CN111358619A - Macular protective keratoscope and instrument kit for ophthalmic surgery - Google Patents
Macular protective keratoscope and instrument kit for ophthalmic surgery Download PDFInfo
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- CN111358619A CN111358619A CN202010286955.3A CN202010286955A CN111358619A CN 111358619 A CN111358619 A CN 111358619A CN 202010286955 A CN202010286955 A CN 202010286955A CN 111358619 A CN111358619 A CN 111358619A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
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Abstract
The invention discloses a macular protection keratoscope and an instrument kit for ophthalmic surgery, and relates to the field of ophthalmic surgery instruments. The invention discloses a macular protective keratoscope, which comprises a keratoscope body used for being stuck on the surface of an eyeball and inosculating with the curved surface of the eyeball, wherein the keratoscope body is provided with a nontransparent part which is positioned in the center and used for blocking light rays from passing through. This macular protection keratoscope can protect macula lutea not penetrated directly by operation microscope light, avoids leading to eyes to receive secondary damage because of the long-time perpendicular incidence of light to protect the corneal epithelium simultaneously, also make things convenient for the operation operator to carry out the operation to patient's eyeball equally.
Description
Technical Field
The invention relates to the field of ophthalmic surgical instruments, in particular to a macular protective keratoscope and an instrument kit for ophthalmic surgery.
Background
In ophthalmic intraocular surgery, mydriatic eye drops are usually needed, the diameter of the pupil is enlarged from 3mm to about 6mm, and the light of a surgical microscope is easy to irradiate from the pupil to the macula lutea, which is easy to cause secondary injury to the eyes of patients if the surgery lasts for a long time.
In view of this, the invention is particularly proposed.
Disclosure of Invention
The object of the present invention includes, for example, providing a macular protection keratoscope and instrument kit for ophthalmic surgery, which can protect the macula from being directly irradiated by the light of a surgical microscope during surgery, especially long-term ophthalmic intraocular surgery, avoid the eyes from being secondarily injured by the direct irradiation of light for a long time, and simultaneously protect the corneal epithelium, and the structural design of the macular protection keratoscope also facilitates the surgical operation of the operator on the eyeball of the patient.
Embodiments of the invention may be implemented as follows:
in a first aspect, embodiments of the present invention provide a macular-protection keratoscope, comprising: the corneal mirror body is used for being attached to the surface of an eyeball and inosculating with the curved surface of the eyeball, and is provided with a nontransparent part which is positioned in the center and used for blocking light rays from entering the pupil and a transparent part which surrounds the nontransparent part;
the periphery of the transparent part is provided with a first notch which is concave towards the non-transparent part and used for providing an operation space for the main notch knife and a second notch which is used for providing an operation space for the side notch.
When an ophthalmic internal eye operation such as a cataract operation is performed on a patient, the macular protection keratoscope provided by the invention is used, the structure of the macular protection keratoscope is similar to that of a contact lens, but the central area of the macular protection keratoscope is provided with a nontransparent part which is attached to an eyeball of the patient, the nontransparent part covers a pupil area, so that the direct irradiation of light rays or other illumination of a microscope can be blocked, the direct irradiation of the light rays to the macula is avoided, and therefore, even if the operation time is long, the eyes of the patient can be protected, and secondary damage caused by long-time irradiation is avoided; in addition, the periphery of the transparent part is provided with a first incision and a second incision, the first incision provides an operation space for the main incision knife, and the second incision provides an operation space for the side incision knife, so that the relative instruments on hands can not be influenced to enter and exit the eyes, and convenience is provided for operation.
In an alternative embodiment, the diameter of the non-transparent portion is 1.5-6mm, preferably 2 mm.
The diameter of the nontransparent part is controlled in the range of 1.5-6mm, for example, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9 or 6.0mm, and the macula lutea can be protected by substantially blocking the direct light irradiation of a microscope.
In some embodiments, the diameter of the nontransparent part is controlled to be 2mm, the effect is optimal, the light can be blocked, and the operation visual field is not influenced.
In an alternative embodiment, the opaque portion is colored to block light from passing through.
In an alternative embodiment, the opaque portion is colored in a color selected from any one of black, yellow, green, blue, red, pink, purple, white, cyan, magenta, light yellow, light blue, dark blue, and sky blue.
In an alternative embodiment, the opaque portion is colored black. The shading effect is better.
In an alternative embodiment, a light shielding structure is disposed inside the opaque portion, and the light shielding structure is made of a material capable of blocking light from passing through.
In an alternative embodiment, the material that blocks light from passing through is selected from carbon fibers.
The mode of blocking light by the non-transparent part can be selected according to actual conditions, for example, pigment molecules are added in the non-transparent part area or the area is dyed in other modes to block the light from transmitting, or a shading structural part such as carbon fiber can be arranged in the non-transparent part area to achieve the effect of blocking light, and under the condition, the diameter of the shading structural part is controlled to be 1.5-6 mm; no matter how the opaque portion blocks light, it is opaque.
In an optional embodiment, an included angle between a connecting line of the first cut and the center of the corneal mirror body and a connecting line of the second cut and the center of the corneal mirror body is 90-120 °.
In alternative embodiments, the included angle is 90 ° or 120 °.
In performing ophthalmic intraocular surgery, such as cataract surgery, two types of scalpels are commonly used, one being a main incision scalpel and the other being a side incision scalpel.
In other embodiments, the included angle between the first incision and the second incision can be adjusted or changed according to the position of the surgical incision, and is usually controlled to be 90 ° to 120 °, for example, 90 °, 92 °, 94 °, 96 °, 98 °, 100 °, 102 °, 104 °, 106 °, 108 °, 110 °, 112 °, 114 °, 116 °, 118, or 120 °, or 91 °, 93 °, 95 °, 97 °, 99 °, 101 °, 103 °, 105 °, 107 °, 109 °, 111 °, 113 °, 115 °, 117 °, 119 °, or 120 °.
In an alternative embodiment, the first cut is arcuate.
In an alternative embodiment, the first incision has a transverse diameter of 2.4-4mm, preferably 4 mm.
The primary incision is used to provide an operating space for the primary incision knife, and the width of the primary incision knife is usually 1.8mm or 2.4mm, and the transverse diameter of the primary incision (i.e. the width of the incision, and the length in the circumferential direction) is controlled to be 2.4-4mm, so that the primary incision knife has enough width to open the incision or enlarge the incision into and out of the eye. Of course, in actual surgical operations, the operator can cut the first incision appropriately, and the lateral diameter of the incision can be enlarged appropriately to facilitate the movement of the scalpel.
In an alternative embodiment, the first cut has a concave diameter (i.e. the depth of the cut, in the diametrical direction) of 1.8-2mm, preferably 2 mm.
In an alternative embodiment, the second cut is arcuate.
In an alternative embodiment, the transverse diameter of the second incision is 2.4-3mm, preferably 3 mm.
In an alternative embodiment, the second incision has a concavity of 1.8-2mm, preferably 2 mm.
The transverse diameter of the second incision is controlled to be 2.4-3mm, and the concave diameter is controlled to be 1.8-2mm, so that a moving space is provided for the side incision knife, and the eyeball can be conveniently subjected to incision operation.
In an alternative embodiment, the diameter of the keratoscope body is 15-16 mm.
Generally, the cornea has an average diameter of 14mm, and when the cornea body is fitted on the cornea, the edge thereof exceeds the cornea by 1mm to 2mm, and a corneal limbus incision or corneal incision can be conveniently made.
In an optional embodiment, the material of the keratoscope body is silicone hydrogel.
The corneal mirror body is made of a silicon hydrogel material, has a tight base arc and excellent oxygen permeability, and has shielding property and water-bearing property; can reduce irritation to cornea, protect cornea epithelium which is easy to damage or heal, and is beneficial to maintaining the stability of cornea epithelium, and reduce eye surface or corneal postoperative complications.
It should be noted that the macular protective keratoscope provided by the present invention can be manufactured by a conventional manufacturing process in the art, such as a film-pressing manufacturing process, and a non-transparent part is formed by filling carbon fibers in the central part between two layers of soft contact lenses.
In a second aspect, embodiments of the present invention provide an instrument kit for ophthalmic surgery comprising a macular preserving keratoscope as in any one of the preceding embodiments.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the macular-protective keratoscope provided in example 1;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;
fig. 3 is a schematic structural view of the macular-protecting keratoscope provided in example 2.
Icon: 10. 20-macular protective keratoscope; 100-a keratoscope body; 101-opaque portion; 102-a transparent portion; 103-a first incision; 104-second cut.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
Referring to fig. 1 and 2, the present embodiment provides a macular protective cornea mirror 10, which includes: the corneal mirror body 100 is used for being attached to the surface of an eyeball and is matched with the curved surface of the eyeball, and the corneal mirror body 100 is provided with a nontransparent part 101 which is positioned at the central position and used for blocking light rays from passing through and a transparent part 102 which surrounds the nontransparent part 101.
The periphery of the transparent part 102 is provided with a first notch 103 and a second notch 104 which are concave towards the direction of the non-transparent part 101, the first notch 103 and the second notch 104 are both arc-shaped, the transverse diameter (the length of S in figure 1) of the first notch 103 is 4mm, the concave diameter (the length of L in figure 1) is 2mm, the transverse diameter of the second notch 104 is 3mm, the concave diameter is 2mm, the included angle (such as the angle of α in figure 1) between the connecting line of the first notch 103 and the circle center of the keratoscope body and the connecting line of the second notch 104 and the circle center of the keratoscope body is 120 degrees, the first notch 103 provides an operation space for a main notch knife, and the second notch 104 provides an operation space for a side notch.
Wherein, the diameter of the keratoscope body 100 is 15mm, and the diameter of nontransparent portion 101 is 2mm, and the shading structure spare of making by carbon fiber material is filled in nontransparent portion 101, forms the region that can block the light and see through to the effect of realizing blockking light. The diameter of the shading structural part is controlled to be 2 mm. The corneal mirror body 100 is made of silicone hydrogel.
The following can be referred to as a method for manufacturing the keratoscope body 100 provided in this embodiment: the corneal lens is manufactured by using a film pressing manufacturing process, according to the finished product structure, a shading structural member (the diameter is 2mm) made of carbon fibers is filled in the central position between two layers of soft contact lens monomers (silicon hydrogel materials), and the two layers of soft contact lens monomers are pressed to form the corneal lens body. The keratoscope body of this example may also be prepared using processes well known in the art.
The working principle of the macular protective cornea mirror 10 provided in this embodiment is described below:
in the case of cataract surgery, the corneal mirror body 100 is placed on the eyeball of a patient as if it were a contact lens, the nontransparent portion 101 is made to cover the pupil of the patient as much as possible, the operator adjusts (rotates) the corneal mirror body 100 so that the first incision 103 and the second incision 104 are positioned at appropriate positions, the operator operates the main incision knife, performs a surgical incision on the eyeball at a position corresponding to the first incision 103, operates the side incision knife, and performs a surgical incision on the eyeball at a position corresponding to the second incision 104.
Since the opaque portion 101 covers the patient's pupil, the light from the operating microscope can be blocked from penetrating the pupil, thereby preventing the light from directly striking the macula (arrows in fig. 2, representing light). Thus, even if the operation time is long, the macular protection keratoscope 10 provided by the embodiment can prevent the macula from being directly irradiated, and the eyes of the patient are well protected. The first incision 103 and the second incision 104 are arranged to facilitate the incision of the corneoscleral margin or cornea by the operator without affecting the normal incision operation. The keratoscope body 100 is made of silicon hydrogel material, has good oxygen permeability, reduces stimulation to the cornea, effectively protects the corneal epithelium, and reduces complications after ocular surface or corneal surgery.
Example 2
Referring to fig. 3, the macular keratoscope 20 provided in this embodiment has substantially the same structure as the macular keratoscope 10 of embodiment 1, and the difference is that: the included angle between the connecting line of the first notch and the center of the corneal mirror body and the connecting line of the second notch and the center of the corneal mirror body is 120 degrees. The technical effect of the macular protective keratoscope provided by the present example is the same as that of example 1.
Example 3
The macular protective keratoscope provided by the present embodiment is basically the same as the macular protective keratoscope of embodiment 1 in structure, and is different in that: the non-transparent part is dyed into black to realize the effect of blocking light transmission.
The technical effect of the macular protective keratoscope provided by the present example is the same as that of example 1.
Example 4
The macular protective keratoscope provided by the present embodiment is basically the same as the macular protective keratoscope of embodiment 1 in structure, and is different in that: the diameter of the nontransparent part is 1.5mm, and the transverse diameter of the first notch is 2.4 mm.
The technical effect of the macular protective keratoscope provided by the present example is the same as that of example 1.
Example 5
The macular protective keratoscope provided by the present embodiment is basically the same as the macular protective keratoscope of embodiment 1 in structure, and is different in that: the diameter of the non-transparent part is 6mm, and the non-transparent part is dyed into sky blue to realize the effect of blocking light.
The technical effect of the macular protective keratoscope provided by the present example is the same as that of example 1.
Example 6
The macular protective keratoscope provided by the present embodiment is basically the same as the macular protective keratoscope of embodiment 1 in structure, and is different in that: the transverse diameter of the first notch is 2.4 mm.
The technical effect of the macular protective keratoscope provided by the present example is the same as that of example 1.
Example 7
The macular protective keratoscope provided by the present embodiment is basically the same as the macular protective keratoscope of embodiment 1 in structure, and is different in that: the angle between the first and second cuts is 113 °.
The technical effect of the macular protective keratoscope provided by the present example is the same as that of example 1.
Example 8
This example provides a kit for use in ophthalmic surgery comprising the macular protective keratoscope of any one of examples 1-7.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A macular-protecting keratoscope, characterized in that it comprises: the corneal mirror body is used for being attached to the surface of an eyeball and inosculating with the curved surface of the eyeball, and is provided with a nontransparent part which is positioned in the center and used for blocking light rays from entering the pupil and a transparent part which surrounds the nontransparent part;
the periphery of the transparent part is provided with a first notch which is concave towards the non-transparent part and used for providing an operation space for the main notch knife and a second notch which is used for providing an operation space for the side notch.
2. A macular protection keratoscope according to claim 1, characterized in that the diameter of the nontransparent section is 1.5-6mm, preferably 2 mm.
3. The macular protection keratoscope of claim 1 or 2, wherein the nontransparent section is dyed to effect a blocking of light from passing through.
4. The macular protection keratoscope of claim 3, wherein the nontransparent part is colored in a color selected from any one of black, yellow, green, blue, red, pink, purple, white, cyan-green, magenta, pale yellow, pale blue, dark blue, and sky blue;
preferably, the opaque portion is colored in black.
5. The macular protection keratoscope of claim 1 or 2, wherein the opaque portion has a light blocking structure disposed therein, the light blocking structure being made of a material that blocks the transmission of light.
6. A macular protective keratoscope as claimed in claim 5, wherein the material blocking the passage of light is selected from carbon fibers.
7. The macular protection keratoscope of claim 1 or 2, wherein the angle between the line connecting the first incision and the center of the keratoscope body and the line connecting the second incision and the center of the keratoscope body is 90 ° -120 °;
preferably 90 ° or 120 °.
8. The macular protection keratoscope of claim 7, wherein the first incision is arcuate;
preferably, the transverse diameter of the first notch is 2.4-4mm, preferably 4 mm;
preferably, the first incision has a concave diameter of 1.8-2mm, preferably 2 mm.
9. The macular protection keratoscope of claim 7, wherein the second incision is arcuate;
preferably, the transverse diameter of the second notch is 2.4-3mm, preferably 3 mm;
preferably, the concave diameter of the second cut is 1.8-2mm, preferably 2 mm;
preferably, the diameter of the keratoscope body is 15-16 mm;
preferably, the material of the keratoscope body is silicon hydrogel.
10. An instrument kit for ophthalmic surgery, characterized in that it comprises a macular-protecting keratoscope according to any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010286955.3A CN111358619A (en) | 2020-04-13 | 2020-04-13 | Macular protective keratoscope and instrument kit for ophthalmic surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010286955.3A CN111358619A (en) | 2020-04-13 | 2020-04-13 | Macular protective keratoscope and instrument kit for ophthalmic surgery |
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| CN111358619A true CN111358619A (en) | 2020-07-03 |
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| CN202010286955.3A Pending CN111358619A (en) | 2020-04-13 | 2020-04-13 | Macular protective keratoscope and instrument kit for ophthalmic surgery |
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|---|---|---|---|---|
| US4570626A (en) * | 1984-01-20 | 1986-02-18 | Norris John L | Corneal light shield |
| US4848894A (en) * | 1988-06-01 | 1989-07-18 | The United States Of America As Represented By The Secretary Of The Army | Contact lens with laser protection |
| CN1094606A (en) * | 1992-09-29 | 1994-11-09 | 向井克彦 | Corneal sponge and using method thereof |
| WO1999018900A1 (en) * | 1997-10-14 | 1999-04-22 | Eagle Vision, Inc. | Corneal endothelium protective device |
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