CN215651310U - Iris expansion device for internal eye operation - Google Patents
Iris expansion device for internal eye operation Download PDFInfo
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- CN215651310U CN215651310U CN202121866504.3U CN202121866504U CN215651310U CN 215651310 U CN215651310 U CN 215651310U CN 202121866504 U CN202121866504 U CN 202121866504U CN 215651310 U CN215651310 U CN 215651310U
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- iris
- ring body
- injector
- pupil
- dilation device
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Abstract
The application discloses an iris expansion device for intraocular surgery compares with prior art, includes: an iris expander for expanding a pupil, the iris expander comprising: a first ring body; the second ring body is arranged opposite to the first ring body, and the diameter of the second ring body is larger than that of the first ring body; a cylinder connecting the first ring body and the second ring body; an injector for pushing an iris dilator into an eye, the injector comprising: an injector cannula for placement of an iris dilator; the injection needle is arranged in the injector sleeve and used for adjusting the position of the iris dilator; locate a plurality of opening structure on the barrel, the barrel has the first state of accomodating in the injection ware sleeve pipe and struts the second state of pupil. The application provides an iris expanding unit for intraocular surgery can reach and expand the pupil swiftly, wicresoft, fully exposes the operation field of vision, can shorten operation time, reduces the operation degree of difficulty for patient's postoperative resumes.
Description
Technical Field
The present application relates to the field of intraocular surgical devices, and more particularly, to an iris dilation device for use in intraocular surgery.
Background
Cataract is the first approximately blind eye disease in the world at present, cataract surgery is the only effective treatment of cataract, is the surgery with the largest volume in ophthalmology at present, vitreoretinal surgery is the only means for solving many common blinding eye diseases such as retinal detachment, vitreous hemorrhage, diabetic retinopathy, macular hole and the like, the surgical amount is increasing day by day, in the two types of surgery, a prerequisite condition is that the pupil is fully expanded to expose the surgical visual field, the surgical operation is convenient, meanwhile, the mistaken damage of iris tissues in the surgery is reduced, along with the aging of population, the problems that the pupil cannot be expanded before the surgery or the pupil is reduced in the surgery, the surgical difficulty is greatly increased, and the blind area operation in the surgery is increased, leading to an increased risk of tissue injury or other complications and a poor prognosis.
Most of the current pupil expanding devices have obvious disadvantages, such as increasing surgical trauma (iris retractor, asia) due to the need of making a plurality of additional incisions to meet the needs of implanting devices, complicated or difficult retraction operation due to multi-surface three-dimensional design of instruments, increasing surgical astigmatism (Malyugin ring, NTxpander) due to the inability of implanting through a small incision, and limited application range (except great) due to the unadjustable size.
Therefore, how to provide an iris dilation device for an internal eye surgery, which can achieve rapid and minimally invasive dilation of a pupil, is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the application provides an iris expansion device for an internal eye operation, which can realize rapid and minimally invasive pupil expansion.
The technical scheme provided by the application is as follows:
the present application provides an iris dilation device for use in intraocular surgery, comprising: an iris expander for expanding a pupil, the iris expander comprising: a first ring body; the second ring body is arranged opposite to the first ring body, and the diameter of the second ring body is larger than that of the first ring body; a cylinder connecting the first ring body and the second ring body; a injector for pushing the iris dilator into an eye, the injector comprising: an injector cannula for placement of the iris dilator; the injection needle is arranged in the injector sleeve and used for adjusting the position of the iris dilator; the multi-opening structure is arranged on the cylinder body, and the cylinder body is provided with a first state of being accommodated in the sleeve of the injection device and a second state of opening the pupil.
Further, in a preferred embodiment of the present invention, the second state specifically includes: the iris card is in between the first ring body and the second ring body, the barrel is used for annularly strutting the pupil.
Further, in a preferred aspect of the present invention, the clamping of the iris between the first ring body and the second ring body is specifically: the second ring body is clamped below the surface of the iris, and the first ring body is arranged on the surface of the iris.
Further, in a preferred aspect of the present invention, the first state is a contracted state in which the first ring body and the second ring body are telescoped.
Further, in a preferred embodiment of the present invention, the iris dilator is made of a material such as silica gel, titanium alloy, or an elastic polymer material.
Further, in a preferred mode of the present invention, the opening structure is located in the middle of the cylinder.
In a further preferred aspect of the present invention, the height of the cylinder is 3 to 8 mm.
In a further preferred mode of the present invention, the diameter of the second ring body is 6 to 12 mm.
In a further preferred aspect of the present invention, a diameter of the cylindrical body is the same as a diameter of the first ring body, and the diameters of the first ring body and the cylindrical body are 5 mm to 10 mm.
Further, in a preferred mode of the present invention, the bolus needle is a hook-shaped bolus needle.
Compared with the prior art, the technical scheme provided by the utility model is that the iris expansion device for the internal eye surgery comprises: an iris expander for expanding a pupil, the iris expander comprising: a first ring body; the second ring body is arranged opposite to the first ring body, and the diameter of the second ring body is larger than that of the first ring body; a cylinder connecting the first ring body and the second ring body; a injector for pushing the iris dilator into an eye, the injector comprising: an injector cannula for placement of the iris dilator; the injection needle is arranged in the injector sleeve and used for adjusting the position of the iris dilator; a plurality of opening structures arranged on the cylinder body, the cylinder body is provided with a first state of being accommodated in the sleeve of the injection device and a second state of opening the pupil, therefore, the push injection needle can adjust the position of the iris expander, the push injection device provided with the iris expander is inserted into the eye, part of the iris expander is pushed out, the pushed first ring body and the pushed second ring body are naturally unfolded, the unfolded first ring body and the unfolded second ring body are aligned with the iris, so that the cylinder body reaches a second state of opening the pupil, can realize the expansion of the pupil in the operation, ensure the smooth, safe and efficient operation of the inner eye operations such as lens excision, artificial lens implantation, vitreous body excision and the like, can realize the expansion of the pupil in the operation without increasing or enlarging the incision of the prior operation, the pupil can be dilated quickly and minimally invasively, the operation difficulty is reduced, and the prognosis of the patient is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view showing the overall structure of an iris extension device for an intraocular surgery according to an embodiment of the present invention;
fig. 2 is a front view schematically illustrating an iris expander of an iris expanding device for an intraocular surgery according to an embodiment of the present invention;
fig. 3 is a top view of an iris expander of an iris expanding device for an intraocular surgery according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "first," "second," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only for illustrative purposes and are not intended to limit the scope of the present disclosure, so that those skilled in the art can understand and read the present disclosure, and the present disclosure is not limited to the conditions and conditions that can be implemented in the present disclosure.
As shown in fig. 1 to 3, the present application provides an iris dilation apparatus for an intraocular surgery, comprising: an iris expander 1 for expanding the pupil, said iris expander 1 comprising: a first ring body 2; the second ring body 3 is arranged opposite to the first ring body 2, and the diameter of the second ring body 3 is larger than that of the first ring body 2; a cylinder 4 connecting the first ring body 2 and the second ring body 3; an injector for pushing the iris dilator 1 into an eye, the injector comprising: an injector cannula 5 for placing the iris dilator 1; the injection needle 6 is arranged in the injector sleeve 5 and is used for adjusting the position of the iris expander 1; the opening structures 7 are arranged on the cylinder body 4, and the cylinder body 4 has a first state of being accommodated in the injector sleeve 5 and a second state of opening the pupil.
Compared with the prior art, the iris expansion device for the internal eye surgery provided by the utility model comprises the following components: an iris expander 1 for expanding the pupil, said iris expander 1 comprising: a first ring body 2; the second ring body 3 is arranged opposite to the first ring body 2, and the diameter of the second ring body 3 is larger than that of the first ring body 2; a cylinder 4 connecting the first ring body 2 and the second ring body 3; an injector for pushing the iris dilator 1 into an eye, the injector comprising: an injector cannula 5 for placing the iris dilator 1; the injection needle 6 is arranged in the injector sleeve 5 and is used for adjusting the position of the iris expander 1; the cylinder body 4 is provided with a first state and a second state for opening the pupil, the first state and the second state are accommodated in the injector sleeve 5, so that the injection needle 6 can adjust the position of the iris expander 1, the injector with the iris expander 1 is inserted into the eye, part of the iris expander 1 is pushed out, the pushed first ring body 2 and the pushed second ring body 3 are naturally unfolded, the unfolded first ring body 2 and the unfolded second ring body 3 are aligned with the iris, the cylinder body 4 reaches the second state for opening the pupil, the pupil can be expanded in the operation, the smooth, safe and efficient operation of the internal eye operations such as lens excision, artificial lens insertion, vitrectomy and the like can be ensured, and the pupil can be quickly and minimally invasively expanded without increasing or expanding the existing operation incision, reduce the difficulty of the operation and improve the prognosis of the patient.
It should be noted that, in the embodiment of the present invention, the cylinder 4 is made of an elastic polymer film.
Specifically, in the embodiment of the present invention, the second state specifically is: the iris is clamped between the first ring body 2 and the second ring body 3, and the cylinder body 4 is used for annularly opening the pupil.
Specifically, in the embodiment of the present invention, the clamping of the iris between the first ring body 2 and the second ring body 3 specifically includes: the second ring body 3 is clamped below the surface of the iris, and the first ring body 1 is arranged on the surface of the iris.
Specifically, in the present embodiment, the first state is a contracted state in which the first ring body 2 and the second ring body 3 are telescoped.
It should be added that, in the embodiment of the present invention, the first ring body 2, the second ring body 3, and the cylinder 4 connecting the first ring body 2 and the second ring body 3 form an integral body, that is, the iris expander 1 is integrally formed.
Specifically, in the embodiment of the present invention, the iris dilator 1 is made of silica gel, titanium alloy, or elastic polymer material.
Specifically, in the present embodiment, the opening structure 7 is located in the middle of the cylinder 4.
In addition, in the embodiment of the present invention, the size of the opening structure 7 is 1 mm × 2 mm.
It should be added that, in the embodiment of the present invention, the opening structures 7 are vertically arranged in the middle of the cylinder 4 at equal intervals.
It should be added that, in the embodiment of the present invention, the number of the opening structures 7 is 8 to 16.
Specifically, in the embodiment of the present invention, the height of the cylinder 4 is 3 to 8 mm.
Stated more specifically, the height of the cylinder 4 is 3-6 mm.
In particular, in an embodiment of the utility model, the diameter of the second ring 3 is between 6 and 12 mm.
Stated more specifically, the diameter of the second ring body 3 is 7-10 mm.
Specifically, in the embodiment of the present invention, the diameter of the cylinder 4 is the same as the diameter of the first ring body 2, and the diameters of the first ring body 2 and the cylinder 4 are 5 mm to 10 mm.
More specifically, the diameters of the first ring body 2 and the cylinder body 4 are 6-9 mm.
In particular, in an embodiment of the present invention, the bolus needle 6 is a hook-shaped bolus needle.
Stated more specifically, the injection needle 6 is also used to hook the opening structure 7 on the barrel 4 to release the second ring 3 from the anterior chamber after surgery, and then the injection needle 6 is used to hook the first ring 2 and the second ring 3 simultaneously to pull the iris dilator 1 into the injector sleeve 5 and out of the eye from the original incision.
It should be added that the effectiveness and safety of the iris dilation device for internal eye surgery provided by the application can be verified through in vitro pig eyeball tests, in vivo animal experiments, in vivo patient experiments and the like.
More specifically, the in vitro pig eyeball test specifically comprises the following steps: the separation pig eyeball is fixed, the pupil is not dilated before the operation, the iris expansion device for the inner eye operation provided by the application is used for annularly strutting the pupil, then the conventional cataract operation step is carried out, and the effectiveness and the safety of the iris expansion device for the inner eye operation provided by the application in the operation are observed.
More specifically, the in vivo animal experiment specifically comprises: after pigment rabbits or pigs are anesthetized, the iris expansion device for the internal eye surgery provided by the application is used for annularly expanding pupils, then the conventional cataract surgery step is carried out, and the effectiveness and the safety of the iris expansion device for the internal eye surgery provided by the application in the operation are observed.
More specifically, the in vivo experiment of the patient is based on more than 50 animal eyes experiments, applies for the ethical examination of clinical trials, and after the cataract patient fully agrees with the eyes, the iris expansion device for the internal eye operation provided by the application annularly struts the pupil, and observes the difficulty of the operation, the closing condition of the incision during and after the operation, the local tissue reaction and the intraocular pressure condition.
The utility model provides an iris expansion device for an internal eye operation, which comprises the following specific operation steps or working principles:
conventionally establishing a main corneal incision, driving a viscoelastic agent to fill and separate the front and rear surfaces of an iris, protecting the cornea and a crystalline lens, nesting the first ring body 2 and the second ring body 3, pre-arranging the first ring body 2 and the second ring body 3 in the injector sleeve 5, inserting the injector with the iris expander 1 into an eye, pushing out part of the iris expander 1 to naturally expand the pushed out first ring body 2 and the second ring body 3, aligning the expanded first ring body 2 and the second ring body 3 with the iris, clamping the second ring body 3 below the surface of the iris, placing the first ring body 2 on the surface of the iris to naturally open the pupil of the cylinder body 4, continuously and stably pushing out the iris expander 1, adjusting the position of the iris expander 1 by using the injection needle 6 if necessary, conventionally completing the remaining injection operation steps, and hooking the opening structure 7 on the cylinder body 4 by using the barb of the injection needle 6 after the operation is finished, the second ring body 3 is dislocated in the anterior chamber, the first ring body 2 and the second ring body 3 are hooked by the injection needle 6 at the same time, the iris expander 1 is dragged into the injector sleeve 5 and is taken out of the eye from the original incision, and residual viscoelastic agents are sucked and washed, so that the expansion of the pupil in the operation can be realized, the operation visual field is fully exposed, the smooth, safe and efficient operation of the eye operations such as lens excision, artificial lens insertion, vitrectomy and the like can be ensured, the pupil can be quickly and minimally invasively expanded under the condition of not increasing or expanding the existing operation incision, the possibility of mistakenly sucking the iris is reduced, the operation time is shortened, the operation difficulty is reduced, the postoperative reaction and complications are reduced, the postoperative recovery is accelerated, and the prognosis of patients with cataract and vitrectomy is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An iris dilation device for use in intra-ocular surgery, comprising:
an iris expander for expanding a pupil, the iris expander comprising: a first ring body; the second ring body is arranged opposite to the first ring body, and the diameter of the second ring body is larger than that of the first ring body; a cylinder connecting the first ring body and the second ring body;
a injector for pushing the iris dilator into an eye, the injector comprising: an injector cannula for placement of the iris dilator; the injection needle is arranged in the injector sleeve and used for adjusting the position of the iris dilator;
the multi-opening structure is arranged on the cylinder body, and the cylinder body is provided with a first state of being accommodated in the sleeve of the injection device and a second state of opening the pupil.
2. An iris dilation device for use in intraocular surgery according to claim 1, wherein the second state is in particular: the iris card is in between the first ring body and the second ring body, the barrel is used for annularly strutting the pupil.
3. An iris dilation device for use in intraocular surgery as claimed in claim 2, wherein the iris capture between the first and second rings is in particular: the second ring body is clamped below the surface of the iris, and the first ring body is arranged on the surface of the iris.
4. An iris dilation device for use in intraocular surgery as claimed in claim 3, wherein the first state is a contracted state in which the first and second rings are nested.
5. An iris dilation device used for inner eye surgery as claimed in claim 4, wherein the iris dilator is made of silica gel, titanium alloy or elastic high polymer material.
6. An iris dilation device for use in intraocular surgery as claimed in claim 5, wherein the opening formation is located in the middle of the barrel.
7. An iris dilation device for use in intraocular surgery according to claim 6 wherein the height of the barrel is 3-8 mm.
8. An iris dilation device for use in intraocular procedures of claim 7 wherein the diameter of the second ring body is 6-12 mm.
9. An iris dilation device for use in intraocular surgery of claim 8 wherein the diameter of the barrel is the same as the diameter of the first ring, the diameter of the first ring and the barrel being 5-10 mm.
10. An iris dilation device for use in intraocular surgery as claimed in claim 9, wherein the bolus needle is a hook shaped bolus needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121866504.3U CN215651310U (en) | 2021-08-11 | 2021-08-11 | Iris expansion device for internal eye operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121866504.3U CN215651310U (en) | 2021-08-11 | 2021-08-11 | Iris expansion device for internal eye operation |
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| Publication Number | Publication Date |
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| CN215651310U true CN215651310U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121866504.3U Active CN215651310U (en) | 2021-08-11 | 2021-08-11 | Iris expansion device for internal eye operation |
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| CN (1) | CN215651310U (en) |
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- 2021-08-11 CN CN202121866504.3U patent/CN215651310U/en active Active
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