Auxiliary device for flushing lacrimal passage

By designing an inner cone-shaped light-focusing device and an arc-shaped light-shielding plate to adjust the light, the problem of strong light stimulation during lacrimal duct irrigation was solved, improving operational efficiency and patient comfort, and enhancing grip reliability.

CN223555184UActive Publication Date: 2025-11-18TIANJIN MEDICAL UNIVERSITY EYE HOSPITAL
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Patent Information

Application Number
CN202422700246.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-11-18
Estimated Expiration
2034-11-06

AI Technical Summary

Technical Problem

Existing lacrimal duct irrigation devices, when using LED lights, can cause strong light stimulation to the patient's eyes by direct light, causing the patient to close their eyes, increasing the difficulty of inserting the irrigation device, and resulting in low operating efficiency.

Method used

A lacrimal duct irrigation auxiliary device was designed, comprising a connecting clamp, a support ring, and an adjustment ring. It utilizes LED beads on the inner conical surface to focus light and an arc-shaped light shield to adjust the light, combined with a magnifying lens to improve the observation effect, and enhances the ease of operation through a limiting structure and a grip design.

Benefits of technology

It effectively avoids strong light stimulation, improves the ease of operation for medical staff and the comfort of patients, and enhances the observation of the tear punctum and the grip reliability of the irrigator.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a lacrimal passage flushing auxiliary device. The lacrimal passage flushing auxiliary device comprises a connecting clamp, a bearing ring and an adjusting ring. The lacrimal passage flusher is detachably sleeved with the connecting clamp, the bearing ring is arranged on the outer side wall of the connecting clamp in an angle-adjustable mode, and a magnifying lens is arranged in the bearing ring. A connecting ring is arranged on the bottom face of the bearing ring, an inner conical face is arranged on the bottom face of the connecting ring, and a plurality of LED lamp beads are arranged on the inner conical face. The adjusting ring is rotatably arranged on the connecting ring in a sleeving mode, and an arc-shaped anti-dazzling screen is arranged on the bottom face of the adjusting ring and located below the bottom face of the connecting ring. The auxiliary lacrimal passage flushing device can prevent the eyes of a patient from being directly irradiated by light rays, and the convenience of medical staff for flushing the lacrimal passage is improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical equipment auxiliary supplies, especially a kind of lacrimal passage flushing auxiliary device. BACKGROUND

[0002] Lacrimal passage flushing is a common ophthalmic diagnosis and treatment method.In the lacrimal passage flushing, medical staff needs to inject liquid into the lacrimal passage of the patient by the aid of flushing device, so as to determine whether the lacrimal passage of the patient is blocked.If the lacrimal passage of the patient is blocked, the flushing of the liquid can also remove part of the blockage, so as to achieve the purpose of dredging the lacrimal passage and preventing infection.

[0003] However, due to the small size of the punctum, and the upper and lower puncta are located in the medial canthus area of the patient's eye, so in actual operation, the flushing device and the hands of medical staff can easily cause the occlusion of the area where the punctum is located, thereby affecting the observation effect and reducing the operation efficiency.

[0004] In the prior art, there are some auxiliary devices that can improve the brightness of the area where the punctum is located by LED light, which is convenient for medical staff to observe and operate.However, in actual use, the direct radiation of the LED light can cause strong light stimulation to the patient's eye, which can induce the patient's instinctive closing action, thereby causing the contraction of the patient's eyelid muscle, increasing the difficulty of inserting the flushing device into the lacrimal passage, and being not conducive to the smooth progress of the lacrimal passage flushing work. TECHNICAL SOLUTION

[0005] Therefore, the utility model aims at providing a lacrimal passage flushing auxiliary device to solve the above technical problems.

[0006] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] A lacrimal passage flushing auxiliary device, comprising: a connecting hoop, a bearing ring and an adjusting ring; the connecting hoop is detachably sleeved on the lacrimal passage flushing device, the bearing ring is angularly adjustable and arranged on the outer side wall of the connecting hoop, and a magnifying lens is arranged in the bearing ring; a connecting ring is arranged on the bottom surface of the bearing ring, the connecting ring is coaxially arranged with the bearing ring, and the inner diameter of the connecting ring is greater than that of the bearing ring; an inner conical surface is arranged on the bottom surface of the connecting ring, a plurality of LED lamp beads are arranged on the inner conical surface, and the plurality of LED lamp beads are annularly arranged on the side of the connecting ring axis; the adjusting ring is rotatably sleeved on the connecting ring, an arc-shaped light shield is arranged on the bottom surface of the adjusting ring, the arc-shaped light shield is located below the bottom surface of the connecting ring, the arc center of the arc-shaped light shield is located on the axis of the connecting ring, and the inner diameter of the arc-shaped light shield is equal to that of the bearing ring.

[0008] Further, a limiting ring is arranged on the inner side wall of the adjusting ring, and a limiting groove for accommodating the limiting ring is arranged on the outer side wall of the connecting ring.

[0009] Further, the central angle of the arc-shaped light shield is between 30° and 120°.

[0010] Further, the outer diameter of the adjusting ring is larger than the outer diameter of the bearing ring, and the outer sidewall of the adjusting ring is provided with anti-skid stripes.

[0011] Further, the outer sidewall of the bearing ring is provided with a connecting rod, the outer sidewall of the connecting clamp is provided with a connecting seat, and the connecting seat is provided with a connecting blind hole for accommodating the connecting rod.

[0012] Further, the connecting rod comprises a connecting section, a locking section and a limiting section connected in sequence, the connecting section is connected with the bearing ring, the outer diameter of the locking section is larger than that of the connecting section, the outer diameter of the limiting section is larger than that of the locking section, and the sidewall of the locking section is provided with a plurality of locking grooves; the connecting blind hole comprises a anti-dropping section, a positioning section and an accommodating section communicated in sequence, the inner diameter of the anti-dropping section is equal to the outer diameter of the connecting section, the inner diameter of the positioning section is equal to the outer diameter of the locking section, the inner diameter of the accommodating section is equal to the inner diameter of the limiting section, and the inner sidewall of the positioning section is provided with a locking strip.

[0013] Further, the inner part of the accommodating section is provided with a spring, one end of the spring is connected with the limiting section, and the other end of the spring is connected with the bottom surface of the accommodating section.

[0014] Further, the outer sidewall of the connecting clamp is provided with a thumb accommodating groove and an index finger accommodating groove, the groove bottom area of the thumb accommodating groove is larger than that of the index finger accommodating groove, and the thumb accommodating groove and the index finger accommodating groove are respectively located on the two sides of the bearing ring.

[0015] Further, the outer sidewall of the connecting clamp away from the bearing ring is further provided with a gripping protrusion.

[0016] Compared with the prior art, the tear duct flushing auxiliary device has the following advantages:

[0017] (1) The tear duct flushing auxiliary device is provided with a plurality of LED lamp beads arranged in a ring shape on the inner conical surface of the bottom of the connecting ring, and an arc-shaped light shield is arranged on the rotatable adjusting ring. When in use, the inner conical surface can make the light emitted by the plurality of LED lamp beads converge to the center, facilitating the irradiation of the area where the lacrimal point is located, and the medical staff can observe the patient's lacrimal point through the magnifying lens, so as to facilitate the insertion of the flusher into the lacrimal point. At the same time, since the arc-shaped light shield is arranged on the adjusting ring, the medical staff can also drive the adjusting ring to rotate according to the relative position of the device and the pupil of the patient, so as to shield the light towards the pupil of the patient, avoid the eyelid muscle contraction of the patient due to strong light stimulation, improve the convenience of the medical staff inserting the flusher, and reduce the discomfort of the patient.

[0018] (2)The utility model discloses a kind of tear duct flushing auxiliary devices, multiple locking grooves are equipped on locking section, and locking strip is equipped in positioning section.When the angle of bearing ring needs to be adjusted, medical staff can press bearing ring to the direction of connecting hoop, to make locking section exit positioning section, then the angle of bearing ring is adjusted, and it is convenient to observe patient punctum.In completion adjustment, locking section will enter inside positioning section under the action of spring, to make locking strip insert in locking groove, to avoid abnormal rotation of bearing ring in use process.

[0019] (3)The utility model discloses a kind of tear duct flushing auxiliary devices, thumb accommodating slot, index finger accommodating slot and grip protrusion are equipped on connecting hoop.When medical staff is set to flushing device on connecting hoop, and grip protrusion is gripped, thumb accommodating slot and index finger accommodating slot can accommodate the thumb and index finger of medical staff respectively, to improve the grip comfort of medical staff.Secondly, when gripping, medical staff can also use middle finger to hook grip protrusion, to improve the operation flexibility of flushing device.In addition, when needing to rotate adjustment ring in use process, medical staff can be adjusted ring by index finger, at this time, the existence of grip protrusion and thumb accommodating slot can also improve the grip reliability of medical staff to the device, avoid the position of flushing device from excessive shaking due to the action of adjustment ring. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the application. The embodiments of the application and its

[0021] Figure 1 The structure schematic view of tear duct flushing auxiliary device for the embodiment of the utility model is shown;

[0022] Figure 2 The structure schematic view of tear duct flushing auxiliary device for the embodiment of the utility model is shown;

[0023] Figure 3 The explosion view of tear duct flushing auxiliary device for the embodiment of the utility model is shown;

[0024] Figure 4 The sectional view of connecting hoop for the embodiment of the utility model is shown;

[0025] Figure 5 The structure schematic view of bearing ring for the embodiment of the utility model is shown;

[0026] Figure 6 The structure schematic view of adjustment ring for the embodiment of the utility model is shown.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 1-connection hoop; 11-connection seat; 111-anti-dropping section; 112-positioning section; 113-receiving section; 114-locking strip; 12-thumb receiving groove; 13-index finger receiving groove; 14-gripping protrusion; 2-bearing ring; 21-switch; 22-battery compartment; 3-adjusting ring; 31-limiting ring; 4-magnifying lens; 5-connection ring; 51-inner conical surface; 52-limiting groove; 6-LED lamp bead; 7-arc-shaped light-shielding sheet; 81-connection section; 82-locking section; 821-locking groove; 83-limiting section; 9-spring. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0031] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0033] A lacrimal passage flushing auxiliary device, which can be constructed by Figures 1-6The schematic is shown. In this embodiment, the lacrimal passage flushing auxiliary device comprises a connecting hoop 1, a bearing ring 2 and an adjusting ring 3, wherein the bearing ring 2 is angularly adjustable arranged on the outer sidewall of the connecting hoop 1, and the adjusting ring 3 is rotationally connected with the bearing ring 2. In use, the medical staff can first detachably sleeve the connecting hoop 1 on the lacrimal passage flusher (such as a syringe or other existing handheld flusher), complete the assembly between the device and the lacrimal passage flusher, and then adjust the angle of the bearing ring 2 relative to the connecting hoop 1, so that the medical staff can observe the patient's punctum position through the bearing ring 2.

[0034] In order to improve the observation effect of the medical staff on the patient's punctum position, the embodiment is provided with a magnifying lens 4 inside the bearing ring 2. When the medical staff observes through the bearing ring 2, the magnifying lens 4 can magnify the image of the patient's eye, so as to facilitate the medical staff to find the punctum located in the inner canthus. At the same time, the presence of the magnifying lens 4 can also block the liquid splashing outward during the lacrimal passage flushing process, so as to avoid the splashing liquid affecting the observation and operation of the medical staff.

[0035] In addition, the device is also provided with a connecting ring 5 coaxially arranged on the bottom surface of the bearing ring 2. As shown in Figure 5 , the inner diameter of the connecting ring 5 is larger than that of the bearing ring 2, an inner tapered surface 51 is arranged on the bottom surface of the connecting ring 5, and a plurality of LED lamp beads 6 are arranged in a ring shape on the inner tapered surface 51. In use, the LED lamp beads 6 can emit light, thereby improving the brightness of the patient's eye and further improving the observation convenience of the medical staff. At the same time, since the plurality of LED lamp beads 6 are arranged in a ring shape on the inner tapered surface 51, and the inner diameter of the connecting ring 5 is larger than that of the bearing ring 2, the light emitted by the plurality of LED lamp beads 6 will be gathered towards the axis direction of the inner tapered surface 51, thereby improving the lighting effect of the light on the patient's eye. The bottom surface of the bearing ring 2 can also shield the light emitted by the LED lamp beads 6, so as to avoid the light emitted by the LED lamp beads 6 from affecting the observation of the medical staff.

[0036] It should be noted that, in order to facilitate the medical staff to reasonably control the switch of the LED lamp beads 6 and provide power supply for the light emission of the LED lamp beads 6, the device should be provided with a switch 21 and a battery compartment 22 on the bearing ring 2, and a battery is arranged in the battery compartment 22, and the battery, the switch 21 and the LED lamp beads 6 should be provided with the necessary circuit connection structure. Since the internal structure of the switch 21 and the LED lamp beads 6 are both prior art, and the circuit connection structure between the battery, the switch 21 and the LED lamp beads 6 is also a common connection mode known to those skilled in the art, therefore the above contents will not be described in detail in this application.

[0037] In the prior art, part of the lacrimal passage flushing auxiliary device also uses light source to irradiate the patient's eye, thereby improving the observation effect of the medical staff. However, the existing products do not reasonably guide and limit the light emitted by the light source, so that in the actual use process, the light emitted by the light source will cause strong light stimulation to the patient's eye, thereby inducing the patient's instinctive eye closing action, and further causing the patient's eyelid muscle to contract, increasing the difficulty of inserting the flusher into the lacrimal passage. To solve this problem, the device is provided with an arc-shaped light shield 7 with an inner diameter equal to that of the bearing ring 2 on the bottom surface of the adjusting ring 3. When in use, the medical staff can adjust the position of the arc-shaped light shield 7 by rotating the adjusting ring 3, so that the arc-shaped light shield 7 shields part of the LED lamp beads 6, avoiding the direct irradiation of the patient's pupil by light, thereby improving the operation convenience of the medical staff and reducing the discomfort of the patient.

[0038] Specifically, to realize the rotational connection between the adjusting ring 3 and the bearing ring 2, as shown in Figure 2 , the adjusting ring 3 is rotatably sleeved on the connecting ring 5. After assembly is completed, the arc-shaped light shield 7 will be located below the bottom surface of the connecting ring 5, and the center of the arc-shaped light shield 7 will be located on the axis of the connecting ring 5. In use, the medical staff can drive the adjusting ring 3 to rotate according to the relative position of the device and the patient's pupil, thereby shielding the light irradiating the patient's pupil, avoiding strong light stimulation to the patient's eye.

[0039] For example, when the medical staff performs flushing operation on the patient's right eye, since the lacrimal point of the right eye of the human body is located on the left side of the pupil, the device should stay above the left side area of the pupil of the patient's right eye. When the LED lamp beads 6 emit light, due to the existence of the inner conical surface 51, the light emitted by the plurality of LED lamp beads 6 will be gathered in an inverted conical shape, so that the light emitted by the LED lamp beads 6 on the left side of the axis of the inner conical surface 51 will directly irradiate the patient's pupil. At this time, the medical staff can move the arc-shaped light shield 7 to the left side of the axis of the inner conical surface 51 by rotating the adjusting ring 3, thereby shielding the LED lamp beads 6 directly irradiating the patient's pupil, to avoid the contraction of the patient's eyelid muscle due to the eye closing action.

[0040] As an optional embodiment of the present embodiment, to ensure that the arc-shaped light shield 7 has a good light shielding range, the central angle of the arc-shaped light shield 7 is between 30° and 120°. As shown in Figure 6 , the central angle of the arc-shaped light shield 7 is 90° at this time, and in this state, the arc-shaped light shield 7 can shield the light directly irradiating the patient's pupil, and can also avoid affecting the illumination effect of the device on the patient's eye due to the arc-shaped light shield 7 being too large.

[0041] Optionally, to avoid the adjusting ring 3 from being separated from the connecting ring 5 during the rotation, the device can be provided with a limiting ring 31 on the inner side wall of the adjusting ring 3, and a limiting groove 52 on the outer side wall of the connecting ring 5 for accommodating the limiting ring 31. The cooperation between the limiting ring 31 and the limiting groove 52 can axially limit the adjusting ring 3, preventing the adjusting ring 3 from being separated from the connecting ring 5.

[0042] In addition, to improve the operation convenience of the adjusting ring 3, the outer diameter of the adjusting ring 3 in the embodiment should be larger than that of the bearing ring 2, and the outer side wall of the adjusting ring 3 should be provided with anti-skid stripes, so as to facilitate the medical staff to drive the adjusting ring 3 to rotate by means of the adjusting ring 3 outer wall.

[0043] To realize the angle-adjustable function of the bearing ring 2, the outer side wall of the bearing ring 2 in the embodiment can be provided with a connecting rod, and the outer side wall of the connecting clamp 1 can be provided with a connecting seat 11, and the connecting seat 11 can be provided with a connecting blind hole for accommodating the connecting rod. When it is necessary to adjust the angle of the bearing ring 2 relative to the connecting clamp 1, the medical staff can drive the connecting rod to rotate inside the connecting blind hole, so that the angle of the bearing ring 2 meets the needs of the medical staff to observe the position of the patient's tear point.

[0044] However, since the device needs to be adjusted during use to change the position of the arc-shaped light-shielding piece 7, the angle of the bearing ring 2 may change due to the adjusting action of the adjusting ring 3. To avoid this situation, the connecting rod in the embodiment can include a connecting section 81, a locking section 82 and a limiting section 83 connected in sequence, and the side wall of the locking section 82 can be provided with a plurality of locking grooves 821. Correspondingly, the connecting blind hole can include a anti-separation section 111, a positioning section 112 and an accommodating section 113 connected in sequence, and the inner side wall of the positioning section 112 can be provided with a locking strip 114. When the locking strip 114 is inserted into the locking groove 821, the cooperation between the locking strip 114 and the locking groove 821 can circumferentially limit the connecting rod, preventing the angle of the bearing ring 2 from being abnormally changed.

[0045] As Figure 4 and Figure 5As shown, in the present embodiment, the outer diameter of the locking section 82 should be greater than that of the connecting section 81, the outer diameter of the limiting section 83 should be greater than that of the locking section 82, the inner diameter of the anti-disengaging section 111 should be equal to that of the connecting section 81, the inner diameter of the positioning section 112 should be equal to that of the locking section 82, and the inner diameter of the accommodating section 113 should be equal to that of the limiting section 83. When the angle of the carrier ring 2 needs to be adjusted, the medical staff can press the carrier ring 2 towards the connecting clasp 1, so that the locking section 82 exits the positioning section 112, and the circumferential limitation of the locking strip 114 and the locking groove 821 on the connecting rod is released. When the angle adjustment of the carrier ring 2 is completed, the medical staff can pull the carrier ring 2 in the opposite direction, so that the locking section 82 enters the inside of the positioning section 112, and the locking strip 114 is inserted into the locking groove 821, thereby completing the limitation of the connecting rod.

[0046] Optionally, to improve the operation convenience of the present device, the inside of the accommodating section 113 can further be provided with a spring 9, one end of the spring 9 should be connected with the limiting section 83, and the other end of the spring 9 should be connected with the bottom surface of the accommodating section 113. When the medical staff presses the carrier ring 2 towards the connecting clasp 1, the spring 9 will be compressed, thereby generating an elastic force. When the medical staff removes the pressure on the carrier ring 2, the elastic force of the spring 9 can make the locking section 82 quickly enter the inside of the positioning section 112, thereby improving the ease of use of the present device.

[0047] In actual use, since the puncta of patients are small, and the operation of inserting the flusher along the puncta into the lacrimal passage requires high operation precision, the medical staff needs to have a good grip on the flusher to accurately perform the insertion operation. To improve the grip effect of the flusher after the flusher is installed with the present device, the present embodiment is provided with a thumb accommodating groove 12 and an index finger accommodating groove 13 on the outer side wall of the connecting clasp 1, the groove bottom area of the thumb accommodating groove 12 is greater than that of the index finger accommodating groove 13, and the thumb accommodating groove 12 and the index finger accommodating groove 13 are respectively located on the two sides of the carrier ring 2. When the flusher installed with the present device is gripped, the thumb and the index finger of the medical staff can be correspondingly placed into the inside of the thumb accommodating groove 12 and the index finger accommodating groove 13, thereby improving the comfort and reliability of the gripping operation, and facilitating the medical staff to drive the flusher to operate flexibly and accurately through the action of the thumb and the index finger.

[0048] In addition, the present device is further provided with a gripping protrusion 14 on the outer side wall of the connecting clasp 1 away from the carrier ring 2. When gripping, the medical staff can also hook the middle finger around the gripping protrusion 14, thereby further improving the operation flexibility of the flusher. Meanwhile, when the medical staff needs to rotate the adjusting ring 3, since the state that the middle finger hooks around the gripping protrusion 14 and the thumb presses the thumb accommodating groove 12 can ensure that the flusher has good gripping reliability, the medical staff can drive the adjusting ring 3 through the index finger, thereby avoiding that the position of the flusher excessively shakes due to the driving action of the adjusting ring 3.

[0049] The effects of the above-mentioned scheme are described as follows:

[0050] The embodiment provides a lacrimal passage flushing auxiliary device, light emitted by a plurality of LED lamp beads can be gathered through an inner conical surface, the position of an arc-shaped light shield can be flexibly changed through rotation of an adjusting ring, direct irradiation of the LED lamp beads to a pupil of a patient is avoided, the operation convenience of medical staff is improved, and the discomfort of the patient is reduced. In addition, the device can realize adjustment and limiting of the angle of a bearing ring through cooperation of a connecting rod and a connecting blind hole, so that different use requirements are met. In addition, the device can improve the gripping effect of a connecting clamp through a thumb accommodating groove, an index finger accommodating groove and a gripping protrusion, and improve the gripping reliability and operation flexibility of the flusher.

[0051] The above merely describes preferred embodiments of the utility model and is not intended to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lacrimal passage flushing aid device, characterized in that, The utility model relates to a kind of tear duct flusher, including: Connecting clamp (1), bearing ring (2) and adjusting ring (3);The connecting clamp (1) is detachably set on tear duct flusher, the bearing ring (2) is angularly adjustable and arranged on the outer side wall of connecting clamp (1), and is equipped with magnifying lens (4) inside bearing ring (2);Connecting ring (5) is equipped on the bottom surface of bearing ring (2), the connecting ring (5) is coaxially arranged with bearing ring (2), and the inner diameter of connecting ring (5) is greater than the inner diameter of bearing ring (2);Inner taper surface (51) is equipped on the bottom surface of connecting ring (5), a plurality of LED lamp beads (6) are equipped on the inner taper surface (51), and a plurality of LED lamp beads (6) are annularly arranged on the circumferential side of the axis of connecting ring (5);The adjusting ring (3) is rotatably set on connecting ring (5), arc-shaped light shield (7) is equipped on the bottom surface of adjusting ring (3), the arc-shaped light shield (7) is below the bottom surface of connecting ring (5), the arc center of arc-shaped light shield (7) is on the axis of connecting ring (5), and the inner diameter of arc-shaped light shield (7) is equal to the inner diameter of bearing ring (2).

2. A lacrimal duct irrigation assist device according to claim 1, wherein: Limiting ring (31) is equipped on the inner side wall of the adjusting ring (3), limiting groove (52) for accommodating limiting ring (31) is equipped on the outer side wall of connecting ring (5).

3. A lacrimal duct irrigation assist device according to claim 1, wherein: The central angle of the arc-shaped light shield (7) is between 30° and 120°.

4. The lacrimal irrigation assist device of claim 1, wherein: The outer diameter of the adjusting ring (3) is greater than the outer diameter of the bearing ring (2), and anti-slip stripes are provided on the outer side wall of the adjusting ring (3).

5. The lacrimal irrigation assist device of claim 1, wherein: A connecting rod is provided on the outer side wall of the bearing ring (2), a connecting seat (11) is provided on the outer side wall of the connecting clamp (1), and a connecting blind hole for accommodating the connecting rod is provided on the connecting seat (11).

6. A lacrimal duct irrigation assist device according to claim 5, wherein: The connecting rod includes a connecting segment (81), a locking segment (82), and a limiting segment (83) connected in sequence, the connecting segment (81) is connected with the bearing ring (2), the outer diameter of the locking segment (82) is greater than the outer diameter of the connecting segment (81), the outer diameter of the limiting segment (83) is greater than the outer diameter of the locking segment (82), and a plurality of locking grooves (821) are provided on the side wall of the locking segment (82); the connecting blind hole includes a anti-dropping segment (111), a positioning segment (112), and an accommodating segment (113) connected in sequence, the inner diameter of the anti-dropping segment (111) is equal to the outer diameter of the connecting segment (81), the inner diameter of the positioning segment (112) is equal to the outer diameter of the locking segment (82), the inner diameter of the accommodating segment (113) is equal to the inner diameter of the limiting segment (83), and a locking strip (114) is provided on the inner side wall of the positioning segment (112).

7. A lacrimal duct irrigation assist device according to claim 6, wherein: A spring (9) is provided inside the accommodating segment (113), one end of the spring (9) is connected with the limiting segment (83), and the other end of the spring (9) is connected with the bottom surface of the accommodating segment (113).

8. The lacrimal irrigation assist device of claim 1, wherein: A thumb accommodating groove (12) and an index finger accommodating groove (13) are provided on the outer side wall of the connecting clamp (1), the groove bottom area of the thumb accommodating groove (12) is greater than the groove bottom area of the index finger accommodating groove (13), and the thumb accommodating groove (12) and the index finger accommodating groove (13) are respectively located on both sides of the bearing ring (2).

9. The lacrimal irrigation assist device of claim 1, wherein: The connecting clamp (1) is further provided with a gripping protrusion (14) on the outer side wall away from the bearing ring (2).