Iris expander implant and manufacturing method thereof
The iris dilator implanter addresses the challenges of large and cumbersome iris dilators by enabling minimally invasive implantation through a 2 mm incision, ensuring easy and trauma-free surgical placement and adjustment.
Patent Information
- Application Number
- CN202111639155.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-12-30
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2041-12-30
AI Technical Summary
Existing iris dilators are large in size, have poor folding performance, and require larger incisions for implantation, leading to complications such as contamination, slippage, and increased surgical demands.
An iris dilator implanter with a storage part, tunnel, plunger, and guide hook design, allowing for a minimally invasive implantation through a 2 mm incision, featuring a simple structure and precise placement of the iris dilator using a guide hook for easy insertion and removal.
Facilitates easy, one-step implantation and adjustment of the iris dilator with minimal trauma, reducing the need for multiple incisions and simplifying surgical operations, while maintaining the dilator's structure and elasticity.
Smart Images
Figure CN114404137B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical equipment, and in particular to an iris dilator implanter and a manufacturing method thereof. Background Art
[0002] The iris is an important part of the human eye. By changing the size of the iris, the pupil in the central part can adjust the light entering the eye. The pupil of a normal person under natural light is about 2-3mm. During intraocular surgery, whether it is cataract surgery or posterior segment surgery (such as vitrectomy), the surgeon needs to dilate the pupil before the operation in order to obtain a good surgical field. However, some patients may have damage to the pupillary sphincter due to other diseases or trauma, or due to iris adhesion, etc., and cannot be dilated by drugs, which will have a great impact on the surgical operation. Especially in the posterior segment operating room, it will greatly affect the surgeon's visibility and observation range.
[0003] In the past, ophthalmologists often used iris retractors to assist in related work. However, this method requires multiple corneal incisions, which has a certain impact on the patient's postoperative recovery. On the other hand, this method has cumbersome operation steps and complex fixation, which places relatively high demands on the surgeon.
[0004] With the development of technology, minimally invasive surgery and refined surgery are the development direction in ophthalmic surgery. In order to simplify the operation and reduce trauma, iris dilators (also known as spreaders) that enter through a single incision are gradually entering the clinic.
[0005] However, most of the commonly used iris dilators at present are large in size and have average folding performance. When implanted again, a larger incision is often required. During implantation, some are implanted by direct pushing, while others are implanted by retractors. On the one hand, this is not convenient during implantation, and it is easy to cause dilator contamination, slippage, and contamination, which places high demands on the surgeon. Summary of the invention
[0006] 1. Technical issues to be resolved
[0007] In view of the shortcomings of the prior art, the present invention provides an iris dilator implanter and a manufacturing method thereof, which solves the problem that most commonly used iris dilators are large in size, have average folding performance, and require a larger incision for implantation. During implantation, some are implanted by direct pushing, while others are implanted by hooks, which is not convenient during implantation and easily leads to dilator contamination, slippage, and contamination, etc., which places high demands on surgeons.
[0008] (II) Technical solution
[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: an iris dilator implanter, comprising a storage part and a tunnel, one end of the storage part is fixedly connected to the tunnel, the end of the tunnel away from the storage part is fixedly connected to the implant part, the end of the storage part away from the tunnel is slidably connected to a plunger, a guide hook is provided in the upper middle part of the plunger, and a tail limiter is fixedly clamped at the upper end of the plunger away from the implant part, a travel groove is provided in the upper middle part of the tunnel and the implant part, an iris dilator is provided inside the implant part, a fixed limit part is provided at the end of the implant part close to the plunger, a limit part bayonet is provided in the lower middle part of the implant part, and the end of the guide hook away from the implant part is fixedly connected to the tail limiter.
[0010] A method for manufacturing an iris dilator implanter, the method steps comprising:
[0011] S1. The storage portion, the tunnel and the implant portion are integrally molded by a mold by injection molding using a mold injection molding process, and the plunger and the fixed stopper are closed by injection molding of the mold;
[0012] S2. Then the guide hook and the tail stopper are integrally molded by the mold by using the mold injection molding process;
[0013] S3. Sterilize the injection molded parts;
[0014] S4. After disinfection, perform dust-free treatment again;
[0015] S5. The dust-free treated guide hook is clamped on the plunger through the tail stopper, and the front of the guide hook is clamped with the iris dilator's snap ring;
[0016] S6. Insert the plunger with the guide hook and the iris dilator into the storage portion, and then put the fixed limiter on the storage portion. After the plunger is stuck in the slot, the fixed limiter is fixedly connected to the storage portion by hot pressing;
[0017] S7. Place the assembled implanter into a sterile box and seal it with nitrogen.
[0018] Preferably, an injection support is provided at one end of the plunger away from the storage portion.
[0019] Preferably, the end of the implant portion away from the storage portion is a wedge-shaped opening with an inner diameter of 1.5 mm high and 1.5 mm wide. The tunnel is 20 mm long, with a wall thickness of 0.1 mm at the opening and a wall thickness of 1 mm at the tail of the tunnel.
[0020] Preferably, the storage area of the iris dilator inside the storage portion is a square with a side length of 7.5 mm and an internal height of 1.5 mm.
[0021] Preferably, the fixed limiting part is a pressable latch, and one end of the fixed limiting part below the tunnel is fixedly connected to the fixed limiting part, and a latch is provided at a position corresponding to the latch of the limiting part at one end of the fixed limiting part below the tunnel.
[0022] Preferably, a slot corresponding to the latch is formed below one end of the plunger close to the iris dilator.
[0023] Preferably, the iris dilator is a quadrilateral structure of a four-corner curl-like spiral ring formed by a polypropylene linear material with a diameter of 0.1 mm, and the end of the guide hook away from the tail limiter is clamped with a clamping ring of the iris dilator close to the tunnel.
[0024] Working principle: During the use of the present invention, pressing the fixed limit part can press the bolt, release the plunger limit fixation, push the plunger, and rely on the front guide hook to pull and the rear plunger to push the dilator into the tunnel. Place the front kiss of the implant part at the corneal or corneoscleral limbus incision. Continue to push the plunger, and the guide hook and plunger continue to pull and push the dilator into the anterior chamber of the eye. Open the tail limiter, push the guide hook forward through the tail limiter and withdraw the implanter backward at the same time. Only retain the guide hook that extends forward in the anterior chamber, and guide the distal curly-like spiral ring of the iris dilator to be placed at the distal iris fixing point. Then adjust the remaining 3 curly-like spiral ring structures again to complete the iris expansion. After use, use the guide hook to pull forward to remove the proximal curly-like spiral structure. Then pull it out to the outside to remove the iris dilator.
[0025] (III) Beneficial effects
[0026] The present invention provides an iris dilator implanter and a manufacturing method thereof. The invention has the following beneficial effects:
[0027] 1. The iris dilator provided in the present invention has a simple structure and makes full use of the simple structure and exquisite design of the matching iris dilator. It is easy to store before use and does not require temporary safety disinfection preparation when used. It can be used after unpacking, which improves the convenience of use.
[0028] 2. The storage portion provided in the present invention can maintain the structure and elasticity of the iris dilator for a long time, avoiding structural deformation and elasticity reduction caused by long-term compression before use, and enhancing the practicality of the device.
[0029] 3. When used, the present invention can be implanted through a minimum corneal or corneoscleral limbus incision of 2 mm. During the implantation process, implantation, installation, and adjustment can be performed at one time, avoiding the exchange of instruments, simplifying the operation, and reducing the difficulty of operation. It has the characteristics of reasonable structure and convenient operation, and is suitable for popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;
[0031] Figure 2 It is a schematic diagram of the back three-dimensional structure of the present invention;
[0032] Figure 3 It is a schematic diagram of the internal structure of the storage part of the present invention;
[0033] Figure 4 It is a schematic diagram of the front structure of the guide hook of the present invention;
[0034] Figure 5 It is a side view of the present invention.
[0035] Among them, 1. storage part; 2. tunnel; 3. implantation part; 4. side slot; 5. plunger; 6. travel slot; 7. fixed limit part; 8. guide hook; 9. tail limiter; 10. iris dilator; 11. limit part bayonet. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0037] Example:
[0038] like Figure 1-5As shown, an embodiment of the present invention provides an iris dilator implanter, comprising a storage portion 1 and a tunnel 2, one end of the storage portion 1 is fixedly connected to the tunnel 2, the end of the tunnel 2 away from the storage portion 1 is fixedly connected to the implantation portion 3, the end of the storage portion 1 away from the tunnel 2 is slidably connected to a plunger 5, a guide hook 8 is provided in the upper middle portion of the plunger 5, the end of the plunger 5 away from the implantation portion 3 is fixedly clamped with a tail stopper 9, an injection support is provided at the end of the plunger 5 away from the storage portion 1, a travel groove 6 is provided in the upper middle portion of the tunnel 2 and the implantation portion 3, an iris dilator 10 is provided inside the implantation portion 3, the iris dilator 10 is a quadrilateral structure of a four-corner curl-like spiral ring composed of a polypropylene linear material with a diameter of 0.1 mm, a spiral structure supports the iris site, and the end of the guide hook 8 away from the tail stopper 9 is clamped with a clamping ring of the iris dilator 10 close to the tunnel 2, and the end of the implantation portion 3 close to the plunger 5 A fixed limiting portion 7 is provided, and a limiting portion snap-on 7 is provided in the middle of the lower part of the implanting portion 3. The fixed limiting portion 7 is a pressable snap-on bolt. The end of the fixed limiting portion 7 below the tunnel 2 is fixedly connected to the fixed limiting portion 7, and a snap-on bolt is provided at a position corresponding to the limiting portion snap-on 11 at the end of the fixed limiting portion 7 below the tunnel 2. A snap-on bolt is provided below the end of the plunger 5 close to the iris dilator 10, and a snap-on groove corresponding to the snap-on bolt is provided. The end of the guide hook 8 away from the implanting portion 3 is fixedly connected to the tail limiter 9. The end of the implanting portion 3 away from the storage portion 1 is a wedge-shaped opening, and the inner diameter of the inner opening is 1.5mm high and 1.5mm wide. The tunnel 2 is 20mm long, the wall thickness at the opening is 0.1mm, and the wall thickness at the tail of the tunnel 2 is 1mm. The storage area of the iris dilator 10 inside the storage portion 1 is a square with a side length of 7.5mm and an internal height of 1.5mm. In order to maintain the elasticity of the dilator, it is placed therein intact without compression.
[0039] A method for manufacturing an iris dilator implanter, the method steps comprising:
[0040] S1. The storage portion, the tunnel and the implant portion are integrally molded by a mold by a mold injection molding process, and the plunger and the fixed stopper (7) are closed by injection molding of the mold;
[0041] S2. Then the guide hook and the tail stopper are integrally molded by the mold by using the mold injection molding process;
[0042] S3. Sterilize the injection molded parts;
[0043] S4. After disinfection, perform dust-free treatment again;
[0044] S5. The dust-free treated guide hook is clamped on the plunger through the tail stopper, and the front of the guide hook is clamped with the iris dilator's snap ring;
[0045] S6. Insert the plunger with the guide hook and the iris dilator into the storage portion, and then put the fixed limiter on the storage portion. After the plunger is stuck in the slot, the fixed limiter is fixedly connected to the storage portion by hot pressing;
[0046] S7. Place the assembled implanter into a sterile box and seal it with nitrogen.
[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An iris dilator implanter, comprising a storage portion (1) and a tunnel (2), characterized in that: One end of the storage part (1) is fixedly connected to a tunnel (2), and the end of the tunnel (2) away from the storage part (1) is fixedly connected to an implantation part (3). The end of the storage part (1) away from the tunnel (2) is slidably connected to a plunger (5), a guide hook (8) is provided at the upper middle part of the plunger (5), and a tail stopper (9) is fixedly connected to the upper middle part of the plunger (5) away from the implantation part (3). A travel stopper (9) is provided between the tunnel (2) and the implantation part (3). The implant portion (3) is provided with an iris expander (10) inside, the implant portion (3) is provided with a fixed limit portion (7) at one end close to the plunger (5), a limit portion snap-in (11) is provided at the lower middle part of the implant portion (3), the end of the guide hook (8) away from the implant portion (3) is fixedly connected to the tail limiter (9), and the end of the guide hook (8) away from the tail limiter (9) is snap-connected with a snap ring of the iris expander (10) close to the tunnel (2); The fixed limiting portion (7) is a pressable latch, and one end of the fixed limiting portion (7) below the fixed limiting portion (7) close to the tunnel (2) is fixedly connected to the fixed limiting portion (7), and one end of the fixed limiting portion (7) below the fixed limiting portion (7) away from the tunnel (2) is provided with a latch at a position corresponding to the latch opening (11) of the limiting portion.
2. An iris dilator implanter according to claim 1, characterized in that: An injection support is provided at one end of the plunger (5) away from the storage portion (1).
3. The iris dilator implanter according to claim 1, characterized in that: The end of the implant portion (3) away from the storage portion (1) is a wedge-shaped opening with an inner diameter of 1.5 mm high and 1.5 mm wide. The tunnel (2) is 20 mm long, with a wall thickness of 0.1 mm at the opening and a wall thickness of 1 mm at the tail of the tunnel (2).
4. The iris dilator implanter according to claim 1, characterized in that: The storage area of the iris dilator (10) inside the storage portion (1) is a square with a side length of 7.5 mm and an internal height of 1.5 mm.
5. The iris dilator implanter according to claim 1, characterized in that: A slot corresponding to the latch is provided below one end of the plunger (5) close to the iris dilator (10).
6. The iris dilator implanter according to claim 1, characterized in that: The iris expander (10) is a quadrilateral structure of a four-corner curl-like spiral ring made of a 0.1 mm diameter polypropylene linear material.
7. A method for manufacturing the iris dilator implanter according to claim 1, characterized in that: The method steps are: S1. The storage portion, the tunnel and the implant portion are integrally molded by a mold by a mold injection molding process, and the plunger and the fixed stopper (7) are closed by injection molding of the mold; S2. The guide hook and the tail stopper are integrally molded by the mold by using the mold injection molding process; S3. Sterilize the injection molded parts; S4. After disinfection, perform dust-free treatment again; S5. The dust-free treated guide hook is clamped on the plunger through the tail stopper, and the front of the guide hook is clamped with the clasp of the iris dilator; S6. Insert the plunger with the guide hook and the iris dilator into the storage portion, and then put the fixed limiter on the storage portion. After the plunger is stuck in the slot, the fixed limiter is fixedly connected to the storage portion by hot pressing; S7. Place the assembled implanter into a sterile box and fill it with nitrogen to seal it.