Corneal flap flattener
Technical Field
The utility model relates to the field of medical technology, especially, relate to a flap flattener.
Background
The cornea refers to the whole transparent film on the surface of the black eyeball, and the corneal flap refers to a thin layer of cornea which is cut during the operation and is a part of the cornea; astigmatism can develop as a consequence of the flap folding. So-called flap applanators (App lanator) can be designed for loading the compression mold of the cornea inside the annular body; not only the ring body, but also the flattener can be arranged on the support.
The existing applanator has a simple structure and is inconvenient to use, so that the technical problem needs to be overcome, and a corneal flap applanator for overcoming the technical problem needs to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a corneal flap flattener, it not only can be according to the distance of different patients' eyes condition adjustment lens to eyeball, and the medical personnel of can being convenient for moreover change lens at any time, avoid unnecessary cross infection.
In order to realize the purpose, the utility model discloses the technical scheme who takes is: a corneal flap flattener, which comprises a flattener body,
the flattening device body comprises a metal outer ring, a lens and a handle; the inner diameter of the inner ring of the metal outer ring is the same as the diameter of the lens; the lens is arranged in the middle of the metal outer ring, and the handle is arranged on the outer side wall of the metal outer ring;
the lifting control mechanism comprises a positioning frame and a control rod, wherein the positioning frame is arranged on the edge of the lens and used for coating the lens in the positioning frame; the lens is movably connected with the positioning frame;
the positioning frame is connected with the metal outer ring through a plurality of pressure springs;
the control rod is connected with the positioning frame; the control rod and the handle are located at the same vertical position, and an included angle between the control rod and the handle is an acute angle when the control rod and the handle are not used, and the control rod and the handle are connected through a spring.
The corneal flap flattener comprises a positioning frame, a pressing frame and a pressing frame, wherein the positioning frame is an annular telescopic frame and comprises four arc frame bodies and four positioning nails;
one end of the control rod is fixedly connected with the arc frame body;
and a pressure spring is arranged below the positioning nail respectively, and the lower end of the pressure spring is connected with the metal outer ring.
A corneal flap flattener as described above wherein a compressive membrane is disposed between the spacer and the inner ring of the outer metal ring.
The corneal flap flattener as described above, wherein the lens is captured by the arcuate frame body within the inner channel thereof; the lens can be detached by detaching the positioning nails.
A corneal flap flattener as described above, wherein the spacer is formed from a lightweight memory alloy.
Compared with the prior art, the utility model discloses the beneficial effect who produces mainly embodies:
1. the corneal flap flattener of the utility model is provided with the lifting control mechanism, so that the height of the lens of the flattener is adjusted, which indicates that the flattener is suitable for different patients;
2. the utility model relates to a corneal flap flattener, the lens can be replaced, and the disassembled lens can be sterilized for use, thereby avoiding unnecessary cross infection;
3. the utility model has the advantages of ingenious design, simple structure, convenience and practicability; is suitable for being popularized to the medical field.
Drawings
FIG. 1 is a schematic view of a corneal flap flattener of the present invention;
FIG. 2 is another schematic view of a corneal flap flattener of the present invention;
description of reference numerals:
1. a metal outer ring; 2. a lens; 3. a handle; 4. a positioning frame; 5. a control lever; 6. a pressure spring; 7. A spring; 8. an arc-shaped frame body; 9. positioning nails; 10. compressing the film; 11. an inner tank;
Detailed Description
In order to facilitate understanding of the purpose, technical solution and effect of the present invention, the present invention will now be described in further detail with reference to the embodiments.
As shown in fig. 1, the corneal flap flattener of the present invention comprises a flattener body, wherein the flattener body comprises a metal outer ring 1, a lens 2 and a handle 3; the inner diameter of the inner ring of the metal outer ring 1 is the same as the diameter of the lens 2; the lens 2 is arranged in the middle of the metal outer ring 1, and the handle 3 is arranged on the outer side wall of the metal outer ring 1; the lens packaging machine further comprises a lifting control mechanism, wherein the lifting control mechanism comprises a positioning frame 4 and a control rod 5, and the positioning frame 4 is arranged on the edge of the lens 2 and used for wrapping the lens 2 in the positioning frame; the lens 2 is movably connected with the positioning frame 4; the positioning frame 4 is connected with the metal outer ring 1 through a plurality of pressure springs 6; the control rod 5 is connected with the positioning frame 4; the control rod 5 and the handle 3 are located at the same vertical position, and in an unused state, an included angle between the control rod and the handle is an acute angle and is connected with the handle through a spring 7.
When the utility model is used, firstly, the flattening device body is placed on the eyes of one side of a patient, medical staff holds the handle 3 to prevent the lens 2 from contacting the eyeballs of the patient, so that the height of the lens 2 needs to be adjusted according to different conditions of the patient; the medical staff holds the control rod 5 by hand and slowly presses down the control rod 5 until the control rod reaches a proper height for checking; after the lens 2 is used, if the lens 2 needs to be detached, the lens 2 can be taken off the arc-shaped frame body 8 and replaced.
As shown in fig. 1, in the corneal flap flattener of the present invention, the positioning frame 4 is an annular telescopic frame, and includes four arc frame bodies 8 and four positioning nails 9; one end of the control rod 5 is fixedly connected with the arc-shaped frame body 8; and a pressure spring 6 is respectively arranged below the positioning nails 9, and the lower end of the pressure spring 6 is connected with the metal outer ring 1.
The utility model discloses a corneal flap flattener, wherein the positioning frame 4 comprises four arc frame bodies 8 and four positioning nails 9, and the lower parts of the positioning nails 9 are connected with a metal outer ring 1 through pressure springs 6; the spacer 4 can be lifted upwards by the control rod 5, thus serving to lift the lens 2.
As shown in FIG. 1, the utility model discloses a corneal flap flattener, be equipped with compressed film 10 between the inner ring of locating rack 4 and metal outer loop 1.
In order to prevent dust from falling into eyeballs of a patient, the compressed film 10 is arranged between the positioning frame 4 and the metal outer ring 1; when the lens 2 is raised, the compression membrane 10 is stretched, preventing the entry of dust.
As shown in fig. 1, in the corneal flap flattener of the present invention, the lens 2 is clamped in the inner groove 11 by the arc frame body 8; the lens 2 can be disassembled by disassembling the positioning nail 9; the lens 2 is clamped in the inner groove 11 of the arc-shaped frame body 8, so that the lens can be conveniently detached and replaced.
As shown in figure 1, the positioning frame 4 of the corneal flap flattener of the present invention is made of light memory alloy.
The present invention has been further described with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.