CN212346811U - Intraocular lens clamping device - Google Patents
Intraocular lens clamping device Download PDFInfo
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- CN212346811U CN212346811U CN202022936933.5U CN202022936933U CN212346811U CN 212346811 U CN212346811 U CN 212346811U CN 202022936933 U CN202022936933 U CN 202022936933U CN 212346811 U CN212346811 U CN 212346811U
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- intraocular lens
- sliding block
- positioning rod
- sliding
- chuck
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Abstract
The utility model discloses an intraocular lens clamping device, a sliding groove is arranged on a base, a sliding block is connected in the sliding groove, one end of a positioning rod is fixedly connected with the bottom of the sliding groove, the other end is movably inserted in a blind hole at the bottom of the sliding block, a compression spring is sleeved on the positioning rod, the two ends of the compression spring respectively abut against the bottom of the sliding groove and the bottom of the blind hole and are used for driving the sliding block to slide forwards along the positioning rod, a first chuck is arranged at the top of the sliding block, a second chuck matched with the first chuck is correspondingly arranged at the top of the sliding groove, when the two chucks are closed, the two chucks are contacted with an intraocular lens optical area to suspend the intraocular lens peripheral supporting structure or are contacted with the intraocular lens peripheral supporting structure to suspend the intraocular lens peripheral supporting structure, the contact area between the two chucks and the intraocular lens adopts soft, the safety is high, and the method is suitable for rapidly detecting the artificial lens in the production process and the inspection process.
Description
Technical Field
The utility model relates to the technical field of medical equipment processing, especially, relate to an intraocular lens clamping device.
Background
The artificial lens is a medical appliance used for replacing the diseased crystalline lens of a patient in cataract operation, thereby enabling the patient to reappear brightly and recover the vision. The structure of an intraocular lens typically includes a central circular optical zone and a peripheral support structure. Intraocular lenses require measurement of the thickness of their circular optical zone and peripheral support structure during production and inspection to determine the thickness profile of the intraocular lens' circular optical zone and peripheral support structure to determine the stability of the production process.
At present, the intraocular lens is gradually improved from a hard intraocular lens made of PMMA material to a soft intraocular lens made of hydrophilic or hydrophobic polyacrylate material, and compared with the hard intraocular lens made of PMMA material, the soft intraocular lens can be implanted into a human eye in a folded state, so that the size of an operation incision can be greatly reduced, the operation complications can be effectively reduced, and the recovery time of a patient can be shortened. However, since the soft intraocular lens has a soft surface and is easily deformed, the thickness of the soft intraocular lens cannot be accurately measured using a conventional tool such as a vernier caliper, and even if the measurement is performed using an optical instrument or the like, the intraocular lens needs to be held at a fixed position for easy detection. However, at present, no clamping device particularly suitable for measuring the thickness of the intraocular lens exists, the intraocular lens is fixed by using a sucker, and the thickness of an optical area cannot be measured because the adsorption position is in the optical area; the lens is clamped by using tweezers, the stress is not well controlled, and the surface of the soft intraocular lens is easily scratched. Therefore, there is a need to develop an intraocular lens holding device to solve the above technical problems.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an intraocular lens clamping device, simple structure, the simple operation can not harm intraocular lens in the use, and the security is high, is fit for carrying out short-term test to intraocular lens in production process and testing process, has wide application prospect, is favorable to popularizing and applying.
In order to achieve the above purpose, the utility model provides an artificial lens holding device, which comprises a base, a slide block, a compression spring, a positioning rod and a chuck, the base is provided with a chute, the chute is connected with a slide block in a sliding way, one end of the positioning rod is fixedly connected with the bottom of the chute, the other end of the positioning rod is movably inserted in a blind hole at the bottom of the slide block, the compression spring is sleeved on the positioning rod, the two ends of the positioning rod are respectively propped against the bottom of the sliding chute and the bottom of the blind hole and are used for driving the sliding block to slide forwards along the positioning rod, the top of the sliding block is provided with a first chuck, the top of the sliding chute is correspondingly provided with a second chuck matched with the first chuck, when the two chucks are closed, the two chucks are contacted with the optical area of the artificial lens to suspend the supporting structure around the artificial lens, or the artificial lens is contacted with the artificial lens peripheral supporting structure to suspend the optical area of the artificial lens, and the contact area of the two chucks and the artificial lens is made of soft material.
Preferably, the first chuck and the second chuck are both in a concave shape, a cavity for accommodating the optical area of the intraocular lens is formed by the depression in the middle of the first chuck and the second chuck, and the contact surfaces of the first chuck and the second chuck on the two sides of the cavity are used for clamping the peripheral supporting structure of the intraocular lens.
Preferably, the first chuck and the second chuck are both in a convex shape, cylindrical clamping parts are respectively arranged at the middle positions of the first chuck and the second chuck, the end faces of the cylindrical clamping parts are both concave faces and are used for clamping the optical area of the intraocular lens, and cavities on two sides of the cylindrical clamping parts are used for accommodating the peripheral supporting structure of the intraocular lens.
Preferably, the sliding blocks and the sliding grooves are rectangular in flat section, slope-shaped protruding portions are arranged at the bottoms of the two sides of each sliding block, and slope-shaped sliding ways matched with the slope-shaped protruding portions of the sliding blocks are arranged at the bottoms of the two sides of each sliding groove so as to achieve sliding connection between the sliding blocks and the sliding grooves.
Preferably, the upper surface of the slider is provided with a handrail for moving the slider.
Preferably, the soft material is silica gel, rubber, PVC soft rubber, TPE or polyurethane.
Preferably, the base is rectangular.
The utility model provides a pair of artificial lens clamping device has following beneficial effect.
1. The utility model discloses simple structure, the simple operation can not harm intraocular lens in the use, and the security is high, is fit for carrying out short-term test to intraocular lens in production process and testing process, has wide application prospect, is favorable to popularizing and applying.
2. The utility model has the advantages that the arrangement of the positioning rod and the compression spring ensures that the compression spring can not be separated from the positioning rod when being compressed, the compression spring is prevented from being bent to two sides at will, and meanwhile, the positioning rod also has a certain guiding function, so that the sliding block can slide back and forth in the sliding groove along the positioning rod; the slope-shaped protruding part is matched with the slope-shaped slideway, so that the sliding block is further ensured to stably slide in the sliding groove.
3. The contact area of the two chucks and the artificial lens of the utility model adopts soft materials, which can effectively prevent the chucks from scratching the surface of the artificial lens and has better protection effect on the artificial lens.
Drawings
FIG. 1 is a schematic view of a first embodiment of an intraocular lens holding device according to the present invention in an open position;
FIG. 2 is a schematic view of a first embodiment of an intraocular lens holding device according to the present invention in a held state;
FIG. 3 is a schematic view of a second embodiment of an intraocular lens holding device according to the present invention in an open position;
FIG. 4 is a schematic view of a second embodiment of an intraocular lens holding device according to the present invention in a held state;
figure 5 is a sectional view of the combination of the ramp shaped projection and the ramp shaped track of the first (second) embodiment of an intraocular lens gripping device provided by the present invention.
In the figure:
1. the base 2, the sliding block 3, the compression spring 4, the positioning rod 5, the first chuck 6, the handrail 7, the cavity 8, the cavity 9, the sliding groove 10, the intraocular lens optical area 11, the intraocular lens peripheral supporting structure 12, the cylindrical clamping part 13, the second chuck 14 and the slope-shaped convex part.
Detailed Description
The present invention will be further described with reference to the following specific embodiments and accompanying drawings to facilitate understanding of the present invention.
Example 1:
fig. 1-2 are schematic views of a first embodiment of an intraocular lens holding device according to the present invention in an open state and a holding state, respectively. The artificial crystalline lens clamping device comprises a base 1, a sliding block 2, a compression spring 3, a positioning rod 4 and chucks, wherein the base 1 is rectangular, a sliding groove 9 is formed in the base 1, the sliding block 2 is connected in the sliding groove 9 in a sliding mode, one end of the positioning rod 4 is fixedly connected with the bottom of the sliding groove 9, the other end of the positioning rod 4 is movably inserted into a blind hole in the bottom of the sliding block 2, the compression spring 3 is sleeved on the positioning rod 4, two ends of the compression spring abut against the bottom of the sliding groove 9 and the bottom of a blind hole respectively and are used for driving the sliding block 2 to slide forwards along the positioning rod 4, a first chuck 5 is arranged at the top of the sliding groove 2, a second chuck 13 matched with the first chuck 5 is correspondingly arranged at the top of the sliding groove 9, when the two chucks are closed, the two chucks are in contact with a peripheral supporting structure 11 of the artificial crystalline lens to enable an artificial crystalline lens optical area 10 to be suspended, the first chuck 5 and the And the contact surfaces of the first chuck 5 and the second chuck 13 on the two sides of the cavity 8 are used for clamping the intraocular lens peripheral supporting structure 11. The contact area of the two chucks and the artificial lens is made of soft materials, and the soft materials are silica gel, rubber, PVC soft rubber, TPE or polyurethane. The flat sections of the sliding block 2 and the sliding groove 9 are rectangular, the bottom parts of two sides of the sliding block 2 are provided with slope-shaped protruding parts 14, and the bottom parts of two sides of the sliding groove 9 are provided with slope-shaped slideways matched with the slope-shaped protruding parts 14 of the sliding block 2 so as to realize sliding connection between the sliding block 2 and the sliding groove 9. The upper surface of the sliding block 2 is provided with a handrail 6 which is convenient for moving the sliding block 2. Fig. 5 is a sectional view of the combination of the ramp-shaped protrusion and the ramp-shaped rail of the first embodiment of an intraocular lens holding device according to the present invention.
The utility model discloses a use method does:
when the artificial lens measuring device is used, the armrest 6 is held by hand, the sliding block 2 is shifted, the two chucks are separated, the artificial lens is placed between the two chucks, the artificial lens peripheral supporting structure 11 is aligned to the contact surface of the first chuck 5 and the second chuck 13 on the two sides of the cavity 8, the sliding block 2 is slightly released, the sliding block 2 slides forwards under the action of the compression spring 3, the two chucks are finally folded, the artificial lens peripheral supporting structure 11 is finally fixed, and at the moment, the artificial lens optical area 10 is in a free state and can be used for measuring the thickness of the artificial lens.
Example 2:
referring to fig. 3-4, there are shown a schematic view of a second embodiment of an intraocular lens holding device according to the present invention in an open position and a schematic view of a holding position. The artificial crystalline lens clamping device comprises a base 1, a sliding block 2, a compression spring 3, a positioning rod 4 and chucks, wherein the base 1 is rectangular, a sliding groove 9 is arranged on the base 1, the sliding block 2 is connected in the sliding groove 9 in a sliding manner, one end of the positioning rod 4 is fixedly connected with the bottom of the sliding groove 9, the other end of the positioning rod 4 is movably inserted in a blind hole at the bottom of the sliding block 2, the compression spring 3 is sleeved on the positioning rod 4, two ends of the compression spring are respectively abutted against the bottom of the sliding groove 9 and the bottom of the blind hole and used for driving the sliding block 2 to slide forwards along the positioning rod 4, the top of the sliding block 2 is provided with a first chuck 5, the top of the sliding groove 9 is correspondingly provided with a second chuck 13 matched with the first chuck 5, when the two chucks are closed, the two chucks are in contact with an artificial crystalline lens optical area 10 to enable an artificial crystalline lens peripheral supporting structure 11 to be suspended, the first chuck, the end surface of the cylindrical clamping part 12 is concave and is used for clamping the intraocular lens optical area 10, and the cavities 7 at the two sides of the cylindrical clamping part 12 are used for accommodating the intraocular lens peripheral supporting structure 11. The contact area of the two chucks and the artificial lens is made of soft materials, and the soft materials are silica gel, rubber, PVC soft rubber, TPE or polyurethane. The flat sections of the sliding block 2 and the sliding groove 9 are rectangular, the bottom parts of two sides of the sliding block 2 are provided with slope-shaped protruding parts 14, and the bottom parts of two sides of the sliding groove 9 are provided with slope-shaped slideways matched with the slope-shaped protruding parts 14 of the sliding block 2 so as to realize sliding connection between the sliding block 2 and the sliding groove 9. The upper surface of the sliding block 2 is provided with a handrail 6 which is convenient for moving the sliding block 2. Fig. 5 is a sectional view of a combination of a ramp protrusion and a ramp track of a second embodiment of an intraocular lens holding device according to the present invention.
When the artificial lens clamping device is used, the handrail 6 is held by a hand, the sliding block 2 is shifted, the two chucks are separated, the artificial lens is placed between the two chucks, the artificial lens optical area 10 is aligned to the concave surface of the cylindrical clamping part 12, the sliding block 2 is slightly loosened, the sliding block 2 slides forwards under the action of the compression spring 3, the two chucks are finally folded, the artificial lens optical area 10 is finally fixed, and at the moment, the artificial lens peripheral supporting structure 11 is in a free state and can be used for measuring the thickness of the artificial lens.
The utility model discloses simple structure, the simple operation can not harm intraocular lens in the use, and the security is high, is fit for carrying out short-term test to intraocular lens in production process and testing process, has wide application prospect, is favorable to popularizing and applying. The utility model has the advantages that the arrangement of the positioning rod 4 and the compression spring 3 ensures that the compression spring 3 can not be separated from the positioning rod 4 when being compressed, the compression spring 3 is prevented from being bent to two sides at will, and meanwhile, the positioning rod 4 also has a certain guiding function, so that the sliding block 2 can slide back and forth along the positioning rod 4 in the sliding groove 9; the slope-shaped bulge 14 is matched with the slope-shaped slideway, so that the sliding block 2 is further ensured to stably slide in the sliding groove 9. The contact area of the two chucks and the artificial lens of the utility model adopts soft materials, which can effectively prevent the chucks from scratching the surface of the artificial lens and has better protection effect on the artificial lens.
The present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. An artificial lens holding device is characterized by comprising a base, a slide block, a compression spring, a positioning rod and a chuck, the base is provided with a chute, the chute is connected with a slide block in a sliding way, one end of the positioning rod is fixedly connected with the bottom of the chute, the other end of the positioning rod is movably inserted in a blind hole at the bottom of the slide block, the compression spring is sleeved on the positioning rod, the two ends of the positioning rod are respectively propped against the bottom of the sliding chute and the bottom of the blind hole and are used for driving the sliding block to slide forwards along the positioning rod, the top of the sliding block is provided with a first chuck, the top of the sliding chute is correspondingly provided with a second chuck matched with the first chuck, when the two chucks are closed, the two chucks are contacted with the optical area of the artificial lens to suspend the supporting structure around the artificial lens, or the artificial lens is contacted with the artificial lens peripheral supporting structure to suspend the optical area of the artificial lens, and the contact area of the two chucks and the artificial lens is made of soft material.
2. The device of claim 1, wherein the first and second jaws are concave, the recess at the middle of the first and second jaws forming a cavity for receiving the optical zone of the intraocular lens, and the contact surfaces of the first and second jaws on the two sides of the cavity are used for holding the peripheral intraocular lens supporting structure.
3. The device as claimed in claim 1, wherein the first and second jaws are convex, a cylindrical holding portion is provided at a middle position of the first and second jaws, the end surface of the cylindrical holding portion is concave for holding the intraocular lens optical area, and the cavities at both sides of the cylindrical holding portion are used for accommodating the intraocular lens peripheral supporting structure.
4. The device as claimed in claim 2 or 3, wherein the sliding block and the sliding groove are rectangular in cross section, the bottom of the sliding block is provided with a slope-shaped protrusion, and the bottom of the sliding groove is provided with a slope-shaped slideway matched with the slope-shaped protrusion of the sliding block, so as to realize the sliding connection between the sliding block and the sliding groove.
5. An intraocular lens gripping apparatus according to claim 4, wherein the upper surface of the slider is provided with handrails to facilitate movement of the slider.
6. The intraocular lens holding device of claim 5 wherein the soft material is silicone, rubber, PVC soft rubber, TPE or polyurethane.
7. The intraocular lens holding device of claim 6 wherein said base is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022936933.5U CN212346811U (en) | 2020-12-10 | 2020-12-10 | Intraocular lens clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022936933.5U CN212346811U (en) | 2020-12-10 | 2020-12-10 | Intraocular lens clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212346811U true CN212346811U (en) | 2021-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022936933.5U Active CN212346811U (en) | 2020-12-10 | 2020-12-10 | Intraocular lens clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212346811U (en) |
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2020
- 2020-12-10 CN CN202022936933.5U patent/CN212346811U/en active Active
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