Multifunctional anterior segment positioner

Abstract

The utility model discloses a multifunctional anterior eye segment positioner which comprises a mother ring, a bottom ring groove is formed in the bottom of the mother ring, a sub-ring is installed at the lower end of the bottom ring groove, and the sub-ring is one of a corneal trephine positioning ring, a vitrectomy puncture positioning ring or a Yamane crystal suspension operation positioning ring. The corneal trephine positioning ring comprises a corneal trephine positioning ring body, and further comprises two lining rings arranged on the inner wall of the corneal trephine positioning ring body, the calibers of the two lining rings are 8 mm and 9 mm respectively, and the caliber of the corneal trephine positioning ring body is 10 mm; the first through grooves and the second through grooves are formed in the outer wall of the vitrectomy puncture positioning ring, the number of the first through grooves and the number of the second through grooves are both four, the distance between the first through grooves and a ring opening of the vitrectomy puncture positioning ring is 4 mm, and the distance between the second through grooves 12 and the ring opening of the vitrectomy puncture positioning ring is 3.5 mm. The three sub-ring structures are assembled and connected by the mother ring, so that three eye operations can be positioned, the error of the eye operations is reduced, and the accuracy of the eye operations is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a multifunctional anterior eye segment locator. Background Art

[0002] In order to ensure the accuracy of operations on eye organs during ophthalmic surgery, a locator is needed to locate the surgical site.

[0003] For example, the patent application CN2549946Y (entitled "A Surgical Eye Fixator") consists of a suction ring connected to a negative pressure suction tube and a negative pressure generating device via a negative pressure suction port on the handle. During use, the entire cornea is positioned within the ring, facilitating the surgeon's positioning of the corneal optical center. Negative pressure acts on the sclera, minimizing corneal morphology. Post-suction eye pressure can be adjusted to physiological values as needed to minimize damage to ocular structures and functional impairment. This eye fixator ensures that the optical center does not shift or drift during surgery, addressing the shortcomings of conventional excimer laser devices.

[0004] The above-mentioned eyeball fixator is only a ring-shaped structure, and its functionality is single during use, resulting in the problem that it cannot meet the positioning requirements of different eye surgeries. Therefore, we provide a multifunctional anterior segment locator. Utility Model Content

[0005] An object of the present invention is to solve at least the above problems and to provide at least the advantages to be described below.

[0006] Another purpose of the present invention is to provide a multifunctional anterior segment locator, which adopts a mother ring to assemble and connect three sub-ring structures, thereby realizing positioning of three types of eye surgeries, reducing the error of eye surgeries, and improving the accuracy of eye surgeries.

[0007] In order to achieve the above purpose and some other purposes, the present invention adopts the following technical solutions:

[0008] A multifunctional anterior segment locator comprises a mother ring, a bottom ring groove is provided at the bottom of the mother ring, a sub-ring is mounted at the lower end of the bottom ring groove, and the sub-ring is one of a corneal trephine positioning ring, a vitrectomy puncture positioning ring or a Yamane lens suspension positioning ring;

[0009] Also includes:

[0010] An inner lining ring is provided on the inner wall of the corneal trephine positioning ring. Two inner lining rings are provided. The diameters of the two inner lining rings are 8 mm and 9 mm respectively. The diameter of the corneal trephine positioning ring is 10 mm.

[0011] The first through groove and the second through groove are provided on the outer wall of the vitrectomy puncture positioning ring, and four first through grooves and four second through grooves are provided. The first through groove is 4 mm away from the ring opening of the vitrectomy puncture positioning ring, and the second through groove is 3.5 mm away from the ring opening of the vitrectomy puncture positioning ring;

[0012] The needle insertion channel is provided on the outer wall of the Yamane lens suspension positioning ring. There are two needle insertion channels, both of which are integrated with the Yamane lens suspension positioning ring.

[0013] Preferably, a grab handle is provided at the upper end of the mother ring, a connecting end block is provided on the outer wall of one end of the grab handle, and the two connecting end blocks and the grab handle are an integrated structure.

[0014] Preferably, a fastening screw is provided at the connection position between the connecting end block and the mother ring, and the grab handle is fixedly connected to the mother ring through the fastening screw.

[0015] Preferably, an annular magnet is provided on the inner wall of the bottom ring groove, and the annular magnet is embedded and fixedly connected to the inner wall of the bottom ring groove.

[0016] Preferably, a magnet block is attached to the connection position between the inner lining ring and the corneal trephine positioning ring, and the two inner lining rings and the corneal trephine positioning ring are assembled and connected by adsorption of the magnet block.

[0017] Preferably, the four first through grooves and the four second through grooves are distributed in a ring shape with equal intervals about the center point of the vitrectomy puncture positioning ring.

[0018] Preferably, the two needle insertion channels are symmetrically distributed about the center point of the Yamane lens suspension positioning ring.

[0019] The utility model has at least the following beneficial effects:

[0020] The utility model adopts a mother ring assembly to connect three sub-ring structures, thereby realizing the positioning of three eye surgeries, reducing the error of eye surgery, improving the accuracy of eye surgery, and overcoming the problem that the existing eyeball fixator is only a ring structure and has a single functionality during use, resulting in the inability to meet the positioning requirements of different eye surgeries. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the mother ring of the multifunctional anterior segment locator provided by the utility model;

[0022] Figure 2 This is a top view of the connection structure between the mother ring and the corneal trephine positioning ring of the multifunctional anterior segment locator provided by the utility model;

[0023] Figure 3This is a bottom view of the connection structure between the mother ring and the corneal trephine positioning ring of the multifunctional anterior segment locator provided by the utility model;

[0024] Figure 4 This is a top view of the connection structure between the mother ring and the vitrectomy puncture positioning ring of the multifunctional anterior segment locator provided by the utility model;

[0025] Figure 5 This is a side view of the connection structure between the mother ring and the vitrectomy puncture positioning ring of the multifunctional anterior segment locator provided by the utility model;

[0026] Figure 6 This is a top view of the connection structure between the mother ring of the multifunctional anterior segment locator and the positioning ring of the Yamane lens suspension surgery provided by the utility model;

[0027] Figure 7 The utility model is a bottom view of the connection structure between the mother ring of the multifunctional anterior segment locator and the positioning ring of the Yamane lens suspension. DETAILED DESCRIPTION

[0028] The present invention is described in detail below with reference to the accompanying drawings so that those skilled in the art can implement the invention accordingly after reading the description.

[0029] Example 1

[0030] like Figure 1 、 2 3, a multifunctional anterior segment locator, comprising a mother ring 1, a bottom ring groove 2 is provided at the bottom of the mother ring 1, a sub-ring is mounted at the lower end of the bottom ring groove 2, and the sub-ring is a corneal trephine positioning ring 7;

[0031] Also includes:

[0032] The inner lining ring 8 is arranged on the inner wall of the corneal trephine positioning ring 7. There are two inner lining rings 8. The diameters of the two inner lining rings 8 are 8 mm and 9 mm respectively. The diameter of the corneal trephine positioning ring 7 is 10 mm.

[0033] In the above scheme, the sub-ring is a corneal trepanation positioning ring used for positioning during corneal excavation surgery. When two inner liner rings are installed, the diameter of the corneal trepanation positioning ring is 8 mm. When one inner liner ring is installed, the diameter of the corneal trepanation positioning ring is 9 mm. When no inner liner ring is installed, the diameter of the corneal trepanation positioning ring is 10 mm. The split adjustable structure meets the positioning requirements of existing corneal excavation surgery.

[0034] In a preferred embodiment, a grab handle 4 is provided at the upper end of the mother ring 1 , and a connecting end block 5 is provided on the outer wall of one end of the grab handle 4 . The two connecting end blocks 5 and the grab handle 4 are an integral structure.

[0035] In the above solution, the grab handle provided on the upper end of the mother ring serves to facilitate taking the mother ring, and the connecting end block provided on the outer wall of one end of the grab handle serves to facilitate the installation of the end of the grab handle.

[0036] In a preferred embodiment, a fastening screw 6 is provided at the connection position between the connecting end block 5 and the mother ring 1 , and the grab handle 4 is fixedly connected to the mother ring 1 via the fastening screw 6 .

[0037] In the above solution, the fastening screw provided at the connection position between the connecting end block and the mother ring 1 plays the role of connecting the grabbing handle and the mother ring, thereby making it easy to disassemble and install the grabbing handle from the mother ring.

[0038] In a preferred embodiment, an annular magnet 3 is provided on the inner wall of the bottom ring groove 2 , and the annular magnet 3 is embedded and fixedly connected to the inner wall of the bottom ring groove 2 .

[0039] In the above solution, the annular magnet provided on the inner wall of the bottom ring groove plays the role of adsorbing the corneal trephine positioning ring, thereby facilitating the removal and installation of the corneal trephine positioning ring.

[0040] In a preferred embodiment, a magnet block 9 is attached to the connection position between the inner lining ring 8 and the corneal trephine positioning ring 7 , and the two inner lining rings 8 and the corneal trephine positioning ring 7 are assembled and connected by adsorption of the magnet block 9 .

[0041] In the above solution, the magnet block 9 serves to connect the inner lining ring and the corneal trephine positioning ring. Two, one or no inner lining rings can be installed.

[0042] Example 2

[0043] like Figure 1 、 4 5, a multifunctional anterior segment locator, comprising a mother ring 1, a bottom ring groove 2 is provided at the bottom of the mother ring 1, a sub-ring is installed at the lower end of the bottom ring groove 2, and the sub-ring is a vitrectomy puncture positioning ring 10;

[0044] Also includes:

[0045] The first through groove 11 and the second through groove 12 are arranged on the outer wall of the vitrectomy puncture positioning ring 10. There are four first through grooves 11 and four second through grooves 12. The first through groove 11 is 4 mm away from the ring opening of the vitrectomy puncture positioning ring 10, and the second through groove 12 is 3.5 mm away from the ring opening of the vitrectomy puncture positioning ring 10.

[0046] In the above scheme, during conventional puncture, the distance needs to be measured before each incision. After using this vitrectomy puncture positioning ring for positioning marking, 3 or 4 scleral incisions can be completed at one time, shortening the incision time and accurately positioning the incision. The first slot is used for limbal vitrectomy surgery for aphakic eyes, and the second slot is used for limbal vitrectomy surgery for phakic eyes.

[0047] In a preferred embodiment, a grab handle 4 is provided at the upper end of the mother ring 1 , and a connecting end block 5 is provided on the outer wall of one end of the grab handle 4 . The two connecting end blocks 5 and the grab handle 4 are an integral structure.

[0048] In the above solution, the grab handle provided on the upper end of the mother ring serves to facilitate taking the mother ring, and the connecting end block provided on the outer wall of one end of the grab handle serves to facilitate the installation of the end of the grab handle.

[0049] In a preferred embodiment, a fastening screw 6 is provided at the connection position between the connecting end block 5 and the mother ring 1 , and the grab handle 4 is fixedly connected to the mother ring 1 via the fastening screw 6 .

[0050] In the above solution, the fastening screw provided at the connection position between the connecting end block and the mother ring 1 plays the role of connecting the grabbing handle and the mother ring, thereby making it easy to disassemble and install the grabbing handle from the mother ring.

[0051] In a preferred embodiment, an annular magnet 3 is provided on the inner wall of the bottom ring groove 2 , and the annular magnet 3 is embedded and fixedly connected to the inner wall of the bottom ring groove 2 .

[0052] In the above solution, the annular magnet provided on the inner wall of the bottom ring groove plays the role of adsorbing the vitrectomy puncture positioning ring, thereby facilitating the disassembly and installation of the vitrectomy puncture positioning ring.

[0053] In a preferred embodiment, the four first through grooves 11 and the four second through grooves 12 are distributed in a ring shape with equal intervals about the center point of the vitrectomy puncture positioning ring 10 .

[0054] In the above scheme, the four first through grooves and the four second through grooves locate the position of the scleral incision during vitrectomy. The equally spaced annular distribution can ensure the accuracy of scleral cutting during vitrectomy. The first through groove is suitable for vitrectomy opening in phakic eyes, and the second through groove is suitable for vitrectomy opening in aphakic eyes.

[0055] Example 3

[0056] like Figure 1 、 6 7, a multifunctional anterior segment locator, comprising a mother ring 1, a bottom ring groove 2 is provided at the bottom of the mother ring 1, a sub-ring is mounted at the lower end of the bottom ring groove 2, and the sub-ring is a Yamane lens suspension positioning ring 13;

[0057] Also includes:

[0058] The needle insertion channel 14 is provided on the outer wall of the Yamane lens suspension positioning ring 13 . There are two needle insertion channels 14 , and both of the two needle insertion channels 14 are an integrated structure with the Yamane lens suspension positioning ring 13 .

[0059] In the above scheme, the Yamane lens suspension positioning ring is an auxiliary ring for the Yamane lens suspension surgery. Its function is to fix the lens between the sclera and the sclera. Due to manual operation, the needle insertion position and angle, and the length of the sclera travel will vary, resulting in lens position deviation and not necessarily optimal vision. Using this auxiliary ring, the needle insertion and tunnel can be standardized for different patients and different surgeons, and the lens climbing shape on the sclera can be optimized. The lens position and refraction are close to ideal.

[0060] In a preferred embodiment, a grab handle 4 is provided at the upper end of the mother ring 1 , and a connecting end block 5 is provided on the outer wall of one end of the grab handle 4 . The two connecting end blocks 5 and the grab handle 4 are an integral structure.

[0061] In the above solution, the grab handle provided on the upper end of the mother ring serves to facilitate taking the mother ring, and the connecting end block provided on the outer wall of one end of the grab handle serves to facilitate the installation of the end of the grab handle.

[0062] In a preferred embodiment, a fastening screw 6 is provided at the connection position between the connecting end block 5 and the mother ring 1 , and the grab handle 4 is fixedly connected to the mother ring 1 via the fastening screw 6 .

[0063] In the above solution, the fastening screw provided at the connection position between the connecting end block and the mother ring 1 plays the role of connecting the grabbing handle and the mother ring, thereby making it easy to disassemble and install the grabbing handle from the mother ring.

[0064] In a preferred embodiment, an annular magnet 3 is provided on the inner wall of the bottom ring groove 2 , and the annular magnet 3 is embedded and fixedly connected to the inner wall of the bottom ring groove 2 .

[0065] In the above solution, the annular magnet provided on the inner wall of the bottom ring groove plays the role of adsorbing the Yamane crystal suspension positioning ring, thereby facilitating the removal and installation of the Yamane crystal suspension positioning ring.

[0066] In a preferred embodiment, the two needle insertion channels 14 are symmetrically distributed about the center point of the Yamane lens suspension positioning ring 13 .

[0067] In the above scheme, the two needle insertion channels play the role of assisting the needle insertion. The two needle insertion channels are inclined at a fixed angle, and the needle insertion channels form a certain angle with the plane of the ring. The crystal can be fixed in the best position by inserting the needle through these channels to lead out the crystal.

[0068] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A multifunctional anterior segment locator, comprising a mother ring, a bottom ring groove being provided at the bottom of the mother ring, a sub-ring being mounted at the lower end of the bottom ring groove, the sub-ring being one of a corneal trephine positioning ring, a vitrectomy puncture positioning ring, or a Yamane lens suspension positioning ring; Its characteristics are: Also includes: An inner lining ring is provided on the inner wall of the corneal trephine positioning ring. Two inner lining rings are provided. The diameters of the two inner lining rings are 8 mm and 9 mm respectively. The diameter of the corneal trephine positioning ring is 10 mm. The first through groove and the second through groove are provided on the outer wall of the vitrectomy puncture positioning ring. There are four first through grooves and four second through grooves. The first through groove is 4 mm away from the ring opening of the vitrectomy puncture positioning ring, and the second through groove 12 is 3.5 mm away from the ring opening of the vitrectomy puncture positioning ring. The needle entry channel is arranged on the outer wall of the Yamane lens suspension positioning ring. There are two needle entry channels, and both needle entry channels are integrated with the Yamane lens suspension positioning ring.

2. The multifunctional anterior segment locator according to claim 1, characterized in that: The upper end of the mother ring is provided with a grabbing handle, and a connecting end block is provided on the outer wall of one end of the grabbing handle. The two connecting end blocks and the grabbing handle are an integrated structure.

3. The multifunctional anterior segment locator according to claim 2, characterized in that: A fastening screw is provided at the connection position between the connecting end block and the mother ring, and the grabbing handle is fixedly connected to the mother ring through the fastening screw.

4. The multifunctional anterior eye segment locator according to claim 1, characterized in that: An annular magnet is provided on the inner wall of the bottom ring groove, and the annular magnet is embedded and fixedly connected to the inner wall of the bottom ring groove.

5. The multifunctional anterior eye segment locator according to claim 1, characterized in that: A magnet block is attached to the connection position of the inner lining ring and the corneal trephine positioning ring, and the two inner lining rings and the corneal trephine positioning ring are assembled and connected by adsorption of the magnet block.

6. The multifunctional anterior eye segment locator according to claim 1, characterized in that: The four first through grooves and the four second through grooves are distributed in a ring shape with equal intervals about the center point of the vitrectomy puncture positioning ring.

7. The multifunctional anterior segment locator according to claim 1, characterized in that: The two needle insertion channels are symmetrically distributed about the center point of the Yamane lens suspension positioning ring.

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