CN214858187U

CN214858187U - Auxiliary device for limbus loosening incision operation

Info

Publication number: CN214858187U
Application number: CN202120400084.3U
Authority: CN
Inventors: 赵阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-11-26
Anticipated expiration: 2031-02-23

Abstract

The utility model relates to a limbus lysis opens operation assistor, including last spacing ring and lower spacing ring, go up the spacing ring with lower spacing ring arranges on same axis, go up the spacing ring with lower spacing ring and connecting piece fixed connection. This limbus is loosened and is cut operation assistor simple structure, convenient operation can provide firm support for the scalpel, through the notched radian of scale accurate control, has effectively ensured the postoperative effect of limbus loosening and cut operation.

Description

Auxiliary device for limbus loosening incision operation

Technical Field

The utility model relates to the field of medical equipment, concretely relates to limbus lysis opens operation assistor.

Background

Astigmatism refers to a refractive state in which parallel light is refracted by the eyeball and imaged to form a circle of least confusion between two focal lines at different positions in space and the focal line, rather than a focal point. The purpose of astigmatism correction is to shorten the distance between two focal lines and finally to form a focus. It is generally accepted that astigmatism of the eye is a complex effect caused by multifactorial changes. This includes: the refractive surfaces have inconsistent surface curvatures, inconsistent curvatures of the retinal surfaces, inconsistent refractive indices of the refractive elements, and optical center deviations. Among these factors, corneal astigmatism has the greatest effect on visual quality.

Limbal relaxing incisions (limbal relaxing incisions) are one method of correcting corneal astigmatism by making a single or paired relaxing corneal incision in the direction of the steepest axis of corneal astigmatism within the limbal vascular arcade, outside the central cornea. The limbal loosening incision requires accurate incision position, continuous, smooth and controllable incision curvature. In general, the operation needs a doctor to hold a scalpel (a cornea depthkeeping knife) for completion, and it is difficult to ensure the stability of the scalpel and the accurate controllability of the incision during the operation, so an auxiliary instrument is needed to cooperate with the scalpel for completion of the operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a limbus is loosened and is opened operation assistor for solve the stability of limbus is loosened and is opened the operation in-process scalpel and the not good problem of notched accurate controllability, guarantee the postoperative effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a limbus debonding incision operation assistor, includes upper limit ring and lower limit ring, upper limit ring and lower limit ring arrange on the same axis, upper limit ring and lower limit ring and connecting piece fixed connection.

As an improvement, the lower limiting ring is provided with a scale for marking radian.

As a further improvement, a circular ring is arranged in the upper limiting ring, the circular ring and the upper limiting ring are coaxial and coplanar, and the circular ring is fixedly connected with the upper limiting ring.

As a further improvement, the inner side of the upper limiting ring is provided with a sliding rail.

As a further improvement, a sliding block is arranged in the sliding rail, and a clamping piece is arranged on the sliding block.

As a further improvement, the clamping piece is a U-shaped clamp, a limiting screw is arranged on the U-shaped clamp and penetrates through two sides of an opening of the U-shaped clamp, and a limiting bolt is arranged on the limiting screw.

As a further improvement, the U-shaped clamp is connected with the sliding block through a hinge.

As a further improvement, the lower limiting ring is fixedly connected with the connecting piece, and the lower limiting ring is fixedly connected with the connecting piece.

As a further improvement, a handle is arranged on the connecting piece.

As a further improvement, the connecting piece is of a conical tubular structure, the end with the larger opening of the conical tube is used as the upper limiting ring, and the end with the smaller opening of the conical tube is used as the lower limiting ring.

The above technical scheme of the utility model following beneficial effect has: simple structure, convenient operation can provide firm support for the scalpel, through the notched radian of scale accurate control, has effectively ensured the postoperative effect of limbus lysis incision operation.

Drawings

Fig. 1 is a schematic structural view of embodiment 1.

FIG. 2 is a schematic sectional view of example 1.

FIG. 3 is a plan view of example 1.

Fig. 4 is a schematic structural view of embodiment 3.

Fig. 5 is a schematic structural view of embodiment 4.

FIG. 6 is a schematic structural view (bottom view) of example 5.

FIG. 7 is a schematic structural view of example 6.

FIG. 8 is a schematic structural view of example 7.

FIG. 9 is a schematic structural view of example 8.

Figure number and name: 1. upper limit ring, 2, lower limit ring, 3, connecting piece, 4, slider, 5, holder, 6, spacing screw, 7, spacing bolt, 8, hinge, 9, eyeball fixing device, 10, handle, 11, ring.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1 to 3, the limbal loosening and incising auxiliary device in this embodiment includes an upper retainer ring 1 and a lower retainer ring 2, which are disposed on the same axis and fixedly connected to a connecting member 3.

When the limbus loosening incision operation is performed, the lower limiting ring is attached to the limbus of a patient, the scalpel passes through the upper limiting ring, the scalpel handle is contacted with the upper limiting ring, the blade is positioned on the circumference formed by the contact of the inner edge of the lower limiting ring and the cornea, and the lower limiting ring is overlooked from the right top, namely as shown in fig. 3; the blade is attached to the inner edge of the lower limiting ring to do arc motion after cutting into the cornea of the patient at a preset position, and the arc incision can be made.

Example 2

This example differs from example 1 in that: the lower limiting ring is provided with a scale for marking radian, so that the radian of the cut can be controlled.

Example 3

As shown in fig. 4, the present embodiment is different from embodiment 2 in that: the inner side of the upper limiting ring 1 is provided with a sliding rail 1a, a sliding block 4 is arranged in the sliding rail, and a clamping piece 5 is arranged on the sliding block. In this embodiment, the holder is the U type and presss from both sides, is equipped with stop screw 6 on the U type presss from both sides, and stop screw passes the U type and presss from both sides open-ended both sides, is equipped with spacing bolt 7 on the stop screw.

When the operation of opening the corneal limbus by loosening is carried out, the lower limiting ring is attached to the corneal limbus of a patient, the scalpel penetrates through the upper limiting ring, the knife handle is arranged in the U-shaped clamp, and the U-shaped clamp is fixedly connected with the knife handle by rotating the limiting screw and the limiting bolt; the blade is made to fall on the circumference formed by the contact of the inner edge of the lower limiting ring and the corneal limbus, the blade is attached to the inner edge of the lower limiting ring to do arc motion after cutting into the cornea of a patient at a preset position, and the arc incision can be made according to the scale marked on the lower limiting ring.

Example 4

As shown in fig. 5, the present embodiment is different from embodiment 3 in that: the clamping piece is connected with the sliding block through a hinge 8. The corneas of different patients often have different corneal curvatures, and the angle of the blade can be adjusted by rotating the hinge, so that the blade is always perpendicular to the section of the corneal limbus.

Example 5

As shown in FIG. 6, this embodiment is different from embodiment 4 in that some rough protrusions are provided on the surface of the lower retainer ring which contacts the cornea as the eyeball fixing means 9.

The eyeball fixing device is arranged on the surface of the eyeball of the patient, so that the lower limiting ring is fixed in position and attached to the corneal limbus, and the influence of the movement of the eyeball of the patient on the operation in the operation is prevented.

Example 6

As shown in fig. 7, the present embodiment is different from embodiment 5 in that: a handle 10 is provided on the connecting member 3. The doctor can use the instrument by holding the handle.

Example 7

As shown in fig. 8, the present embodiment is different from embodiment 2 in that: the upper limit ring is internally provided with a circular ring 11 which is coaxial and coplanar with the upper limit ring and is fixedly connected with the upper limit ring. The annular gap between the upper limit ring and the circular ring forms an annular track.

The scalpel can penetrate through the annular track, and the scalpel handle is clamped by the upper limiting ring and the circular ring, so that the stability of the scalpel handle in the surgical process is maintained.

Example 8

As shown in fig. 9, the present embodiment is different from embodiment 2 in that: the main body of the surgical aid for limbus loosening and incision is formed by a conical tubular structure, the end with a larger opening of the conical tube is used as an upper limiting ring 1, the end with a smaller opening of the conical tube is used as a lower limiting ring 2, the main body of the conical tube is used as a connecting piece 3, a circle of the inner wall of the conical tube along the lower edge is provided with a scale for marking radian, and an arc-shaped incision can be made according to the scale during surgery.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. A limbal loosening and incising operation aid is characterized in that: the upper limiting ring and the lower limiting ring are arranged on the same axis and fixedly connected with a connecting piece.

2. The limbal loosening incision surgical aid of claim 1, wherein: the lower limiting ring is provided with a scale for marking radian.

3. The limbal loosening incision surgical aid of claim 2, wherein: and a circular ring is arranged in the upper limiting ring, is coaxial and coplanar with the upper limiting ring, and is fixedly connected with the upper limiting ring.

4. The limbal loosening incision surgical aid of claim 2, wherein: the inner side of the upper limiting ring is provided with a sliding rail.

5. The limbal loosening incision surgical aid of claim 4, wherein: be equipped with the slider in the slide rail, be equipped with the holder on the slider.

6. The limbal loosening incision surgical aid of claim 5, wherein: the clamping piece is a U-shaped clamp, a limiting screw is arranged on the U-shaped clamp and penetrates through two sides of an opening of the U-shaped clamp, and a limiting bolt is arranged on the limiting screw.

7. The limbal loosening incision surgical aid of claim 6, wherein: the U-shaped clamp is connected with the sliding block through a hinge.

8. The limbal loosening incision surgical aid of claim 2, wherein: the eyeball fixing device is positioned below the lower limiting ring and is fixedly connected with the connecting piece.

9. The limbal loosening incision surgical aid of claim 2, wherein: the connecting piece is provided with a handle.

10. The limbal loosening incision surgical aid of claim 2, wherein: the connecting piece is a conical tubular structure, the end with the larger opening of the conical tube is used as the upper limiting ring, and the end with the smaller opening of the conical tube is used as the lower limiting ring.