CN210872429U - Novel iris expander - Google Patents
Novel iris expander Download PDFInfo
- Publication number
- CN210872429U CN210872429U CN201921616479.6U CN201921616479U CN210872429U CN 210872429 U CN210872429 U CN 210872429U CN 201921616479 U CN201921616479 U CN 201921616479U CN 210872429 U CN210872429 U CN 210872429U
- Authority
- CN
- China
- Prior art keywords
- ring body
- ring
- iris
- hole
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 12
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 10
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 3
- 210000001747 pupil Anatomy 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 10
- 238000001356 surgical procedure Methods 0.000 abstract description 5
- 210000002159 anterior chamber Anatomy 0.000 abstract description 4
- 230000001179 pupillary effect Effects 0.000 abstract description 3
- 210000000695 crystalline len Anatomy 0.000 description 6
- 238000013459 approach Methods 0.000 description 3
- 230000010339 dilation Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000000916 dilatatory effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 206010022945 Iris adhesions Diseases 0.000 description 1
- 206010037515 Pupil fixed Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004087 cornea Anatomy 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 208000022749 pupil disease Diseases 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
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- Prostheses (AREA)
Abstract
The utility model discloses a novel iris expander relates to iris expander technical field. The utility model discloses a ring body, the cross section of ring body are opening C shape structure outwards, and the ring body medial surface is fixed with the beaded finish, and the beaded finish is three-quarter ring shape structure, and the position between beaded finish both ends and the ring body forms the interrupt, and the position that the ring body medial surface just is located the interrupt middle part is fixed with a protruding edge, and the through-hole has been seted up on the protruding edge. The utility model discloses a pupil is enlargied to the ring body that utilizes the PMMA material to make during ophthalmic surgery or process to make the pupil keep enlarging the state, can keep anterior chamber's stability, PMMA material histocompatibility is good simultaneously, has solved current iris expander and has caused the problem of iris pupillary margin damage easily.
Description
Technical Field
The utility model belongs to the technical field of the iris expander, especially, relate to a novel iris expander.
Background
The number of ophthalmic procedures has increased rapidly in recent years, and many ophthalmic procedures require dilation of the pupil to adequately view the interior of the eye, including the crystalline lens and the vitreoretinal, such as cataract and anterior-posterior approach vitreoretinal procedures, where the patient's pupil resists attempts to dilate the pupil, such as multiple procedures, history of trauma, and iris adhesions from a variety of causes, as well as certain diabetic patients, to prevent adequate dilation of the pupil.
Two more approaches are currently used to enhance dilation of the pupil, the first being primarily pharmacological, but the surgical approach is not preferred because in many patients with fixed pupils, the drugs do not effectively dilate the pupil and surgical complications can occur and affect the aesthetics.
Another surgical method is mechanical manipulation of the iris using sutures to secure the retracted iris through the iris wall, but this method requires delicate surgery, requires surgical instruments to be inserted behind the iris that are not fully visible, and can result in inadvertent puncturing of the iris to release the pigments into the eye.
Mechanical methods for dilating or dilating the pupil may also utilize a trans-limbal iris hook to pull back the iris, however the iris hook may damage the iris tissue and, in addition, the intra-ocular peg and iris hook may both occasionally move or slip from place, causing a variety of complications during ophthalmic surgery or other procedures.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel iris expander enlargies the pupil through the ring body that utilizes the PMMA material to make during ophthalmic surgery or process to make the pupil keep enlarging the state, can keep anterior chamber's stability, PMMA material histocompatibility is good simultaneously, has solved the problem that current iris expander caused iris pupillary edge damage easily.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a novel iris expander, which comprises a ring body;
the cross section of the ring body is of a C-shaped structure with an outward opening;
the reinforced ring is fixed on the inner side surface of the ring body, the reinforced ring is of a three-quarter circular ring structure, the two ends of the reinforced ring and the position between the ring body form an interruption, a convex edge is fixed on the position of the inner side surface of the ring body, which is positioned in the middle of the interruption, and a through hole is formed in the convex edge.
Further, the cross section of the inner side surface of the reinforcing ring is of a semicircular structure.
Further, the ring body, the reinforcing ring and the convex edge are all made of soft PMMA materials.
Furthermore, the through hole is in a ring hole structure, a square hole structure, a waist-shaped hole structure or a rectangular hole structure.
Furthermore, the convex edge is positioned at the central part of the height direction of the ring body, and the thickness of the reinforcing ring is 3-4 times of that of the convex edge.
The utility model discloses following beneficial effect has:
1. the utility model discloses a pupil is enlargied to the ring body that utilizes the PMMA material to make during ophthalmic surgery or process to make the pupil keep enlarging the state, can keep the stability in anterior chamber, PMMA material histocompatibility is good simultaneously, and is little to iris pupillary edge damage, easily makes.
2. The utility model discloses a folding ring body can use multiple intraocular lens to push away annotator and insert in the eyes and install and remove from eyes through main incision not damaged, and the cooperation of when installation and beaded finish uses can be predetermined expansion state in eyes, and the cooperation through intraocular lens positioning hook, protruding edge and through-hole is convenient for the installation of ring body, is demolishd and the regulation of position simultaneously, makes things convenient for medical personnel's operation.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a novel iris expander of the present invention;
fig. 2 is a schematic structural view of a top view of the present invention;
FIG. 3 is a cross-sectional view of the structure at A-A in FIG. 2;
in the drawings, the components represented by the respective reference numerals are listed below:
1-ring body, 2-reinforcing ring, 3-interrupt, 4-convex edge and 5-through hole.
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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention relates to a novel iris dilator, which comprises a ring body 1;
the cross section of the ring body 1 is of a C-shaped structure with an outward opening, and a groove is formed on the outer side of the ring body 1 and used for placing the inner edge of the iris;
the 1 medial surface of ring body is fixed with beaded finish 2, and beaded finish 2 is three-quarter ring structure, and the position between 2 both ends of beaded finish and the ring body 1 forms and breaks 3, and the 1 medial surface of ring body and the position that is located and breaks 3 middle parts are fixed with a protruding edge 4, have seted up through-hole 5 on the protruding edge 4, can be used for the regulation of 1 position of ring body through the cooperation of intraocular lens positioning hook, protruding edge 4 and through-hole 5.
Wherein the cross section of the inner side surface of the reinforcement ring 2 is a semicircular structure as shown in fig. 3.
The ring body 1, the reinforcing ring 2 and the convex edge 4 are all made of soft PMMA materials, the soft PMMA materials are good in histocompatibility, small in damage to the pupil edge of the iris, easy to manufacture and capable of controlling cost.
Wherein, the through hole 5 is a ring hole or a square hole or a waist-shaped hole or a rectangular hole structure.
As shown in figures 1 and 3, the convex edge 4 is positioned at the central part of the ring body 1 in the height direction, and the thickness of the reinforcing ring 2 is 3-4 times of that of the convex edge 4.
Wherein, can use various intraocular lens injection devices to push the ring body 1 into the anterior chamber, can install and remove under the assistance of the intraocular lens positioning hook.
Wherein, the utility model discloses a demolish the mode has two kinds, can use artificial crystal centre gripping tweezers directly to press from both sides it out, if the cornea incision is less (for example 2.5mm) in the art, also can use artificial crystal positioning hook to take off the back, take out it after cutting this expander with micro-scissors.
Wherein, the dilator of the utility model can be used as a disposable instrument, and is sterilized after being manufactured, sealed and aseptically stored.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A novel iris expander is characterized in that: comprises a ring body (1);
the cross section of the ring body (1) is of a C-shaped structure with an outward opening;
the utility model discloses a three-quarter ring structure, including ring body (1), reinforcing ring (2), position between reinforcing ring (2) both ends and ring body (1) form interruption (3), the position that ring body (1) medial surface just is located interruption (3) middle part is fixed with protruding edge (4), through-hole (5) have been seted up on protruding edge (4).
2. A novel iris expander as claimed in claim 1, characterized in that the cross section of the inner side of said reinforcing ring (2) is a semicircular structure.
3. A novel iris dilator according to claim 1, characterized in that said ring body (1), reinforcement ring (2) and convex edge (4) are made of soft PMMA material.
4. A novel iris expander as claimed in claim 1, characterized in that said through hole (5) is a circular hole or a square hole or a kidney-shaped hole or a rectangular hole structure.
5. A novel iris expander as claimed in claim 1, wherein said convex edge (4) is located at the central position of the height direction of the ring body (1), and the thickness of said reinforcement ring (2) is 3-4 times of the thickness of the convex edge (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921616479.6U CN210872429U (en) | 2019-09-26 | 2019-09-26 | Novel iris expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921616479.6U CN210872429U (en) | 2019-09-26 | 2019-09-26 | Novel iris expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210872429U true CN210872429U (en) | 2020-06-30 |
Family
ID=71332221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921616479.6U Expired - Fee Related CN210872429U (en) | 2019-09-26 | 2019-09-26 | Novel iris expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210872429U (en) |
-
2019
- 2019-09-26 CN CN201921616479.6U patent/CN210872429U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200630 |