Corneal interlayer lens implantation separator

Abstract

The utility model belongs to the field of medical instruments, particularly relates to a corneal interlayer lens implantation separator, and aims to solve the problems that an existing separator is complicated in operation, poor in separation effect, easy to damage corneal tissues and the like, inconvenient to adjust an angle between a blade and a handle and poor in applicability. A gear, a gear ring and a threaded cylinder are arranged on the handle, a knife rest is arranged at one end of the handle, a blade is arranged on one side of the knife rest, a through rotating hole is formed in one side of the knife rest, and a limiting column is arranged between the handle and the knife rest. A doctor can conveniently adjust the angle and the position of the blade, accurate separation of cornea layers is achieved, the surgical operation process is greatly simplified, the blade is in a thin and long flat shape, the tail end of the blade is a sharp cutting edge, the separation operation is more precise, the separation depth and range can be accurately controlled, and damage to surrounding tissue is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a corneal interlayer lens implant separator. Background Art

[0002] In ophthalmic surgery, separation of corneal layers and lens implantation are common surgical procedures. As corneal transplantation is an organ transplant with a high success rate and an important means of treatment and restoration of vision, the cornea to be transplanted needs to be cut during the operation, and corneal transplants of different thicknesses need to be made individually, which requires a precise corneal layer separator.

[0003] Existing separator designs often have problems such as complicated operation, poor separation effect, and easy damage to corneal tissue. It is not convenient to adjust the angle between the blade and the handle and has poor applicability. Therefore, designing a corneal interlayer lens implant separator that is easy to operate, has good separation effect, and is highly safe has important practical value and market demand. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art, such as complicated operation, poor separation effect, easy damage to corneal tissue, inconvenience in adjusting the angle between the blade and the handle, and poor applicability, and proposes a corneal interlayer lens implant separator.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A corneal interlayer lens implant separator comprises a handle, one end of the handle is provided with a knife holder, one side of the knife holder is provided with a blade, one side of the knife holder is provided with a through rotation hole, a limiting column is installed between the handle and the knife holder, and the limiting column respectively passes through the rotation hole and the handle;

[0007] One end of the handle is provided with a penetrating movable groove, and an arc-shaped toothed ring is fixedly connected in the movable groove; one end of the tool holder is fixedly connected to a fixed column, and the circumferential outer wall of the fixed column is slidably connected to a gear, and the gear is meshed with the toothed ring; the circumferential outer wall of the fixed column is threadedly connected to a threaded cylinder, and the threaded cylinder is rotatably connected to the gear; one end of the handle is fixedly connected to an arc-shaped movable ring, and the threaded cylinder slides in the movable ring.

[0008] In a possible design, a spring is installed on the circumference of the fixed column, and the spring is located between the tool holder and the gear.

[0009] In a possible design, one end of the limiting column is rotatably connected to a rotating block, and the other end of the limiting column is threadedly connected to a nut, and the rotating block and the nut are respectively located on two sides of the tool holder.

[0010] In a possible design, a suction cup is fixedly connected to one side of the tool holder.

[0011] In a possible design, the blade is in the shape of an elongated flat shape with a sharp blade at the end.

[0012] In a possible design, a handle is fixedly connected to one end of the threaded barrel.

[0013] In the present application, when in use, when the doctor needs to adjust the angle of the blade during surgery, the doctor adjusts the blade to a suitable angle, and then rotates the threaded barrel through the handle. Due to the rotational connection between the threaded barrel and the gear, the gear moves along the circumferential direction of the fixed column. At this time, the gear is in a meshing relationship with the gear ring. The mutual meshing between the gear and the gear ring can effectively fix the position of the blade, thereby fixing the position of the knife holder on the handle;

[0014] Then, the doctor can hold the handle and use the blade to accurately separate the corneal layers. If the angle of the blade needs to be further adjusted, the handle can be used to rotate the threaded barrel again to adjust the angle;

[0015] In addition, the suction cup is used to adsorb the cornea during the operation, which can effectively prevent the corneal tissue from moving or being damaged during the separation process, thereby improving the safety of the operation.

[0016] Beneficial effects:

[0017] In the utility model, the corneal interlayer lens implant separator, through the linkage design of the handle and the blade holder, and the coordination of the gear, the gear ring and the threaded barrel, the doctor can conveniently adjust the angle and position of the blade to achieve accurate separation of the corneal layers, which greatly simplifies the surgical operation process;

[0018] In the utility model, the corneal interlayer lens implant separator has a blade in the shape of an elongated flat shape with a sharp blade at the end, so that the separation operation is more precise, the depth and range of the separation can be accurately controlled, and damage to surrounding tissues is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the corneal interlayer lens implant separator proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the knife holder and blade of the corneal interlayer lens implant separator proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure of the knife holder and handle of the corneal interlayer lens implant separator proposed by the utility model;

[0022] Figure 4This is a schematic diagram of the exploded structure of the connection relationship between the toothed ring and the gear of the corneal interlayer lens implant separator proposed by the utility model.

[0023] In the figure: 1. handle; 2. knife holder; 3. blade; 4. suction cup; 5. fixing column; 6. rotating hole; 7. limiting column; 8. rotating block; 9. nut; 10. gear ring; 11. movable ring; 12. gear; 13. spring; 14. threaded cylinder; 15. handle. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1

[0026] Reference Figure 1-Figure 4 The implant separator comprises: a handle 1, a blade holder 2, a blade 3, a movable groove, a tooth ring 10, a fixed column 5, a gear 12, a spring 13, a threaded cylinder 14, a movable ring 11, a rotating hole 6, a limiting column 7, a rotating block 8, a nut 9, a suction cup 4 and a handle 15;

[0027] A knife holder 2 is provided at one end of the handle 1, and a blade 3 is installed on one side of the knife holder 2. The blade 3 is in the shape of an elongated flat shape, and the end is a sharp blade, which can ensure accurate separation between corneal layers. A rotation hole 6 is provided on one side of the knife holder 2, and a limiting column 7 is installed between the handle 1 and the knife holder 2. The limiting column 7 passes through the rotation hole 6 and the handle 1 respectively to ensure the stability of the knife holder 2 on the handle 1, and also to provide good support when the blade 3 rotates;

[0028] One end of the handle 1 is provided with a through movable groove, in which an arc-shaped toothed ring 10 is fixedly connected, one end of the knife holder 2 is fixedly connected with a fixed column 5, and a gear 12 is slidably connected to the circumferential outer wall of the fixed column 5, and the gear 12 is meshed with the toothed ring 10. By rotating the gear 12, it can slide on the toothed ring 10, thereby driving the knife holder 2 to adjust the angle relative to the handle 1, so that the angle of the blade 3 is adjusted with the limiting column 7 as the center of the circle;

[0029] The circumferential outer wall of the fixed column 5 is threadedly connected with a threaded barrel 14, and the threaded barrel 14 is rotatably connected to the gear 12. When the threaded barrel 14 is rotated, due to the meshing relationship between the gear 12 and the gear ring 10, the gear 12 will move along the circumferential direction of the fixed column 5, thereby driving the angle of the tool holder 2 relative to the handle 1 to be adjusted. One end of the handle 1 is fixedly connected with an arc-shaped movable ring 11, and the threaded barrel 14 slides in the movable ring 11 to ensure the stable movement of the threaded barrel 14.

[0030] The present application can be used in the field of corneal interlayer lenses, and can also be used in other fields applicable to the present application.

[0031] Example 2

[0032] refer to Figure 1-Figure 4 , improved on the basis of Example 1:

[0033] Intercorneal lens implant separator, which is used in the field of intercorneal lenses;

[0034] A spring 13 is installed on the circumference of the fixed column 5. The spring 13 is located between the tool holder 2 and the gear 12. The spring 13 is used to provide pressure between the gear 12 and the gear ring 10 to ensure stable meshing between the two. It is also convenient to separate the gear 12 from the gear ring 10 when meshing is not required.

[0035] One end of the limiting column 7 is rotatably connected to a rotating block 8, and the other end is threadedly connected to a nut 9. The rotating block 8 and the nut 9 are respectively located on both sides of the tool holder 2, and are used to fix the position of the limiting column 7 between the tool holder 2 and the handle 1, thereby ensuring the stability of the tool holder 2 on the handle 1;

[0036] A suction cup 4 is also fixedly connected to one side of the knife holder 2 for adsorbing the cornea during the operation, which can effectively prevent the corneal tissue from moving or being damaged during the separation process, thereby improving the safety of the operation;

[0037] One end of the threaded tube 14 is fixedly connected with a handle 15 , which is convenient for the doctor to operate and adjust the threaded tube 14 , thereby adjusting the angle of the tool holder 2 .

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A corneal interlayer lens implant separator, characterized in that: include: A handle (1), wherein a knife holder (2) is provided at one end of the handle (1), a blade (3) is mounted on one side of the knife holder (2), a rotation hole (6) is provided on one side of the knife holder (2), a limiting column (7) is installed between the handle (1) and the knife holder (2), and the limiting column (7) passes through the rotation hole (6) and the handle (1) respectively; One end of the handle (1) is provided with a penetrating movable groove, in which an arc-shaped toothed ring (10) is fixedly connected; one end of the tool holder (2) is fixedly connected with a fixed column (5), a circumferential outer wall of the fixed column (5) is slidably connected with a gear (12), the gear (12) is meshed with the toothed ring (10), a circumferential outer wall of the fixed column (5) is threadedly connected with a threaded cylinder (14), the threaded cylinder (14) is rotatably connected with the gear (12), and one end of the handle (1) is fixedly connected with an arc-shaped movable ring (11), and the threaded cylinder (14) slides in the movable ring (11).

2. The corneal interlayer lens implant separator according to claim 1, characterized in that: A spring (13) is installed on the circumference of the fixed column (5), and the spring (13) is located between the tool holder (2) and the gear (12).

3. The corneal interlayer lens implant separator according to claim 1, characterized in that: One end of the limiting column (7) is rotatably connected to a rotating block (8), and the other end of the limiting column (7) is threadedly connected to a nut (9), and the rotating block (8) and the nut (9) are respectively located on two sides of the tool holder (2).

4. The corneal interlayer lens implant separator according to claim 2, characterized in that: A suction cup (4) is fixedly connected to one side of the tool holder (2).

5. The corneal interlayer lens implant separator according to claim 1, characterized in that: The blade (3) is in the shape of an elongated flat shape, with a sharp blade at the end.

6. The corneal interlayer lens implant separator according to claim 1, characterized in that: One end of the threaded barrel (14) is fixedly connected to a handle (15).

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