CN111870427B - Medical forceps for corneal stroma lens implantation - Google Patents
Medical forceps for corneal stroma lens implantation Download PDFInfo
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- CN111870427B CN111870427B CN202010780484.1A CN202010780484A CN111870427B CN 111870427 B CN111870427 B CN 111870427B CN 202010780484 A CN202010780484 A CN 202010780484A CN 111870427 B CN111870427 B CN 111870427B
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- 210000003683 corneal stroma Anatomy 0.000 title claims abstract description 20
- 238000002513 implantation Methods 0.000 title claims description 9
- 239000002184 metal Substances 0.000 claims abstract description 105
- 238000001356 surgical procedure Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 210000003811 finger Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000004087 cornea Anatomy 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000001491 myopia Diseases 0.000 description 2
- 230000004379 myopia Effects 0.000 description 2
- 201000009487 Amblyopia Diseases 0.000 description 1
- 206010020675 Hypermetropia Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 241000282376 Panthera tigris Species 0.000 description 1
- 208000004550 Postoperative Pain Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000981 epithelium Anatomy 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000004305 hyperopia Effects 0.000 description 1
- 201000006318 hyperopia Diseases 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000013532 laser treatment Methods 0.000 description 1
- 201000010041 presbyopia Diseases 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
- A61F9/0017—Introducing ophthalmic products into the ocular cavity or retaining products therein implantable in, or in contact with, the eye, e.g. ocular inserts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00861—Methods or devices for eye surgery using laser adapted for treatment at a particular location
- A61F2009/00872—Cornea
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Prostheses (AREA)
Abstract
The invention discloses medical forceps for implanting a corneal stroma lens, which comprise a handle, a control switch and a grabber; three metal rods are arranged in the handle, a control switch is connected with the metal rods on the two sides, the metal rods on the two sides can be folded and unfolded by pressing a button, the metal rods on the two sides extend forwards and are bent into two metal wires, the middle part of the metal rods on the two sides is divided into two semicircular metal rods with the diameter of 0.5mm at the control switch, and the metal rods extend forwards and are bent into two metal wires; the metal wires at the two sides form a grabbing part, and the metal wire at the middle part forms a supporting part; the curvature radius of the bent metal wire is 7.8mm, the metal wire and the metal wire are parallel, and a flexible contact is arranged at the front end of the metal wire. The invention can spread and pave the corneal stroma lens in the corneal pocket once; avoiding the possibility of adjusting in the corneal pocket for a plurality of times, damaging corneal tissues and even destroying the incision of the pocket, and better protecting the stromal lens and the corneal pocket.
Description
Technical Field
The invention relates to the technical field of clinical ophthalmology, in particular to a medical forceps for implanting a micro-incision corneal stroma lens, which is suitable for surgical treatment of myopia, amblyopia, presbyopia and the like.
Background
Excimer laser corneal refractive surgery mainly includes two types of corneal superficial layer refractive surgery (LASEK, Trans-PRK, etc.) and corneal stroma refractive surgery (LASIK, SBK, etc.), the former has the defects of postoperative pain, slow recovery of vision, long medication time, etc., and is difficult to be performed in clinic in a large quantity, and the latter needs to make corneal flap, and regardless of the traditional mechanical knife or femtosecond laser to make the corneal flap, complications such as corneal flap badness, corneal flap displacement, epithelium endogenesis, etc., exist, and people worry about the safety of the surgery. In 2011, Sekundo et al and Shah et al reported a new corneal refractive surgery in which a corneal stromal lens was cut at different depths using a femtosecond laser, an arc incision was made at the edge of the lens to about 2.5mm, and the front and rear surfaces of the stromal lens were separated from the corneal tissue and then removed from the incision with a pair of tweezers, i.e., a "small incision stromal lens extraction" (SMILE). Because SMILE cuts within the corneal stroma without the need for a flap, it overcomes the disadvantages of laser in situ keratomileusis (LASIK) surgery on the surface of the cornea. In 2015, zhongshan ophthalmology center and Beijing consummate ophthalmology creatively implant a xenogenic corneal stroma micro convex lens (taken out by full femtosecond laser treatment myopia) into the corneal center of a treatment eye (full femtosecond assisted pocket formation) to correct hyperopia. In performing the above procedure, the surgeon needs to remove or hold the corneal stromal lens intact through the micro-incision and implant the corneal pocket. Previously, the lens was pushed into the corneal pocket by means of a separator; the separator is formed by bending a metal; this approach increases the difficulty of lens implantation.
In recent years, there has been some domestic research on such surgical micro-forceps. Patent 201711257886.8 discloses a corneal lens takes out tweezers, including tweezers arm and auxiliary lighting device, under the effect of pivot through upper arm and lower arm, through the quick taking out of tweezers head to patient's corneal lens, realize the auxiliary lighting of operation through auxiliary lighting device. 201822118571.1 discloses a corneal stroma lens implanting forceps, which realizes the clamping of the lens by forming a clamping area between a fixed clip and a movable clip. 201620355430.X discloses a microscope forceps special for full femtosecond operation, which is provided with a clamping sleeve and a clamping rod arranged in the clamping sleeve to clamp a lens. 201821630761.5 discloses an auxiliary device for use of aspheric lens, which comprises an auxiliary rod arranged between the first forceps sheet and the second forceps sheet for assisting the first forceps sheet and the second forceps sheet to fold and clamp the aspheric lens, wherein the auxiliary rod is used for pressing the middle part of the aspheric lens, and then the first forceps sheet and the second forceps sheet are used for clamping two sides of the aspheric lens, so that the aspheric lens can be folded and clamped.
The above-mentioned forceps for taking out or implanting have their own advantages, but do not consider the accuracy of placing the lens into the corneal pocket in the existing lens implanting operation, which mainly depends on the skill level of the doctor, and due to the difference of the doctor's personal techniques, the corneal stroma lens cannot be unfolded and laid out in the corneal pocket at one time in many cases; resulting in the need for multiple adjustments in the corneal pocket to properly position the corneal stromal lens; the reciprocating invasive procedure may damage corneal tissue and even destroy the pocket incision. Therefore, aiming at the problem, the implantation forceps which can facilitate the corneal stroma lens to be unfolded and laid in the corneal pocket at one time is developed, and the implantation forceps have important significance for relieving the pain of a patient, improving the operation accuracy and reducing the operation time.
Disclosure of Invention
In order to solve the above-mentioned problems, the present invention provides a pair of medical forceps for implanting a microcut corneal stroma lens.
The complete technical scheme of the invention comprises the following steps:
medical forceps for implanting a corneal stroma lens comprise a handle, a control switch and a grabber;
the handle is a hollow screw-thread metal sleeve,
the control switch is positioned at the front part of the handle and comprises a button and a butt-joint buckle,
three metal rods are arranged in the handle and connected with the handle body, wherein the first metal rod and the second metal rod are respectively positioned at two sides, the third metal rod is positioned in the middle,
the control switch is connected with the first metal rod and the second metal rod, and the involutory buckle is opened and closed by pressing the button, so that the first metal rod and the second metal rod can involutory and open,
the structure of the grabber is as follows: the first metal rod extends forwards and is bent into a first metal wire, the second metal rod extends forwards and is bent into a second metal wire, the middle third metal rod is divided into two semicircular metal rods with the diameter of 0.5mm at the control switch, and the third metal rod extends forwards and is bent into a third metal wire and a fourth metal wire; the first metal wire and the second metal wire form a grabbing part, and the third metal wire and the fourth metal wire form a supporting part;
the curvature radius of the first to fourth metal wires is 7.8mm, the first to fourth metal wires are parallel to each other, and flexible contacts are mounted at the front ends of the metal wires.
Preferably, in operation, the first and second wires open and close to grip the corneal stroma lens.
Preferably, in operation, the third and fourth wires are positioned under the corneal stromal lens to support the corneal stromal lens.
Preferably, the maximum opening and closing range of the grabbing part is 4 mm.
Preferably, the handle is further provided with a sliding buckle, and the third metal rod can be controlled to move back and forth through the sliding buckle.
Preferably, the flexible contacts on the first and second wires are larger than the flexible contacts on the third and fourth wires.
Compared with the prior art, the invention has the advantages that: four metal wires are adopted to form a grabber, a grabbing part and a supporting part are formed, the corneal stroma lens is fixed, the two middle metal wires have the function of supporting the stroma lens, and an operator can flexibly grab the lens and place the lens in a corneal pocket by operating a sliding buckle and a control switch, so that the corneal stroma lens can be unfolded and laid flat in the corneal pocket at one time; avoiding the possibility of multiple adjustments in the corneal pocket, damaging corneal tissue and even destroying the pocket incision, and better protecting the stromal lens and the corneal pocket by the flexible contact tip.
Drawings
Fig. 1 is a schematic structural view of medical forceps for corneal stroma lens implantation disclosed by the invention.
Fig. 2 is a front view of the gripper of the present invention.
In the figure: 1-a handle; 2-a first metal rod; 3-a second metal rod; 4-a third metal rod; 5-a button; 6, buckling; 7-a first wire; 8-a second wire; 9-a third wire; 10-a fourth wire; 11-a flexible contact; 12-sliding buckle.
Detailed Description
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 illustrative and are not intended to limit the present application.
As shown in figure 1, the medical forceps for implanting the corneal stroma lens disclosed by the invention comprises a handle 1 and three built-in metal rods, wherein the metal rods are connected with a handle body, and the handle 1 is a threaded metal sleeve and is designed in a hollow mode. Wherein first metal pole 2 and second metal pole 3 are located both sides respectively, and third metal pole 4 is located the centre, is equipped with control switch on the handle, and control switch includes button 5 and to closing the knot 6, opens and closes through pressing the button messenger to closing the knot to make first metal pole 2 and second metal pole 3 can to closing and open, wherein control switch also can adopt the mechanism that can control to open and shut of prior art to realize. The third metal rod 4 in the middle is divided into two semicircular metal rods with the diameter of 0.5mm at the control switch, the two metal rods on the two sides and the metal rod in the middle extend downwards in parallel and are respectively bent into metal wires, the four metal wires form a lens grabber,
as can be seen from the front view of the grabber shown in fig. 2, the first metal wires 7 and the second metal wires 8 formed by the first metal rods and the second metal rods on the two sides are positioned above and can be opened and closed through the corresponding metal rods, so that the grabber is formed, and the maximum opening range of the grabber is 4 mm. The middle third wire 9 and the middle fourth wire 10 are located slightly below the grasping portion and can function as a support for the substrate lens. Wherein the curvature radian of the metal wire of the grabber is similar to the curvature of the cornea, and the curvature radius is 7.8 mm. The handle is also provided with a sliding buckle 12 which is connected with the third metal rod and can control the third metal rod to drive the third and fourth metal wires to move back and forth within a certain range through the sliding buckle.
When the handle is operated, the threaded metal sleeve of the handle part is positioned at the tiger mouth of an operator, the handle is pinched by a thumb and a middle finger, and the index finger can be placed on the sliding buckle. The corneal stromal lens may be placed in a holder similar to the corneal stromal lens disclosed in 201822119521.5, and grasping the corneal stromal lens is accomplished by first pushing the slide button to cause the middle two wires to push up slightly on the lens, then pressing the button to cause the wires on both sides to grip the lens from both sides, and continuing to push the slide button to cause the middle wire to pull on the lens, thereby causing the lens to be grasped in the unfolded state. The flexible contacts 11 on the wires on both sides are larger, so that the flexible contacts have larger contact area and are convenient to fix during grabbing. The flexible contact 11 of the intermediate wire is small, so that the corneal pocket is prevented from being injured by implantation. Wherein if certain cost is added, a better proposal is that the two metal wires in the middle and the two metal wires are made of different materials. The metal wires on two sides can be made of materials with high elastic modulus to facilitate the grabbing, and the metal wire in the middle can be made of materials with lower elastic modulus than the metal wires on two sides, namely, the metal wire is easier to deform to protect the corneal stroma lens. If the cost is reduced, the same material may be used for the four wires. During implantation, the sliding button is slid back to retract the middle two pieces of metal, and then the button is released to allow the corneal stromal lens to be placed into the corneal pocket. Such an operation allows the corneal stromal lens to unfold and flatten in the corneal pocket at one time; the adjustment in the corneal pocket for many times is avoided, the possibility of damaging corneal tissues and even destroying the incision of the pocket is avoided, the stromal lens and the corneal pocket are better protected, the operation is flexible, the opening and closing and sliding operation can be completed by adopting 3 fingers, and the design of human engineering is very met.
The above applications are only some embodiments of the present application. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the invention.
Claims (7)
1. Medical forceps for implanting a corneal stroma lens are characterized by comprising a handle, a control switch and a grabber;
the handle is a hollow screw-thread metal sleeve,
the control switch is positioned at the front part of the handle and comprises a button and a butt-joint buckle,
three metal rods are arranged in the handle and connected with the handle body, wherein a first metal rod and a second metal rod are respectively positioned at two sides, a third metal rod is positioned in the middle,
the control switch is connected with the first metal rod and the second metal rod, and the involutory buckle is opened and closed by pressing the button, so that the first metal rod and the second metal rod can involutory and open,
the structure of the grabber is as follows: the first metal rod extends forwards and is bent into a first metal wire, the second metal rod extends forwards and is bent into a second metal wire, the middle third metal rod is divided into two semicircular metal rods with the diameter of 0.5mm at the control switch, and the third metal rod extends forwards and is bent into a third metal wire and a fourth metal wire; the first metal wire and the second metal wire form a grabbing part, and the third metal wire and the fourth metal wire form a supporting part;
the curvature radius of the first to fourth metal wires is 7.8mm, the first to fourth metal wires are parallel to each other, and flexible contacts are mounted at the front ends of the metal wires.
2. The corneal stromal lens implanting medical forceps of claim 1, wherein in operation, the first and second wires open and close to grasp the corneal stromal lens.
3. The corneal stromal lens implanting medical forceps of claim 1, wherein in operation, the third and fourth metal wires are positioned below the corneal stromal lens to grasp the corneal stromal lens.
4. The corneal stromal lens implanting medical forceps of claim 1, wherein the maximum extent of opening and closing of the grasping portion is 4 mm.
5. The medical forceps for corneal stromal lens implantation according to claim 1, wherein the handle further comprises a sliding button, and the sliding button can control the third metal rod to move back and forth.
6. The intrastromal corneal lens implanting medical forceps of claim 1, wherein the flexible contacts on the first and second wires are larger than the flexible contacts on the third and fourth wires.
7. The corneal stromal lens implanting medical forceps of claim 1, wherein the third and fourth wires are slightly lower than the first and second wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010780484.1A CN111870427B (en) | 2020-08-06 | 2020-08-06 | Medical forceps for corneal stroma lens implantation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010780484.1A CN111870427B (en) | 2020-08-06 | 2020-08-06 | Medical forceps for corneal stroma lens implantation |
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| Publication Number | Publication Date |
|---|---|
| CN111870427A CN111870427A (en) | 2020-11-03 |
| CN111870427B true CN111870427B (en) | 2021-05-18 |
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| CN202010780484.1A Active CN111870427B (en) | 2020-08-06 | 2020-08-06 | Medical forceps for corneal stroma lens implantation |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US12533259B1 (en) * | 2025-06-05 | 2026-01-27 | Eye Hospital, Wenzhou Medical University | Methods for implanting corneal inlays based on high-precision visual axis positioning and intraocular pressure adjustment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6083188A (en) * | 1998-02-04 | 2000-07-04 | Becker; Bruce B. | Lacrimal silicone stent with very large diameter segment insertable transnasally |
| WO2005009953A2 (en) * | 2003-07-23 | 2005-02-03 | Jessing Jeffrey R | Crystalline substance with tailored angle between surfaces |
| CN205672129U (en) * | 2016-04-26 | 2016-11-09 | 郑州市第二人民医院 | Full femtosecond art special microlens tweezer |
| CN208145115U (en) * | 2017-12-06 | 2018-11-27 | 济南市明水眼科医院股份有限公司 | A kind of three shank type corneal suture tweezers |
| CN209154195U (en) * | 2018-10-09 | 2019-07-26 | 武汉市兴康医疗器械有限责任公司 | A kind of auxiliary device used for non-spherical lens |
| CN209203730U (en) * | 2018-12-17 | 2019-08-06 | 中国人民解放军陆军军医大学第一附属医院 | Corneal stroma lens are implanted into tweezer |
| CN210433600U (en) * | 2019-03-14 | 2020-05-01 | 华厦眼科医院集团股份有限公司 | Three-handle type cornea suture forceps |
-
2020
- 2020-08-06 CN CN202010780484.1A patent/CN111870427B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6083188A (en) * | 1998-02-04 | 2000-07-04 | Becker; Bruce B. | Lacrimal silicone stent with very large diameter segment insertable transnasally |
| WO2005009953A2 (en) * | 2003-07-23 | 2005-02-03 | Jessing Jeffrey R | Crystalline substance with tailored angle between surfaces |
| CN205672129U (en) * | 2016-04-26 | 2016-11-09 | 郑州市第二人民医院 | Full femtosecond art special microlens tweezer |
| CN208145115U (en) * | 2017-12-06 | 2018-11-27 | 济南市明水眼科医院股份有限公司 | A kind of three shank type corneal suture tweezers |
| CN209154195U (en) * | 2018-10-09 | 2019-07-26 | 武汉市兴康医疗器械有限责任公司 | A kind of auxiliary device used for non-spherical lens |
| CN209203730U (en) * | 2018-12-17 | 2019-08-06 | 中国人民解放军陆军军医大学第一附属医院 | Corneal stroma lens are implanted into tweezer |
| CN210433600U (en) * | 2019-03-14 | 2020-05-01 | 华厦眼科医院集团股份有限公司 | Three-handle type cornea suture forceps |
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| CN111870427A (en) | 2020-11-03 |
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