CN219147710U

CN219147710U - Iris expansion device

Info

Publication number: CN219147710U
Application number: CN202222823575.6U
Authority: CN
Inventors: 宋爽; 喻晓兵; 王磊; 师自安; 张鹏
Original assignee: Beijing Hospital
Current assignee: Beijing Hospital
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-06-09
Anticipated expiration: 2032-10-25

Abstract

The present utility model provides an iris expansion device comprising: the expansion ring is arranged in a non-closed ring shape, and can be in a straight line or a state with a certain radian during stretching; and a C-shaped concave is arranged on the outer side of the edge of the expansion ring. The iris dilation device provided by the utility model is bendable and easy to operate, the non-closed circular ring is straightened into a straight line, the non-closed circular ring is easier to enter and exit the eye, the cornea incision is smaller, the damage to the eye tissue is smaller, the iris is dilated in a light, thin, soft and elastic manner, the iris is dilated efficiently, the pupil is dilated gently, the damage to the iris of the human eye is difficult to cause, and the iris dilation device can be connected with a push injector, so that the iris is easier to enter the eye.

Description

Iris expansion device

Technical Field

The utility model relates to a medical appliance, in particular to an ophthalmic surgical appliance.

Background

Clinically, many ophthalmic diseases need surgery treatment, most surgery needs to expand iris before surgery in order to ensure sufficient observation and operation space in surgery, but the existing iris expansion tool is not easy to operate, is difficult to enter and exit the eyes, has large cornea incision, large damage to eye tissues, low efficiency and easy damage to eyes.

Disclosure of Invention

In order to overcome the problems in the related prior art, the utility model provides an iris dilation device which is bendable and easy to operate, and a non-closed circular ring is straightened into a straight line, so that the iris dilation device is easier to enter and exit an eye, has smaller cornea incision, smaller damage to eye tissues, is light, thin, soft and elastic, can efficiently dilate the iris, mildly dilate the pupil, is difficult to damage the iris of a human eye, can be connected with an injector, and is easier to enter the eye.

An iris dilation device comprising:

the expansion ring is arranged in a non-closed ring shape, and can be in a straight line or a state with a certain radian during stretching; and a C-shaped concave is arranged on the outer side of the edge of the expansion ring.

Preferably, the edges of the C-shaped recess are provided with a first flange and a second flange.

Preferably, the edge bottom of the expansion ring is a first arc-shaped surface.

Optionally, the top of the edge of the expansion ring is a second arc-shaped surface.

Preferably, the inner side of the edge of the expansion ring is provided with a third flange at the bottom of the edge.

Preferably, the inner side of the edge of the expansion ring is provided with a fourth flange at the top of the edge.

Preferably, the iris expansion device further comprises a pushing booster, the pushing booster comprises:

the accommodating cavity is used for accommodating the expansion ring in a straight line state or a state with a certain radian;

the liquid containing cavity is sleeved at the rear end of the containing cavity, is tightly attached to the side wall of the rear end of the containing cavity, and can move relative to the containing cavity to push the expansion ring; the rear end of the liquid containing cavity is provided with a piston, and the piston is tightly attached to the inner wall of the liquid containing cavity and is used for containing liquid;

the diaphragm is arranged at the opening of the liquid containing cavity or at the front end of the liquid containing cavity so as to block liquid;

a lancet, including a needle tip and a needle handle, is disposed in the piston for puncturing the septum.

Preferably, the septum has a connecting portion connected with the receiving cavity and a piercing portion that can be pierced by the lancet.

Preferably, the liquid is stored in the liquid containing cavity or the liquid is injected into the liquid containing cavity by puncturing the piston.

Preferably, the iris expansion device further comprises a shell, wherein the shell is sleeved outside the accommodating cavity, and the front end opening of the shell is tightly attached to the outer wall of the accommodating cavity so as to fix the accommodating cavity; the rear end of shell inner wall is equipped with first spacing ring, hold the liquid chamber and be equipped with the second spacing ring in the rear end that keeps away from the holding chamber, first spacing ring and second spacing ring mutually support in order to restrict the removal of holding the liquid chamber in the shell.

The technical scheme provided by the utility model mainly has the following beneficial effects:

the iris expansion device provided by the utility model is bendable and easy to operate, the non-closed circular ring is straightened into a straight line, the non-closed circular ring is easier to enter and exit the eye, the cornea incision is smaller, the damage to the eye tissues is smaller, the iris expansion device is light, thin, soft and elastic, the iris expansion device is efficient, the pupil is gently expanded, the damage to the iris of the human eye is difficult to cause, and the iris expansion device can be connected with a push injector, so that the iris can be more easily entered into the eye. The iris expansion device has important clinical application value. It should be noted that the iris dilation device of the present utility model can be applied to any medical procedure where it is desired to dilate the iris.

The features and advantages of the present utility model will be described in detail in the detailed description that follows.

Drawings

Fig. 1 is a schematic diagram of an iris expansion apparatus according to the present utility model.

Fig. 2 (a) is a schematic cross-sectional view of an stent ring of the iris stent of the present utility model.

Fig. 2 (b) is a schematic cross-sectional view of another stent ring of the iris stent of the present utility model.

Fig. 3 is a schematic view of another iris expansion apparatus according to the present utility model.

Fig. 4 is a schematic view of a membrane of an iris dilation device of the present utility model.

Reference numerals illustrate:

1. expansion ring, 11, C-shaped concave, 12, first flange, 13, second flange, 14, third flange, 15, fourth flange, 16, first arc surface, 17, second arc surface, 2, holding cavity, 3, liquid holding cavity, 31, second spacing ring, 32, piston, 4, diaphragm, 41, connecting part, 42, needling part, 5, needle, 51, needle tip, 52, needle handle, 6, outer shell, 61, first spacing ring.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the present utility model, unless otherwise indicated, the use of directional terms such as "upper, lower, left, right, inner, outer, far, near" generally refer to a direction or positional relationship based on that shown in the drawings, for convenience of description and simplification of the description only, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, the terms "comprise," "include," and any variations thereof, are intended to cover a non-exclusive inclusion.

The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.

As shown in fig. 1, an iris expansion apparatus, comprising: the expansion ring 1 is arranged in a non-closed ring shape, and can be in a straight line or a state with a certain radian during stretching; the outer side of the edge of the expansion ring 1 is provided with a C-shaped recess 11, as shown in fig. 2 (a) and 2 (b).

In the utility model, the shape of the expansion ring 1 is set to be a non-closed ring shape in a standing state, and can be a regular ring shape or an elliptical ring shape, and the expansion ring 1 can be in a straight line or a state with a certain radian when being stretched, so that the iris can be expanded efficiently, and the pupil can be expanded mildly. In some embodiments, when the stent ring 1 is a circular ring, the inner diameter is less than or equal to 8mm. In the utility model, the material of the expansion ring 1 is medical elastic material, is light, thin, soft and elastic, for example, can be silica gel, so as to be beneficial to efficiently expanding the iris and mildly expanding the pupil.

In the utility model, the C-shaped concave 11 is arranged on the outer side of the edge of the expansion ring 1, so that the iris can be expanded efficiently, and the pupil can be expanded mildly.

In the utility model, the outer side of the edge of the expansion ring 1 is provided with a C-shaped recess which can be subjected to softening or passivation treatment. In some preferred embodiments, the C-shaped recess 11 is provided with a first flange 12 and a second flange 13, as shown in FIGS. 2 (a) and 2 (b).

In the present utility model, the shape of the face of the edge bottom of the expansion ring 1 can be selected within a wide range. In some preferred embodiments, as shown in fig. 2 (a) and 2 (b), the bottom of the edge of the expansion ring 1 is a first arcuate surface 16. In other preferred embodiments, the top of the edge of the expansion ring 1 is a second arcuate surface 17.

In the present utility model, the inner side of the edge of the expansion ring 1 may be provided with no flange at the bottom of the edge, or may be provided with a flange. As shown in fig. 2 (a) and 2 (b), in some preferred embodiments, the inside of the rim of the expansion ring 1 is provided with a third flange 14 at the bottom of the rim. In other preferred embodiments, the inner side of the rim of the expansion ring 1 is provided with a fourth flange 15 at the top of the rim.

In the present utility model, the iris expansion device may be only the expansion ring 1, which can be used together with the existing pushing aid.

In some preferred embodiments of the present utility model, as shown in fig. 3, the iris dilation device further comprises a pushing aid, the pushing aid comprising:

a receiving chamber 2 for receiving the expansion ring 1 in a straight state or in a state of a certain arc;

the liquid containing cavity 3 is sleeved at the rear end of the containing cavity 2, is tightly attached to the side wall of the rear end of the containing cavity 2, and can move and push the expansion ring 1 relative to the containing cavity 2; the rear end of the liquid containing cavity 3 is provided with a piston 32, and the piston 32 is tightly attached to the inner wall of the liquid containing cavity 3 and is used for containing liquid;

the diaphragm 4 is arranged at the opening of the liquid containing cavity 3 or at the front end of the liquid containing cavity 3 so as to block liquid;

a needle 5, comprising a needle tip 51 and a needle handle 52, is provided in the piston for piercing the membrane.

In the present utility model, the housing chamber 2 is shaped to accommodate the expansion ring 1 in a straight or curved state. The existing pushing assisting component can be arranged in the accommodating cavity 2 so as to push the expansion ring 1 conveniently, thereby efficiently expanding the iris and mildly expanding the pupil.

In the utility model, the liquid containing cavity 3 is sleeved at the rear end of the containing cavity 2, and the front end part of the liquid containing cavity 3 is tightly attached to the inner side wall of the rear end of the containing cavity 2; the rear end of the liquid containing cavity 3 is provided with a piston 32, and the piston 32 is tightly attached to the inner wall of the liquid containing cavity 3 and is used for containing liquid. In the present utility model, the shape of the cross section of the cavity is not particularly limited, but is preferably circular as shown in fig. 3. In the present utility model, the piston 32 can be tightly attached to ensure no leakage of liquid.

In the utility model, a diaphragm 4 is arranged at the opening of the liquid containing cavity 3 or at the front end of the liquid containing cavity 3 to block liquid. By liquid barrier is meant herein the barrier to liquid prior to use.

In the present utility model, as shown in fig. 4, the septum has a connection portion 41 and a piercing portion 42, the connection portion 41 is connected to the housing chamber 2, and the piercing portion 42 can be pierced by the lancet 5. In some preferred embodiments, the connecting portion 41 is relatively rigid, less prone to puncture, and more conducive to pushing the stent ring 1 after being left behind.

In some embodiments, the liquid is stored in the liquid containing chamber 3 or the liquid is injected into the liquid containing chamber by puncturing the piston 32. In some preferred embodiments, the liquid can be added by piercing the plunger 32 with a syringe or the like.

In some embodiments, the iris expansion device further comprises a housing 6 which is sleeved outside the accommodating cavity 2, and the front end opening of the housing 6 is tightly fitted with the outer wall of the accommodating cavity 2 to fix the accommodating cavity 2; the rear end of the inner wall of the shell 6 is provided with a first limiting ring 61, the rear end of the liquid containing cavity 3 far away from the containing cavity 2 is provided with a second limiting ring 31, and the first limiting ring 61 and the second limiting ring 31 are mutually matched to limit the movement of the liquid containing cavity 3 in the shell.

In the present utility model, the iris dilation device can be repeatedly sterilized for use.

From the above, it can be seen that the iris dilation device of the present utility model is flexible and easy to operate, the non-closed ring is straightened into a straight line, the entrance into and the exit from the eye are easier, the cornea incision is smaller, the damage to the eye tissue is smaller, the iris dilation device is light, thin, soft and elastic, the iris is dilated efficiently, the pupil is dilated gently, the damage to the iris of the human eye is not easy to be caused, and the iris dilation device can be connected with a syringe, so that the entrance into the eye is easier. The iris expansion device has important clinical application value. It should be noted that the iris dilation device of the present utility model can be applied to any medical procedure where it is desired to dilate the iris.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," etc. are to be construed broadly, and may be, for example, fixedly connected or detachably connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. While various modifications, equivalents, and improvements may be made by those skilled in the art within the spirit and principles of the utility model, and in order to avoid unnecessarily obscuring the present utility model, the various possible combinations are not described further, but are presented as such and are contemplated to be within the scope of the present utility model.

Claims

1. An iris dilation device, comprising:

2. The iris expansion device of claim 1, wherein the edges of the C-shaped recess are provided with a first flange and a second flange.

3. The iris expansion apparatus of claim 1, wherein the bottom of the rim of the expansion ring is a first arcuate surface.

4. An iris expansion device as in claim 3, wherein the top of the rim of the expansion ring is a second arcuate surface.

5. The iris expansion device of claim 1, wherein the inner side of the rim of the expansion ring is provided with a third flange at the bottom of the rim.

6. An iris expansion device as in claim 1 or 5, wherein the inner side of the rim of the expansion ring is provided with a fourth flange at the top of the rim.

7. The iris dilation device of claim 1, further comprising a boost aid, the boost aid comprising:

the liquid containing cavity is sleeved in the containing cavity and is tightly attached to the side wall of the containing cavity, and the expanding ring can be pushed relative to the containing cavity in a moving way; the rear end of the liquid containing cavity is provided with a piston, and the piston is tightly attached to the inner wall of the liquid containing cavity and is used for containing liquid;

the diaphragm is arranged at the opening of the liquid containing cavity or at the front end of the liquid containing cavity;

and the puncture needle is arranged in the piston and used for puncturing the diaphragm.

8. The iris dilation device according to claim 7, wherein the diaphragm has a connection portion and a needle punching portion, the connection portion being connected with the receiving cavity, the needle punching portion being penetrable by the needle.

9. The iris expansion apparatus of claim 7, wherein the fluid-containing chamber stores a fluid or the fluid is injected into the fluid-containing chamber by piercing the piston.

10. The iris expansion apparatus of claim 7, further comprising a housing which is sleeved outside the accommodating chamber and has a front opening closely fitted to an outer wall of the accommodating chamber to fix the accommodating chamber; the rear end of shell inner wall is equipped with first spacing ring, hold the liquid chamber and be equipped with the second spacing ring in the rear end that keeps away from the holding chamber, first spacing ring and second spacing ring mutually support in order to restrict the removal of holding the liquid chamber in the shell.