Adjustable eye speckle with macular protection function and macular protection film

Abstract

The utility model discloses an adjustable eye speckle with a macular protection function and a macular protection film. The adjustable eye speculum comprises an eye speculum body and a macular protection film. Wherein the macular protection film comprises a shading sheet and a retractable movable frame, the retractable movable frame is a square or rhombic frame when being unfolded, and four edges of the retractable movable frame are movably connected; the two diagonal lines of the retractable movable frame are in a cross shape, and the upper vertex angle of the retractable movable frame is connected with the lower end of the anti-dazzling screen. The macular protection film is installed at the end, away from the eyelid supporting piece, of the adjusting part. When the macular part is not involved in ophthalmic examination, treatment and operation, the adjustable eye speckle provides protection for the macular part, and when the macular part is operated, a good visual field is provided in time, and operation and treatment are not affected; the macular protection film avoids the influence of light stimulation on eye stimulation of a patient, the application scene is wide, operation is convenient and fast, and good clinical application prospects are achieved.

Description

Technical Field

[0001] The utility model relates to an adjustable eyelid opener with macula protection and a macula protection film, belonging to the technical field of medical equipment. Background Art

[0002] The macula, also known as the retinal macula, is a specific area at the posterior pole of the eyeball, located below the temporal side of the optic disc, about 3-4 mm away, with a diameter of 1-3 mm and a horizontal oval shape. Under the ophthalmoscope, the macula area usually appears as a dark brown area surrounded by a ring of reflections. The macula contains a part called the fovea, in which cone cells are densely arranged. The ellipsoid layer in the macula is the inner segment layer of the cone cells, which absorbs light energy and transmits it to the outer segment of the cone cells, and then converts the light energy into electrical energy and transmits it to the visual center. The retina at the fovea is very thin, with a thickness of about 0.13 mm, while the thickness of other areas is about 0.37 mm. The biological characteristics of the retina itself, the shielding effect of the anterior segment tissues such as the cornea and lens on electromagnetic waves of specific wavelengths, and the characteristics of the light environment that humans are exposed to determine that the retina is most susceptible to damage from blue light in visible light. Various optical lighting devices (such as indirect ophthalmoscopes, surgical microscopes) can also cause photodamage to the macula, inducing photochemical damage to the macula, especially the foveal photoreceptors and retinal pigment epithelium.

[0003] In recent years, the use of ophthalmic instruments such as slit lamp microscopes, shadowless lamps, surgical microscopes, etc. has led to potential damage to the retinal macula due to light exposure and eye irritation symptoms to patients, which has increasingly attracted attention.

[0004] The slit lamp microscope, also known as the slit lamp, is a commonly used inspection device in ophthalmology. It has an adjustable magnification and uses direct illumination or diffuse illumination. It is observed with a medium to high magnification microscope. Common treatments such as stone removal, corneal suture removal, meibomian gland blockage treatment, and eyelash extraction must be completed under the slit lamp. Shadowless lamps are mostly used for ocular surface surgery. The illumination is greater than 150,000 lux, and the actual applicable illumination is 40,000 to 100,000 lux, which can be adjusted appropriately according to needs. After exposure to light, the eyes will have symptoms of discomfort and stinging, and there is also a risk of light damage to the macula.

[0005] Posterior segment surgery refers to surgery involving diseases of the posterior segment of the eye, such as the vitreous body and retina; including proliferative diabetic retinopathy, epiretinal membrane, macular hole, vitrectomy and retinal detachment surgery. Posterior segment vitrectomy is difficult, takes a long time, and requires high technical skills. It is the most delicate and difficult surgery in ophthalmology. During posterior segment surgery, the light from the microscope irradiates the surgical area, and light damage to the macula of the fundus is inevitable. In the design of the light source, each microscope manufacturer has taken into account the reduction of stimulation to the macula as much as possible, but the brightness of the light source is always present, and damage is inevitable. At present, physical shielding methods are used to avoid or reduce light exposure during eye treatment, surgery, and intraocular operations.

[0006] Due to the characteristics of the macular structure, how to protect it during surgery and treatment, and how to alleviate the patient's discomfort caused by light exposure, are urgent issues that need to be addressed. Therefore, it is necessary to develop an ophthalmic surgical instrument with macular protection. Summary of the invention

[0007] The purpose of the utility model is to provide an adjustable eyelid opener with macula protection and a macula protection film in view of the deficiencies of the prior art.

[0008] In order to achieve the above-mentioned purpose, the utility model provides an adjustable eyelid opener with macular protection, comprising an eyelid opener and a macular protection film; wherein the eyelid opener comprises two eyelid support members for supporting the upper eyelid and the lower eyelid respectively, two eyelid opener arms and an adjusting part for adjusting the opening and closing angles of the two eyelid opener arms, one end of the two eyelid opener arms is respectively connected to the adjusting part, and the other end is respectively connected to the eyelid support member, and the adjusting part can be operated to make the other ends of the two eyelid opener arms approach or move away from each other (adjust the opening and closing angles of the two eyelid opener arms);

[0009] The macular protection film comprises a shading sheet and a retractable movable frame, wherein the retractable movable frame is a diamond-shaped frame composed of four push-pull arm rods in an unfolded state, and the four push-pull arm rods are movably connected to each other so that the push-pull arm rods can be unfolded and retracted; the two diagonal lines of the retractable movable frame are cross-shaped, and the upper vertex of the retractable movable frame is connected to the lower end of the shading sheet;

[0010] The macular protection film is installed at one end of the adjustment part away from the eyelid support.

[0011] Preferably, the adjustment part comprises a Y-shaped adjustment arm, an adjustment knob and a support seat; the Y-shaped adjustment arm comprises left and right side arms and a middle arm, one end of the left and right side arms are respectively fixedly connected to the two eyelid opener arms, and the other end is respectively rotatably connected to the middle arm;

[0012] Support rods are fixedly installed on the left and right sides of the support seat, and the support rods on the left and right sides are rotatably connected to one end of the two eyelid opener arms respectively; the adjustment knob is rotatably installed on the support seat and is located between the support rods on the left and right sides.

[0013] Preferably, the macular protection film is mounted on one side surface of the base in a fixed connection manner and is in parallel with the virtual plane where the Y-shaped adjustment arm is located.

[0014] Preferably, a protrusion is provided on one side surface of the base, and a connecting ring for sleeve-engaging the protrusion is provided at the lower end of the retractable movable frame.

[0015] The utility model also provides a macular protection film that can be installed on an eyelid opener, the macular protection film includes a shading sheet and a retractable movable frame, the retractable movable frame is a diamond-shaped frame composed of four push-pull arms in the expanded state, the four push-pull arms are movably connected to each other so that the push-pull arms can be expanded and retracted; the two diagonal lines of the retractable movable frame are cross-shaped, and the upper vertex of the retractable movable frame is connected to the lower end of the shading sheet.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The adjustable eyelid speculum of the utility model provides protection for the macula when ophthalmic examination, treatment and surgery do not involve the macula, and provides a good field of vision in a timely manner when the operation involves this area, without affecting the operation and treatment; in addition, when performing the above operations, it can avoid or reduce the patient's eye discomfort caused by light stimulation; the adjustable eyelid speculum of the utility model avoids the influence of light stimulation on the patient's eyes, has a wide range of application scenarios, is easy to operate, and has good clinical application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an adjustable eyelid speculum with macula protection;

[0019] Figure 2 It is a schematic diagram of the structure of an adjustable eyelid opener;

[0020] Figure 3 It is a schematic diagram of the structure of the macular protective membrane under contraction;

[0021] Figure 4 It is a schematic diagram of the connection between the adjustable eyelid opener base and the macular protective film;

[0022] Figure 5 This is a schematic diagram of the structure of the macular protective film after unfolding;

[0023] Figure 6 This is a schematic diagram of the structure of the macular protective film after advancement;

[0024] Figure markings: 1. eyelid opener; 2. macular protection film; 1-1. eyelid support; 1-2. eyelid opener arm; 1-3. adjustment arm rod; 1-4. buckle A; 1-5. adjustment knob; 1-6. support rod; 1-7. base; 1-8. protrusion; 2-1. sunshade; 2-2. buckle B; 2-3. push-pull arm rod; 2-4. connecting ring. DETAILED DESCRIPTION

[0025] In order to make the present invention more obvious and easy to understand, preferred embodiments are described in detail as follows in conjunction with the accompanying drawings.

[0026] Example

[0027] This embodiment provides an adjustable eyelid opener with macula protection, such as Figures 1 to 6 As shown, it includes an adjustable eyelid opener 1 and a macular protection film 2 connected to each other.

[0028] Wherein, the structure of the adjustable eyelid opener 1 is as follows Figure 2 As shown, it comprises: two eyelid supports 1-1, two eyelid retractor arms 1-2, and an adjustment part; wherein, the two eyelid supports 1-1 are ring-shaped, and the two eyelid supports 1-1 are respectively installed on one end of the two eyelid retractor arms 1-2, and the two eyelid supports 1-1 are respectively used to support the upper eyelid and lower eyelid of the patient. The other ends of the two eyelid retractor arms 1-2 are respectively installed on the adjustment part, and the adjustment part can be operated to make the ends of the two eyelid retractor arms 1-2 connected to the eyelid supports 1-1 close to or away from each other, that is, the adjustment part is used to adjust the opening and closing angles of the two eyelid retractor arms 2; the macular protection film is installed on one end of the adjustment part away from the two eyelid supports 1-1.

[0029] During actual use, the adjusting part is first adjusted, and the adjusting part drives the two eyelid opening arms 1-2 to rotate so that the two eyelid supporting parts 1-1 are close to each other, and then the eyelid opening device is placed on the patient's eyeball so that the two eyelid supporting parts 1-1 respectively fix the patient's upper eyelid and lower eyelid. Then the adjusting part is adjusted, and the adjusting part drives the two eyelid opening arms 1-2 to rotate so that the two eyelid supporting parts 1-1 are away from each other, thereby opening the patient's upper eyelid and lower eyelid.

[0030] The structure of the macular protective film 2 is as follows Figure 3As shown, it includes a shading sheet 2-1 and a retractable movable frame. The shading sheet 2-1 can be a quadrilateral or a circle, preferably a rhombus. The retractable movable frame is a rhombus-shaped frame composed of four push-pull arm rods 2-3 in the expanded state. The four push-pull arm rods 2-3 of the retractable movable frame are movably connected to each other; the two diagonal lines of the retractable movable frame are cross-shaped, and the upper vertex of the retractable movable frame is movably connected to the lower end of the shading sheet; the four push-pull arm rods 2-3 and the retractable movable frame and the shading sheet 2-1 can be movably connected by pins or buckles, respectively. Figure 3 The movable connection via the buckle B 2-2 is shown in FIG.

[0031] Furthermore, in this embodiment, the adjusting portion of the adjustable eyelid opener 1 further includes a base 1-7, on which a protrusion 1-8 is provided, and a connecting ring 2-4 is provided at the lower end of the retractable movable frame of the macular protection film 2 for sleeve connection with the protrusion 1-8 provided on the base 1-7, such as Figure 1 , 4 When not in use, the retractable movable frame can be retracted to avoid affecting the eyelid opening operation, and since the macular protection film is installed at a position away from the eyelid support 1-1, it does not affect the operation and treatment.

[0032] In actual use, the retractable movable frame is unfolded by unfolding the push-pull arm rods 2-3 on both sides. Figure 5 As shown, the shading sheet 2-1 is further advanced by pushing the push-pull arm rods 2-3 on both sides, and the shading sheet 2-1 reaches the desired shading position through the force of the forward push, that is, the angle of the push-pull arm rods 2-3 is closed to reach the applicable length of the forward push, such as Figure 6 As shown; the material around the shading piece 2-1 can be made of harder rounded silicone, which can play a supporting role on the one hand, and can gently contact the cornea on the other hand to reduce irritation and give the patient a more comfortable treatment experience.

[0033] Furthermore, in the present embodiment, the adjustable eyelid opener 1 can be made of medical stainless steel, which has strong rigidity and hardness, high temperature resistance and corrosion resistance, and can be sterilized by high temperature and high pressure. The adjustment part includes: an adjustment arm 1-3, left and right support rods 1-5, an adjustment knob 1-6, and a base 1-7 provided at the bottom of the adjustment knob 1-6 for axially limiting and supporting the adjustment knob. The adjustment arm 1-3 is a Y-shaped adjustment arm, and the lower ends of the left and right arm rods of the Y-shaped adjustment arm rod are respectively rotatably connected to the upper end of the middle arm rod, for example, by a pin rotatably connected (rotatably connected by a pin is a prior art, Figures 1-2The left and right sides of the base 1-6 are respectively fixedly mounted with support rods 1-5, and the left and right side arms of the Y-shaped adjustment arm are respectively fixedly connected to the two eyelid opener arms 1-2, and the fixedly connected eyelid opener arms 1-2 and the Y-shaped adjustment arm are rotatably connected to the support rods 1-5, for example, by means of pins, hinges, buckles, etc. Figure 1 The figure shows that the intermediate arm is movably connected to the adjusting knob 1-6 by a rotatable connection through a buckle A 1-4. Specifically, the lower end of the intermediate arm of the Y-shaped adjusting arm is provided with an external thread, and the adjusting knob 1-6 is provided with an internal thread for forming a threaded connection with the intermediate arm (the threaded connection is a prior art, Figures 1-2 (not shown in the figure), the adjusting knob 1-6 is rotatably mounted on the base 1-7 and is located between the two support rods 1-5. A groove can be set on the base 1-7 and between the two support rods 1-5. The adjusting knob 1-6 is placed on the groove so that the adjusting knob 1-6 can rotate in the groove. The groove structure is not shown in the figure, and the groove may not be set. The adjusting knob 1-6 is directly mounted on the base 1-7, and the adjusting knob 1-6 can be kept to rotate freely without axial displacement. A protrusion 1-8 for connecting the macular protection film is provided on one side surface of the base 1-7, so that the macular protection film 2 is installed in a parallel position with the virtual plane where the adjusting arm 1-3 is located after the adjustable eyelid opener 1.

[0034] During actual use, when the two eyelid support members 1-1 need to be brought closer to each other, the medical staff adjusts the adjustment arm 1-3 by turning the adjustment knob 1-6 so that the middle arm moves axially close to the adjustment knob 1-6. At this time, the middle arm drives one end of the left and right arm members to be close to the adjustment knob 1-5, and further drives the other end of the left and right arm members to generate a force to move closer to each other and rotate, thereby driving the other ends of the two eyelid opener arms 1-2 to be brought closer to each other, and finally the two eyelid support members 1-1 are brought closer to each other; when the two eyelid support members 1-1 need to be moved away from each other, the medical staff adjusts the adjustment arm 1-3 by turning the adjustment knob 1-6 so that the middle arm moves axially away from the adjustment knob 1-6. At this time, the middle arm drives one end of the left and right arm members to be away from the adjustment knob 1-5, and further drives the other end of the left and right arm members to generate a force to move away from each other and rotate, thereby driving the other ends of the two eyelid opener arms 1-2 to be moved away from each other, and finally the two eyelid support members 1-1 are moved away from each other. When the macular protection is not needed, the retractable movable frame shading sheet 2-1 of the macular protection film 2 is retracted ( Figure 3 ), can be stored between the two side support rods 1-5, without affecting the treatment or surgical operation, such as Figure 1 shown.

[0035] The above-mentioned implementation cases are only preferred implementation cases of the present utility model, and are not any formal and substantial limitations of the present utility model. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present utility model, and these improvements and supplements should also be regarded as the scope of protection of the present utility model.

Claims

1. An adjustable eyelid opener with macula protection, characterized in that: It comprises an eyelid opener and a macular protection film; wherein the eyelid opener comprises two eyelid support members for supporting the upper eyelid and the lower eyelid respectively, two eyelid opener arms and an adjusting part for adjusting the opening and closing angles of the two eyelid opener arms, one end of the two eyelid opener arms is respectively connected to the adjusting part, and the other end is respectively connected to the eyelid support member, and the adjusting part can be operated to make the other ends of the two eyelid opener arms approach or move away from each other; The macular protection film comprises a shading sheet and a retractable movable frame, wherein the retractable movable frame is a diamond-shaped frame composed of four push-pull arm rods in an unfolded state, and the four push-pull arm rods are movably connected to each other so that the push-pull arm rods can be unfolded and retracted; the two diagonal lines of the retractable movable frame are cross-shaped, and the upper vertex of the retractable movable frame is connected to the lower end of the shading sheet; The macular protection film is installed at one end of the adjustment part away from the eyelid support.

2. The adjustable eyelid opener according to claim 1, characterized in that: The adjustment part includes a Y-shaped adjustment arm, an adjustment knob and a support seat; the Y-shaped adjustment arm includes left and right side arms and a middle arm, one end of the left and right side arms are respectively fixedly connected to the two eyelid opener arms, and the other end is respectively rotatably connected to the middle arm; Support rods are fixedly installed on the left and right sides of the support seat, and the support rods on the left and right sides are rotatably connected to one end of the two eyelid opener arms respectively; the adjustment knob is rotatably installed on the support seat and is located between the support rods on the left and right sides.

3. The adjustable eyelid opener according to claim 2, characterized in that: The macular protection film is fixedly mounted on one side of the base and is parallel to the virtual plane where the Y-shaped adjustment arm is located.

4. The adjustable eyelid opener according to claim 3, characterized in that: A protrusion is arranged on one side surface of the base, and a connecting ring for sleeve-connecting the protrusion is arranged at the lower end of the retractable movable frame.

5. A macular protective film, characterized in that: It is a macular protection film that can be installed on an eyelid opener. The macular protection film includes a shading sheet and a retractable movable frame. The retractable movable frame is a diamond-shaped frame composed of four push-pull arms in the expanded state. The four push-pull arms are movably connected to each other so that the push-pull arms can be expanded and retracted. The two diagonal lines of the retractable movable frame are cross-shaped, and the upper vertex of the retractable movable frame is connected to the lower end of the shading sheet.

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