the risk of creating blind spots in the field of vision. Especially when treating the edge of the eyeball, the treatment position is located in a blind spot. During the process of adjusting the laser emission position, it is very easy to cause inaccurate observation and deviation of the direct laser, which in turn affects the safety of the patient's treatment. Summary of the Invention

[0004] To overcome the shortcomings mentioned in the background art, the present invention provides an intraocular laser fiber with continuously adjustable probe angle and integrated illumination.

[0005] The technical solution is as follows: an intraocular laser fiber with continuously adjustable probe angle and integrated illumination, comprising a connecting strip, a connecting frame mounted on the connecting strip, a rotating ring rotatably connected to the connecting frame, a limiting frame fixedly connected to the rotating ring, a handle slidably connected to the limiting frame, a probe rotatably connected to the handle, a corrugated sleeve fixedly connected between the handle and the probe, a fiber core shared by the handle and the probe, symmetrically distributed illumination heads mounted on the probe, two pull rings slidably connected to the handle, symmetrically distributed rotating wheels rotatably connected to the limiting frame, and a traction wire that passes over adjacent rotating wheels fixedly connected between the pull rings and the probe.

[0006] To further explain, a resistance block is fixedly connected between the pull ring and the handle.

[0007] To further explain, the connecting frame is provided with centrally symmetrically distributed limiting grooves, and the rotating ring is fixedly connected with symmetrically distributed limiting pins, which slide within adjacent limiting grooves.

[0008] To further explain, the projection of the limiting groove in the horizontal direction is V-shaped.

[0009] To further explain, the handle is equipped with a liquid bladder, and the liquid bladder is provided with a conduit that passes through the corrugated sleeve and the probe.

[0010] To further explain, the catheter on the liquid bladder is provided with a flared opening at the end near the probe, and the inner diameter of the flared opening gradually increases from the point near the handle to the point away from it.

[0011] To further explain, the connecting frame is rotatably connected to a centrally symmetrically distributed threaded rod, the threaded rod is threadedly connected to a sleeve that is slidably connected to the connecting frame, and the sleeve is hinged to an elastic frame.

[0012] To further explain, a torsion spring is fixedly connected between the elastic frame and the adjacent sleeve.

[0013] To further explain, the elastic frame is fixedly connected to symmetrically distributed connecting blocks, and the connecting blocks are rotatably connected to symmetrically distributed rotating shafts. The rotating shafts symmetrically distributed on the same connecting block are together wound with an elastic band. At least one of the rotating shafts on the same connecting block is provided with a knob, and the knob is provided with a locking element.

[0014] To further explain, the surface of the elastic band is provided with flexible strips to increase the surface friction of the elastic band.

[0015] Compared with existing technologies, this invention has the following advantages: This invention stabilizes and guides the handle, allowing it to rotate and flip. A traction wire pulls the probe to flip, thus stabilizing the alignment of the fiber core and illumination head on the probe with the patient's eye. This stabilizes the distance between the fiber core and different treatment positions on the patient's eye, reducing the probability of inaccurate observation and direct laser deviation due to remote treatment locations. This lowers the risk of eye surgery and improves the safety of eye treatment. When the treatment position on the patient's eyeball is close to the inner or outer corner, a limiting groove guides the limiting pin, causing the fiber core and illumination head to automatically move closer to the treatment site during rotation and alignment, ensuring the optimal distance between the fiber core and the treatment area and improving the stability of the treatment. Squeezing the liquid sac allows the balanced salt solution to pass through the sac. The catheter is drained to the funnel-shaped opening, which depressurizes the drained balanced salt solution and increases the area of ​​the eye covered by the solution. The depressurized solution is then drained and used to cleanse the patient's eye, maintaining intraocular pressure, flushing out blood and debris, maintaining the clarity of the surgical field, and improving the safety of the eye surgery. The torsion springs between the elastic frame and adjacent sleeves cause the two frames to move in opposite directions, thus tending to open the patient's eyelids and ensuring the stability of the eyelid position during treatment. Simultaneously, the elastic band and its flexible strips are used to gently rub and move the patient's eyelids, reducing the probability of eyelid injury caused by the rigid eyelid opener, thus improving the patient's comfort and safety during surgery. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the handle, probe, and corrugated sleeve of the present invention; Figure 3 This is a three-dimensional structural diagram of the limiting frame of the present invention; Figure 4 This is a three-dimensional structural diagram of the rotating wheel and traction wire of the present invention; Figure 5 This is an exploded three-dimensional view of the connecting frame and rotating ring of the present invention; Figure 6 This is a three-dimensional structural diagram of the knob of the present invention.

[0017] The meanings of the reference numerals in the diagram are as follows: 1-Connecting belt, 2-Connecting frame, 201-Limiting groove, 3-Rotating ring, 301-Limiting pin, 4-Limiting frame, 5-Handle, 6-Probe, 7-Corrugated sleeve, 8-Fiber core, 9-Illumination head, 10-Pull ring, 11-Rotating wheel, 12-Traction wire, 13-Resistance block, 14-Liquid bladder, 15-Flare mouth, 16-Threaded rod, 17-Sleeve, 18-Elastic frame, 19-Connecting block, 20-Rotating shaft, 21-Elastic belt, 22-Knob. Detailed Implementation

[0018] The preferred technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Example 1

[0020] Intraocular laser fiber with continuously adjustable probe angle and integrated illumination, such as Figures 1-5 As shown, it includes a connecting belt 1, a connecting frame 2 mounted on the connecting belt 1, a rotating ring 3 rotatably connected to the connecting frame 2, a centrally symmetrically distributed limiting groove 201 on the connecting frame 2, a symmetrically distributed limiting pin 301 fixedly connected to the rotating ring 3, the limiting pin 301 sliding within adjacent limiting grooves 201, the projection of the limiting grooves 201 in the horizontal direction being V-shaped, a limiting frame 4 fixedly connected to the rotating ring 3, a handle 5 slidably connected to the limiting frame 4, a probe 6 rotatably connected to the handle 5, a corrugated sleeve 7 fixedly connected between the handle 5 and the probe 6, a fiber core 8 shared within the handle 5 and the probe 6, a symmetrically distributed illumination head 9 mounted on the probe 6, two pull rings 10 slidably connected to the handle 5, symmetrically distributed rotating wheels 11 rotatably connected to the limiting frame 4, a traction wire 12 fixedly connected between the pull rings 10 and the probe 6, passing over adjacent rotating wheels 11, and a resistance block 13 fixedly connected between the pull rings 10 and the handle 5.

[0021] Furthermore, the connecting strap 1 is a strap-like structure worn on the patient's head, used to stabilize the connecting frame 2.

[0022] Furthermore, the position of the handle 5 is stabilized by the connecting frame 2, the rotating ring 3 and the limiting frame 4. The handle 5 is used by the doctor to hold it so as to operate the slender fiber core 8.

[0023] Furthermore, the limiting frame 4 is provided with symmetrically distributed arc-shaped grooves for guiding the handle 5 to adjust the flip angle of the handle 5, so that the fiber core 8 and the illumination head 9 on the probe 6 are aligned with different treatment positions of the patient's eye.

[0024] Furthermore, the probe 6 can be made of medical-grade stainless steel to stabilize the fiber core 8, the corrugated sleeve 7 can be made of medical-grade elastic material (such as silicone rubber), the fiber core 8 is used to transmit laser energy, the left end of the fiber core 8 is connected to an external laser source, and the right end of the fiber core 8 is used to guide the laser into the eye to treat the patient's eyeball.

[0025] Furthermore, the illumination heads 9 are arranged in two symmetrically distributed vertically, with the right end of the fiber core 8 located between the two illumination heads 9. The illumination heads 9 are miniature LED lights or fiber optic light guides.

[0026] Furthermore, initially, the traction wire 12 is taut. There are two pull rings 10, one above the other. By pulling the pull ring 10 to the left, the corresponding traction wire 12 moves to the left. The rotating wheel 11 is used to guide the corresponding traction wire 12. Taking the upper traction wire 12 as an example, the upper traction wire 12 causes the probe 6 to flip upward, the corrugated sleeve 7 deforms, and the probe 6 moves to the right through the lower traction wire 12 and the lower pull ring 10. By pulling the pull ring 10, the flip angle of the probe 6 is changed so that the fiber core 8 and the illumination head 9 on the probe 6 are aligned with different treatment positions on the patient's eye.

[0027] Furthermore, by rotating the handle 5, the limiting frame 4 and the rotating ring 3 rotate relative to the connecting frame 2, adjusting the position of the fiber core 8 and the illumination head 9 on the probe 6 to align with the patient's eye. By stabilizing and guiding the handle 5, the handle 5 rotates and flips, and the traction wire 12 pulls the probe 6 to flip, thereby stabilizing and adjusting the position of the fiber core 8 and the illumination head 9 on the probe 6 to align with the patient's eye. This stabilizes the distance between the fiber core 8 and different treatment positions on the patient's eye, reducing the probability of inaccurate observation and direct laser deviation due to remote treatment positions, thus reducing the risk of eye surgery and improving the safety of eye treatment for the patient.

[0028] Furthermore, when the rotating ring 3 rotates relative to the connecting frame 2, the rotating ring 3 drives the limiting pin 301 to rotate. The limiting pin 301 is guided by the limiting groove 201 with a V-shaped projection, so that the limiting pin 301 moves to the right when rotating. This causes the rotating ring 3 to drive the handle 5 to move towards the patient's eyeball through the limiting frame 4. The fiber core 8 and the illumination head 9 on the probe 6 also move towards the patient's eyeball. When the treatment position of the patient's eyeball is close to the inner and outer corners of the eye, the fiber core 8 and the illumination head 9 automatically move closer to the treatment site during the rotation alignment process to ensure the optimal distance between the fiber core 8 and the treatment and improve the stability of the patient's treatment.

[0029] Furthermore, the resistance block 13 is made of elastic material. When the pull ring 10 is moved, the resistance block 13 applies resistance to the movement of the pull ring 10, causing the pull ring 10 to move slowly, thereby improving the accuracy of the movement distance of the pull ring 10, thus maintaining the stability of the angle adjustment of the probe 6 and improving the safety of the patient's eye treatment.

[0030] Example 2

[0031] Based on Example 1, such as Figures 2-4 As shown, a liquid bladder 14 is installed on the handle 5. The liquid bladder 14 is provided with a conduit that passes through the corrugated sleeve 7 and the probe 6. A flared mouth 15 is provided on the end of the conduit on the liquid bladder 14 near the probe 6. The inner diameter of the flared mouth 15 gradually increases from the point near the handle 5 to the point far away.

[0032] Furthermore, the probe 6 can be configured as two tubes distributed front and back, with the two tubes of the probe 6 located on the front and back sides of the fiber core 8 respectively.

[0033] Furthermore, the sac 14 contains a balanced salt solution. During the operation, by squeezing the sac 14, the balanced salt solution is discharged through the catheter of the sac 14 to the flared end 15. The gradually increasing inner diameter of the flared end 15 from left to right depressurizes the balanced salt solution discharged from the flared end 15 and increases the area of ​​the eye covered by the balanced salt solution. The depressurized balanced salt solution is discharged and used to clean the patient's eye, in order to maintain the patient's intraocular pressure, flush out blood and debris, maintain the clarity of the surgical field, and improve the safety of the eye surgery.

[0034] Example 3

[0035] Based on Example 2, such as Figure 4 and Figure 6 As shown, the connecting frame 2 is rotatably connected to a centrally symmetrically distributed threaded rod 16. The threaded rod 16 is threadedly connected to a sleeve 17 that is slidably connected to the connecting frame 2. The sleeve 17 is hinged to an elastic frame 18. A torsion spring is fixed between the elastic frame 18 and the adjacent sleeve 17.

[0036] like Figure 6 As shown, the elastic frame 18 is fixed with symmetrically distributed connecting blocks 19, and the connecting blocks 19 are rotatably connected with symmetrically distributed rotating shafts 20. The symmetrically distributed rotating shafts 20 on the same connecting block 19 are all wound with an elastic band 21. The surface of the elastic band 21 is provided with flexible strips to increase the surface friction of the elastic band 21. At least one rotating shaft 20 on the same connecting block 19 is provided with a knob 22, and the knob 22 is provided with a locking element.

[0037] Furthermore, two elastic frames 18 are used to support the upper and lower positions of the patient's eyes respectively, thereby ensuring the stability of the fiber core 8 and the illumination head 9 during the patient's surgery.

[0038] Furthermore, there are two threaded rods 16 distributed vertically. By rotating the threaded rods 16, the position of the sleeve 17 can be adjusted, thereby changing the position of the elastic frame 18 to adapt to the facial shapes of different patients and improve the adaptability of the device.

[0039] Furthermore, such as Figure 6As shown, the position of the elastic frame 18 is in its initial state. When treatment is required, the elastic frame 18 is flipped so that the two elastic frames 18 move towards each other. The torsion spring between the elastic frame 18 and the adjacent sleeve 17 stores torque. Then, the elastic frame 18 is placed close to the upper and lower positions of the patient's eyes. After the connecting strap 1 is worn on the patient's head, the two elastic frames 18 are released. The torsion spring between the elastic frame 18 and the adjacent sleeve 17 rebounds, causing the two elastic frames 18 to tend to move in opposite directions, thereby keeping the patient's eyes open and ensuring the stability of the eyelid position during the treatment.

[0040] Furthermore, the knob 22 drives the corresponding rotating shaft 20 to rotate, which in turn drives the elastic band 21 to rotate, causing the two rotating shafts 20 on the elastic band 21 to rotate together. The elastic band 21 and its flexible strip rub the patient's eyelids to move. Subsequently, the locking mechanism of the knob 22 limits the rotating shaft 20 (the locking mechanism can be an existing pin structure or ratchet structure, and a protective cover can be placed on the outside of the locking mechanism to reduce the risk of the locking mechanism scratching the skin). Utilizing the high friction of the flexible strip, the patient's eyelids are moved in a gentle rubbing manner, reducing the probability of existing rigid eyelid openers squeezing the patient's eyes and causing eyelid damage, and improving the patient's comfort and safety during the operation.

[0041] The above are merely embodiments of the present invention and do 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, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An intraocular laser fiber with continuously adjustable probe angle and integrated illumination, characterized in that, It includes a connecting belt (1), a connecting frame (2) installed on the connecting belt (1), a rotating ring (3) rotatably connected to the connecting frame (2), a limiting frame (4) fixedly connected to the rotating ring (3), a handle (5) slidably connected to the limiting frame (4), a probe (6) rotatably connected to the handle (5), a corrugated sleeve (7) fixedly connected between the handle (5) and the probe (6), a fiber core (8) is provided in both the handle (5) and the probe (6), a symmetrically distributed illumination head (9) is installed on the probe (6), two pull rings (10) are slidably connected to the handle (5), symmetrically distributed rotating wheels (11) are rotatably connected to the limiting frame (4), and a traction wire (12) that passes around the adjacent rotating wheel (11) is fixedly connected between the pull ring (10) and the probe (6).

2. The intraocular laser fiber with continuously adjustable probe angle and integrated illumination according to claim 1, characterized in that, A resistance block (13) is fixed between the pull ring (10) and the handle (5).

3. The intraocular laser fiber with continuously adjustable probe angle and integrated illumination according to claim 1, characterized in that, The connecting frame (2) is provided with centrally symmetrically distributed limiting grooves (201), and the rotating ring (3) is fixed with symmetrically distributed limiting pins (301), and the limiting pins (301) slide within adjacent limiting grooves (201).

4. The intraocular laser fiber with continuously adjustable probe angle and integrated illumination according to claim 3, characterized in that, The projection of the limiting groove (201) in the horizontal direction is V-shaped.

5. The intraocular laser fiber with continuously adjustable probe angle and integrated illumination according to claim 1, characterized in that, The handle (5) is equipped with a liquid bladder (14), which is provided with a conduit passing through the corrugated sleeve (7) and the probe (6).

6. The intraocular laser fiber with continuously adjustable probe angle and integrated illumination according to claim 5, characterized in that, The catheter on the liquid sac (14) is provided with a flared mouth (15) at the end near the probe (6), and the inner diameter of the flared mouth (15) gradually increases from the point near the handle (5) to the point far away.

7. The intraocular laser fiber with continuously adjustable probe angle and integrated illumination according to claim 1, characterized in that, The connecting frame (2) is rotatably connected to a centrally symmetrically distributed threaded rod (16), the threaded rod (16) is threadedly connected to a sleeve (17) that is slidably connected to the connecting frame (2), and the sleeve (17) is hinged to an elastic frame (18).

8. The intraocular laser fiber with continuously adjustable probe angle and integrated illumination according to claim 7, characterized in that, A torsion spring is fixed between the elastic frame (18) and the adjacent sleeve (17).

9. The intraocular laser fiber with continuously adjustable probe angle and integrated illumination according to claim 8, characterized in that, The elastic frame (18) is fixed with symmetrically distributed connecting blocks (19), and the connecting blocks (19) are rotatably connected with symmetrically distributed rotating shafts (20). The rotating shafts (20) symmetrically distributed on the same connecting block (19) are together wound with an elastic band (21). At least one of the rotating shafts (20) on the same connecting block (19) is provided with a knob (22), and the knob (22) is provided with a locking element.

10. The intraocular laser fiber with continuously adjustable probe angle and integrated illumination according to claim 9, characterized in that, The surface of the elastic band (21) is provided with flexible strips to increase the surface friction of the elastic band (21).

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