CN211433343U

CN211433343U - Femtosecond laser cataract operation marker with level meter

Info

Publication number: CN211433343U
Application number: CN201921936217.8U
Authority: CN
Inventors: 许荣; 常晓可; 王越; 刘欣; 郑亦君; 焦亚; 王胜男; 陈华
Original assignee: Hankou Aier Eye Hospital Co Ltd
Current assignee: Hankou Aier Eye Hospital Co Ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-09-08
Anticipated expiration: 2029-11-11

Abstract

A femtosecond laser cataract surgery marker with a level instrument comprises a first ring, a second ring, a third ring and a graduated scale with a level instrument. The built-in gradienter can ensure that the horizontal axis does not incline, and the centering of the vertical axis is determined according to the relative positions of the three hollow rings and the cornea, so that the center of the corneal limbus, the axis of astigmatism and the incision position are accurately marked, and the transverse diameter of the cornea is measured by using the graduated scale with the gradienter. The utility model has the advantages of high precision, simple operation and wide application.

Description

Femtosecond laser cataract operation marker with level meter

Technical Field

The utility model relates to the technical field of surgical instruments, in particular to a femtosecond laser cataract surgery marker with a level meter.

Background

The errors of the femtosecond laser assisted cataract surgery are mainly caused by inaccurate positioning of a steep meridian incision, error marking of an astigmatism axis, eccentric capsulorhexis and the like. The currently accepted solution is to utilize a surgical navigation system to improve the accuracy of the surgery. However, this method still has some problems: 1 the accuracy of automatic identification is low. Under the conditions of conjunctival vessel excess, blood vessel severe hyperemia and dilatation, conjunctival edema, bulbar conjunctiva severe relaxation, poor blood vessel definition and the like, a navigation system may have identification errors and needs marking intervention before a doctor; 2 hours long. The steps and time of the operation are increased by preoperative measurement, repeated blood vessel alignment in the operation, real-time tracking in the operation, switching of a navigation module and the like; 3 patient selection aspect. Patients with minor eyelid fissure, visual fixation disorder, corneal lesion and the like may not be identified or have large measurement errors; 4 the cost is high, and the popularization of refractive cataract surgery is not good.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a femtosecond laser cataract surgery marker with a level meter, which has the advantages of accuracy, portability, convenient operation, smooth applicable surface and the like.

The utility model provides a following technical solution: the utility model provides a take femto second laser cataract surgery marker of spirit level, includes first ring, the top surface of first ring is close to and is equipped with astigmatic axis position scale mark on the inside wall, fixedly connected with spirit level on the lower lateral wall of first ring, be provided with the millimeter scale on the spirit level, the inboard of first ring is provided with the second ring, the second ring top surface is close to and is equipped with astigmatic axis position scale mark on the lateral wall equally, the inboard of second ring is provided with the third ring, four metal wires that distribute evenly on the lateral wall of third ring, metal wire keeps away from third ring one end fixed connection on the inside wall of second ring, the same connecting rod of fixedly connected with on the lateral wall of second ring and first ring, the other end fixedly connected with handle of connecting rod.

Preferably, the diameter of the first ring is 12.5mm, the diameter of the second ring is 10mm, and the diameter of the third ring is 1 mm.

Preferably, the first ring, the second ring and the third ring are concentrically arranged.

Preferably, the side wall of the handle is provided with anti-slip stripes for increasing the hand-holding friction force.

Preferably, a plurality of snap rings are fixedly connected to the outer side wall below the first circular ring, the snap rings are arranged in a U shape, and the gradienter is connected with the snap rings in a clamping mode.

Preferably, the axis scale marks are arranged in a circular ring shape, and are arranged every 5 degrees.

Preferably, the side surface of the connecting rod is arranged in a Y shape.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a with first ring, second ring and third ring fretwork and concentric circle setting, can mark the limbus center with thin marker, avoid tearing the bag off-center.

2. The built-in gradienter can guarantee that the horizontal axis position does not incline, and the special diameter of three rings sets for and combines the fretwork design, can guarantee that vertical axis position is more accurate, and the first ring inside wall of 12.5mm diameter and the second ring lateral wall of 10mm diameter all are equipped with astigmatism axis position scale mark, guarantee that the patient astigmatism mark of any cornea diameter is all accurate, improve astigmatism axis position and precipitous meridian incision mark's accuracy greatly.

3. After the central positions of the corneal limbus and the corneal limbus at 0 degree and 180 degrees are determined, the transverse diameter of the cornea can be accurately measured by a millimeter scale on the level meter.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is an enlarged view of a portion a of fig. 1 according to the present invention.

Reference numbers in the figures: 1. a first circular ring; 2. a scale; 3. a level gauge; 4. a graduated scale; 5. a second circular ring; 6. a third circular ring; 7. a metal wire; 8. a connecting rod; 9. a handle; 10. a non-slip mat; 11. a snap ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a femtosecond laser cataract surgery marker with a level instrument comprises a first circular ring 1, wherein a circular astigmatism axis scale mark 2 is arranged at the position, close to the inner side wall, of the top surface of the first circular ring 1, each 5 degrees is set once, the level instrument 3 is fixedly connected to the outer side wall below the first circular ring 1, each side surface of the level instrument 3 is provided with a millimeter scale, 0 scale is arranged at the center, each millimeter is set every time, the length is 14mm, the width is 2mm, the level instrument is used for measuring the transverse diameter of a cornea, the first circular ring 1 is connected with the level instrument 3 through a plurality of clamping rings 11, the clamping rings 11 are arranged in a U shape, the level instrument 3 is clamped with the clamping rings 11, a second circular ring 5 is arranged at the inner side of the first circular ring 1, a circular astigmatism axis scale mark 2 is arranged at the position, close to the outer side wall, of the top surface of the second circular ring 5, a third circular ring 6 is arranged at the inner side of the second circular ring 5 and used, first ring 1, second ring 5 and the concentric setting of third ring 6, the diameter is 12.5mm respectively, 10mm, 1mm, third ring 6 is 2.8mm with 1 sagittal interaxial distance of first ring, 4 wire 7 of evenly distributed fixedly connected with on the lateral wall of third ring 6, wire 7 is kept away from 6 one end fixed connection of third ring on the inside wall of second ring 5, the same connecting rod 8 of fixed connection on the lateral wall of second ring 5 and first ring 1, 8 sides of connecting rod are "Y" type, the other end of connecting rod 8 is connected in handle 9, anti-skidding strip 10 has been increased on handle 9, increase handheld frictional force.

The working principle is as follows: the patient sits in front of the slit lamp in a righting way, the forehead and the lower jaw are tightly attached to the slit lamp support, the front is leveled, the eyelids of the eyelid opener are fully exposed to the cornea after the surface anesthetic is dripped, the marker is taken up through the handle 9 and placed on the cornea of the patient, the level 3 is in a horizontal state through fine adjustment of the handle 9, the neutrality of the vertical diameter of the cornea is determined according to the relative positions of the three rings and the cornea, and the marking of the astigmatism axis, the incision position, the corneal limbus center, the 0-degree corneal limbus and the 180-degree corneal limbus is rapidly carried out according to the requirement of surgical design. When necessary, the graduated scale on the level meter is moved upwards or downwards, the lengths of the corneal limbus and the corneal limbus center of 0 degree or 180 degrees are measured, namely the corneal transverse diameter, and the corneal limbus center position checking device is also helpful for checking whether the corneal limbus center position is accurate or not. When the marker is used for marking the right eye (R), the handle is arranged on the left side, and the level is arranged below; for left eye (L) marking, the handle is placed on the right side and the level is above.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take femto second laser cataract surgery marker of spirit level, includes first ring (1), its characterized in that: the top surface of the first ring (1) is provided with astigmatic axis position scale marks (2) close to the inner side wall, the lower side wall of the first ring (1) is fixedly connected with a level meter (3), the level meter (3) is provided with a millimeter scale (4), the inner side of the first ring (1) is provided with a second ring (5), the top surface of the second ring (5) is also provided with astigmatic axis position scale marks (2) close to the outer side wall, the inner side of the second ring (5) is provided with a third ring (6), the upper, lower, left and right sides of the outer side wall of the third ring (6) are fixedly connected with four metal wires (7) which are uniformly distributed, one end of the metal wire (7) far away from the third ring (6) is fixedly connected to the inner side wall of the second ring (5), and the outer side walls of the second ring (5) and the first ring (1) are fixedly connected with the same connecting rod (8), the other end of the connecting rod (8) is fixedly connected with a handle (9).

2. The femtosecond laser cataract surgery marker with a level gauge as claimed in claim 1, wherein: the diameter of the first circular ring (1) is 12.5mm, the diameter of the second circular ring (5) is 10mm, and the diameter of the third circular ring (6) is 1 mm.

3. The femtosecond laser cataract surgery marker with a level gauge as claimed in claim 1, wherein: the first circular ring (1), the second circular ring (5) and the third circular ring (6) are concentrically arranged.

4. The femtosecond laser cataract surgery marker with a level gauge as claimed in claim 1, wherein: and the side wall of the handle (9) is provided with anti-slip stripes (10) for increasing the hand-held friction force.

5. The femtosecond laser cataract surgery marker with a level gauge as claimed in claim 1, wherein: fixedly connected with a plurality of snap ring (11) on the lateral wall of first ring (1) below, snap ring (11) are "U" type setting, spirit level (3) and snap ring (11) joint set up.

6. The femtosecond laser cataract surgery marker with a level gauge as claimed in claim 1, wherein: the axis position scale marks (2) are arranged in a circular ring shape, and are arranged every 5 degrees.

7. The femtosecond laser cataract surgery marker with a level gauge as claimed in claim 1, wherein: the side surface of the connecting rod (8) is Y-shaped.