Iris expansion ring

Abstract

The utility model provides an iris dilation ring, which relates to the technical field of ophthalmologic operation related equipment, and comprises a dilation ring body and a connecting band assembly, the dilation ring body is of an unclosed circular ring structure, and the dilation ring body is used for penetrating through an incision of an eyeball and being attached to an iris so as to assist in dilation of the iris; the connecting belt assembly is detachably connected with the dilation ring body, and the connecting belt assembly is arranged on the outer side of the incision so as to prevent the dilation ring body from falling off from the iris. The technical problem that in the prior art, when an eye operation is carried out, eye tissue is prone to being damaged is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of ophthalmic surgical equipment, and in particular to an iris dilation ring. Background Technology

[0002] Many eye diseases require surgical treatment, such as phacoemulsification for cataracts and vitreoretinal surgery. Regardless of the surgical method, due to the limited operating space, it is necessary to fully dilate the pupils before surgery to ensure adequate surgical observation and field of vision during the operation.

[0003] Some patients, due to systemic and ocular diseases such as diabetes, uveitis, eye trauma, or multiple surgeries, often cannot fully dilate their pupils with conventional mydriatic drugs. This will increase the risk and difficulty of surgery, increase intraoperative and postoperative complications, and ultimately affect the postoperative outcome and reduce the patient's visual quality.

[0004] Common solutions include cutting the iris at the pupillary margin and placing iris retractors through four incisions to enlarge the pupil. However, these methods can lead to iris damage, resulting in iris depigmentation and bleeding, postoperative pupil enlargement and deformation causing glare, uneven pressure on the pupil leading to damage to the iris tissue structure, and are also time-consuming and labor-intensive.

[0005] Current technologies often achieve rapid iris expansion by designing a notched ring and a ring groove that contacts the iris. This method uses the expansion ring to evenly spread the iris, reducing iris damage and requiring only a single corneal incision. However, this approach uses a locking mechanism with a positioning hole to prevent the expansion ring from dislodging, which may introduce new problems. First, it may be difficult to easily release the locked expansion ring inside the eye through a single incision. Second, the implanted expansion ring may dislocate behind the iris or into the vitreous cavity, causing harm. Utility Model Content

[0006] The purpose of this invention is to provide an iris dilation ring to alleviate the technical problem of easy damage to eye tissues during eye surgery in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] In a first aspect, this utility model provides an iris dilation ring, including a dilation ring body and a connecting band assembly. The dilation ring body is an unclosed annular structure, and the dilation ring body is used to pass through an incision in the eyeball and fit against the iris to assist in dilating the iris.

[0009] The connecting strap assembly is detachably connected to the expansion ring body, and the connecting strap assembly is used to be positioned on the outside of the incision to prevent the expansion ring body from falling off the iris.

[0010] Furthermore, the expansion ring body has a head end and a tail end, and a notch is provided between the head end and the tail end;

[0011] The connecting strap assembly is detachably connected to the head end or the tail end.

[0012] Furthermore, the first end portion is provided with a first adjustment hole;

[0013] The tail end is provided with a second adjustment hole;

[0014] Both the first and second adjustment holes are used to adjust the position of the expansion ring body by means of an external adjustment component.

[0015] Furthermore, an annular groove is formed on the outer wall of the expansion ring body along the circumferential direction, and the annular groove is used to fit with the iris.

[0016] Furthermore, one end of the expansion ring body is provided with a receiving cavity, and the expansion ring body is provided with a connector in the receiving cavity, the connector being detachably connected to the connecting band assembly;

[0017] The end of the connecting band assembly away from the connector extends through the accommodating cavity into the expansion ring body.

[0018] Furthermore, the connecting strap assembly includes a connecting strap body and a perforated member. One end of the connecting strap body is connected to the perforated member, and the other end is wrapped around the circumference of the connecting member and passes through the hole of the perforated member for detachable connection with the connecting member.

[0019] The end of the connecting strip body that passes through the hole extends out of the expansion ring body along the receiving cavity.

[0020] Furthermore, a through hole is provided at the end of the connecting strip body away from the perforated member;

[0021] The iris dilation ring also includes a positioning element, which is detachably connected to the connecting band body through the through hole.

[0022] Furthermore, the positioning member includes a folding member and connecting portions located at both ends of the folding member. The connecting portion at one end is used to pass through the through hole and connect with the connecting portion at the other end, so that the positioning member folds at the folding member.

[0023] Furthermore, the connecting portion is provided with an adhesive, and the connecting portions located at both ends of the folding member are connected by the corresponding adhesive.

[0024] Furthermore, the inner diameter of the expansion ring body is φ6.5-7.5mm.

[0025] This utility model can achieve the following beneficial effects:

[0026] In a first aspect, the present invention provides an iris dilation ring, comprising a dilation ring body and a connecting strap assembly. The dilation ring body is an unclosed annular structure and is used to pass through an incision in the eyeball and fit against the iris to assist in dilating the iris. The connecting strap assembly is detachably connected to the dilation ring body and is used to be positioned on the outside of the incision to prevent the dilation ring body from falling off the iris.

[0027] In this invention, the dilator ring body is configured as an open-ended circular structure with a notch. During use, an incision is first made in the patient's cornea, and then one end of the dilator ring body is inserted through this incision and fixed to the iris. Because the dilator ring body itself can be made of polymethyl methacrylate (PMMA), its elasticity allows it to assist iris dilation through tension, thereby achieving the effect of pupil enlargement. A connecting strap assembly is provided at one end of the dilator ring body near the incision. The connecting strap assembly is detachably connected to the dilator ring body, and its free end is located outside the eyeball, allowing medical personnel to fix the connecting strap assembly to prevent the dilator ring body from detaching from the iris.

[0028] Compared with the prior art, the iris dilation ring provided by this utility model sets the dilation ring body to an unclosed state with a notch, and places it on the iris through its own elasticity, so as to achieve the function of assisting iris dilation through the elasticity of the dilation ring body. In order to prevent the dilation ring body from falling off the iris, a connecting strap assembly is used to connect to one end of the dilation ring body, and medical staff fix the dilation ring body by fixing the connecting strap assembly.

[0029] In summary, this invention at least alleviates the technical problem of easy damage to eye tissues during eye surgery, which exists in the prior art. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 A schematic diagram of the overall structure of the ring portion of the iris dilation ring provided in an embodiment of this utility model;

[0032] Figure 2 A schematic diagram of the cross-sectional structure of the iris dilation ring provided in an embodiment of this utility model;

[0033] Figure 3 A schematic diagram of the connecting strip of the iris dilation ring provided in an embodiment of this utility model;

[0034] Figure 4 A partial structural diagram of the ring body portion of the iris dilation ring provided in an embodiment of this utility model;

[0035] Figure 5 A schematic diagram of the end cross-section of the ring body portion of the iris dilation ring provided in an embodiment of the present utility model;

[0036] Figure 6 A schematic diagram of the positioning element of the iris dilation ring provided in an embodiment of this utility model.

[0037] Icons: 1-Expansion ring body; 11-First end; 111-First adjustment hole; 12-Tail end; 121-Second adjustment hole; 13-Accommodation cavity; 131-Connector; 14-Annular groove; 2-Connecting belt assembly; 21-Connecting belt body; 211-Through hole; 22-Perforated part; 221-Hole; 3-Positioning part; 31-Connecting part; 311-Adhesive part; 32-Folding part. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0045] Example 1

[0046] This embodiment provides an iris dilation ring, as shown in the reference. Figure 1 and Figure 3 The iris dilation ring includes a dilation ring body 1 and a connecting band assembly 2. The dilation ring body 1 is an open circular ring structure and is used to pass through the incision in the eyeball and fit the iris to assist in dilating the iris. The connecting band assembly 2 is detachably connected to the dilation ring body 1 and is used to be placed on the outside of the incision to prevent the dilation ring body 1 from falling off the iris.

[0047] This invention at least alleviates the technical problem in the prior art that eye tissue damage is easily caused during eye surgery.

[0048] In this embodiment of the invention, the dilation ring body 1 is configured as an open-ended annular structure with a notch. In use, an incision is first made in the cornea of ​​the patient's eye, and then one end of the dilation ring body 1 is inserted through this incision and fixed to the iris. Since the dilation ring body 1 itself can be made of polymethyl methacrylate (PMMA) material, its elasticity allows it to assist the iris in dilation through tension, thereby achieving the effect of enlarging the pupil. A connecting strap assembly 2 is provided at one end of the dilation ring body 1 near the incision. The connecting strap assembly 2 is detachably connected to the dilation ring body 1, and its free end is located outside the eyeball, making it convenient for medical personnel to fix the connecting strap assembly 2 to prevent the dilation ring body 1 from falling off the iris.

[0049] Compared with the prior art, the iris dilation ring provided in this embodiment of the utility model is set to an unclosed state with a notch, and placed at the iris by its own elasticity, so as to achieve the function of assisting iris dilation by the elasticity of the dilation ring body 1. In order to prevent the dilation ring body 1 from falling off the iris, a connecting strap assembly 2 is used to connect to one end of the dilation ring body 1, and medical staff fix the dilation ring body 1 by fixing the connecting strap assembly 2.

[0050] In an optional implementation of this embodiment, refer to Figure 1 The expansion ring body 1 has a front end 11 and a rear end 12, with a notch between the front end 11 and the rear end 12; the connecting belt assembly 2 is detachably connected to the front end 11 or the rear end 12.

[0051] Specifically: The two ends of the expansion ring body 1 are respectively provided with a first end 11 and a last end 12, and a notch is provided between the first end 11 and the last end 12; in use, the first end 11 or the last end 12 is inserted into the notch so that the expansion ring body 1 can be gradually inserted into the iris from the notch; and preferably the first end 11 is inserted first, and then connected to the last end 12 through the connecting strap assembly 2 to fix the expansion ring body 1.

[0052] Furthermore, referring to Figure 1 The first end 11 is provided with a first adjustment hole 111; the tail end 12 is provided with a second adjustment hole 121; the first adjustment hole 111 and the second adjustment hole 121 are both used to adjust the position of the expansion ring body 1 by means of an external adjustment component.

[0053] Specifically: the first end 11 is provided with a first adjustment hole 111, and the corresponding tail end 12 is provided with a second adjustment hole 121; in use, medical staff use a hand tool to insert the dilation ring body 1 into the iris, and this tool can be tweezers. By inserting the tweezers into the corresponding adjustment hole, the position of the dilation ring body 1 can be adjusted.

[0054] In an optional implementation of this embodiment, refer to Figure 2 and Figure 5 An annular groove 14 is provided on the outer wall along the circumferential direction of the expansion ring body 1. The annular groove 14 is used to fit the iris.

[0055] Specifically, an annular groove 14 is formed on the outer wall of the expansion ring body 1 along the circumferential direction, and the inner side of the iris is fitted with the annular groove 14 to make the expansion ring body 1 and the iris fit more stably.

[0056] In an optional implementation of this embodiment, refer to Figure 4 and Figure 5 One end of the expansion ring body 1 is provided with a receiving cavity 13, and the expansion ring body 1 is provided with a connector 131 in the receiving cavity 13. The connector 131 is detachably connected to the connecting band assembly 2. The end of the connecting band assembly 2 away from the connector 131 passes through the receiving cavity 13 and exits the expansion ring body 1.

[0057] Specifically: One end of the expansion ring body 1 is provided with a receiving cavity 13, and preferably, the receiving cavity 13 is provided near the tail end 12. The receiving cavity 13 is located inside the expansion ring body 1 and extends out from the tail end 12. A connector 131 is provided inside the receiving cavity 13. The connector 131 is used to connect with the connecting belt assembly 2. After the connecting belt assembly 2 is connected with the connector 131, it extends out from the outlet end of the receiving cavity 13.

[0058] Furthermore, referring to Figure 3 The connecting strap assembly 2 includes a connecting strap body 21 and a perforated member 22. One end of the connecting strap body 21 is connected to the perforated member 22, and the other end is wrapped around the circumference of the connecting member 131 and passes through the hole 221 of the perforated member 22 for detachable connection with the connecting member 131. One end of the connecting strap body 21 passing through the hole 221 extends out of the expansion ring body 1 along the receiving cavity 13.

[0059] Specifically: one end of the connecting strip body 21 is connected to the perforated part 22, and the connecting strip body 21 is preferably a strip structure, while the perforated part 22 has a hole 221; and the connecting part 131 is preferably a fixing rod. In use, the connecting strip body 21 is wrapped around the outer wall of the connecting part 131 and passes through the hole 221, thereby realizing the connecting strip assembly 2 wrapped around the connecting part 131, while the free end of the connecting strip body 21 can pass out from the receiving cavity 13, and the perforated part 22 remains in the receiving cavity 13.

[0060] Furthermore, Figure 3 The connecting band body 21 has a through hole 211 at one end away from the perforated part 22; the iris dilation ring also includes a positioning part 3, which is detachably connected to the connecting band body 21 through the through hole 211.

[0061] Specifically: The end of the connecting strap body 21 away from the perforated part 22 is provided with a through hole 211, and the through hole 211 is preferably a rectangular hole. The positioning part 3 is connected to the free end of the connecting strap body 21 through this through hole 211, and the positioning part 3 is preferably at an angle of 90 degrees with the connecting strap body 21 to avoid the risk of the connecting strap assembly 2 falling off together with the expansion ring body 1.

[0062] Correspondingly, by tying a knot at the free end of the connecting strap body 21, this end cannot enter the cut, thereby preventing the expansion ring body 1 and the connecting strap assembly 2 from falling off.

[0063] Furthermore, referring to Figure 6 The positioning member 3 includes a folding member 32 and connecting portions 31 located at both ends of the folding member 32. The connecting portion 31 at one end is used to pass through the through hole 211 and connect to the connecting portion 31 at the other end, so that the positioning member 3 folds at the folding member 32.

[0064] Specifically: The two ends of the folding member 32 are symmetrically provided with connecting parts 31. In use, the positioning member 3 is flattened, and then the connecting part 31 at one end is passed through the through hole 211 until the folding member 32 is placed at the through hole 211. Then the connecting parts 31 at both ends are connected, and the folding member 32 is folded at the same time as the connecting parts 31 are connected, so as to connect the positioning member 3 with the connecting belt assembly 2.

[0065] Furthermore, referring to Figure 6 The connecting part 31 is provided with an adhesive 311, and the connecting parts 31 located at both ends of the folding part 32 are connected by the corresponding adhesive 311.

[0066] Specifically: the connecting part 31 is provided with an adhesive 311, and the adhesives 311 on both sides are symmetrically distributed. By bonding the adhesives 311 on both sides, the positioning part 3 can be folded at the folding part 32.

[0067] In an optional embodiment of this example, the inner diameter of the expansion ring body 1 is φ6.5-7.5mm.

[0068] Specifically, the inner diameter of the expansion ring body 1 is φ6.5-7.5mm, and preferably, the inner diameter of the expansion ring body 1 is φ7mm.

[0069] It should be emphasized that the dilatation ring body 1 is made of polymethyl methacrylate (PMMA), which gives it good optical properties, biocompatibility and mechanical strength. The dilatation ring body 1 made of this material can help maintain the shape and tension of the capsule and ensure the stability of the position of the intraocular lens. The dilatation ring body 1 can also be made of silicone, silicone, hydrophobic acrylate, polypropylene and polycarbonate, etc. Among these, silicone is non-toxic, non-irritating, and biocompatible, making it safe for intraocular use. It also possesses good elasticity and flexibility, adapting to different eye structures and surgical needs. It is easy to process and manufacture, and can be made into various shapes and sizes. Silicone, with its good biocompatibility, stability, and elasticity, is a common medical material widely used in medical device manufacturing. The expansion ring body 1, made of hydrophobic acrylate, can fit tightly against the equatorial portion of the lens capsule, effectively reducing the occurrence of posterior capsule opacification. Polypropylene has good flexibility and biocompatibility, providing additional support and stability to prevent intraocular lens displacement. Polycarbonate has good transparency, mechanical strength, and biocompatibility, and can be used to manufacture tension rings or related auxiliary devices.

[0070] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. An iris dilation ring, characterized in that, It includes an expansion ring body (1) and a connecting band assembly (2). The expansion ring body (1) is an unclosed circular ring structure, and the expansion ring body (1) is used to pass through the incision of the eyeball and fit with the iris to assist in the expansion of the iris. The connecting strap assembly (2) is detachably connected to the expansion ring body (1), and the connecting strap assembly (2) is used to be positioned on the outside of the incision to prevent the expansion ring body (1) from falling off the iris.

2. The iris dilation ring according to claim 1, characterized in that, The expansion ring body (1) has a head end (11) and a tail end (12), and a notch is provided between the head end (11) and the tail end (12); The connecting strap assembly (2) is detachably connected to the first end (11) or the last end (12).

3. The iris dilation ring according to claim 2, characterized in that, The first end portion (11) is provided with a first adjustment hole (111); The tail end (12) is provided with a second adjustment hole (121); Both the first adjustment hole (111) and the second adjustment hole (121) are used to adjust the position of the expansion ring body (1) by means of an external adjustment component.

4. The iris dilation ring according to claim 1, characterized in that, An annular groove (14) is provided on the outer wall along the circumferential direction of the expansion ring body (1), and the annular groove (14) is used to fit the iris.

5. The iris dilation ring according to claim 1, characterized in that, One end of the expansion ring body (1) is provided with a receiving cavity (13), and the expansion ring body (1) is provided with a connector (131) in the receiving cavity (13), and the connector (131) is detachably connected to the connecting belt assembly (2). The end of the connecting band assembly (2) away from the connector (131) extends through the receiving cavity (13) out of the expansion ring body (1).

6. The iris dilation ring according to claim 5, characterized in that, The connecting strap assembly (2) includes a connecting strap body (21) and a perforated part (22). One end of the connecting strap body (21) is connected to the perforated part (22), and the other end is wrapped around the circumference of the connecting part (131) and passes through the hole (221) of the perforated part (22) for detachable connection with the connecting part (131). The connecting strip body (21) passes through one end of the hole (221) and extends out of the expansion ring body (1) along the receiving cavity (13).

7. The iris dilation ring according to claim 6, characterized in that, The connecting strip body (21) has a through hole (211) at one end away from the perforated part (22); The iris dilation ring also includes a positioning element (3), which is detachably connected to the connecting band body (21) through the through hole (211).

8. The iris dilation ring according to claim 7, characterized in that, The positioning member (3) includes a folding member (32) and connecting portions (31) located at both ends of the folding member (32). The connecting portion (31) at one end is used to pass through the through hole (211) and connect to the connecting portion (31) at the other end, so that the positioning member (3) folds at the folding member (32).

9. The iris dilation ring according to claim 8, characterized in that, The connecting part (31) is provided with an adhesive (311), and the connecting parts (31) located at both ends of the folding member (32) are connected by the corresponding adhesive (311).

10. The iris dilation ring according to any one of claims 1-9, characterized in that, The inner diameter of the expansion ring body (1) is φ6.5-7.5mm.

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