CN1043257A - Cornea fixer - Google Patents
Cornea fixer Download PDFInfo
- Publication number
- CN1043257A CN1043257A CN89108482A CN89108482A CN1043257A CN 1043257 A CN1043257 A CN 1043257A CN 89108482 A CN89108482 A CN 89108482A CN 89108482 A CN89108482 A CN 89108482A CN 1043257 A CN1043257 A CN 1043257A
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- China
- Prior art keywords
- retainer ring
- cornea
- main body
- corneal
- screw
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Abstract
The present invention is a kind of ophthalmic operating set that is used for fixing corneal film.Existing corneal fixture need be used suture fixed angles diaphragm, complex operation, and fixing not firm, it is time-consuming to require great effort, the easy damaged cornea tissue.The present invention is made of the retainer ring that has the pointed tooth projection, fixed screw, main body and set screw.This apparatus structure is simple, and is in light weight, and immobilizing corneal is easy, firm, and angle of departure diaphragm is very convenient.The present invention can be used for corneal lamellar transplant operation or other experimentation.
Description
The invention belongs to a kind of ophthalmic operating set.When implementing ophthalmology lamellar cornea transplant operation, need from the corneal film that exsomatizes, will separate cutting corneal lamellar and plant sheet and it is transplanted on the receptor eyeball.Because isolated cornea sheet volume is little thinner again, separates cutting the flaggy inconvenient operation thereon.Therefore, line commonly used clinically is sewn on the surface of gauze ball with corneal film or presss from both sides or with the fixing isolated cornea of homemade ocular prosthesis seat holder with the Furness cornea, separate the operation that cuts lamellar cornea (Wang Shoujing etc. " keratoplasty " P63, April in 1980 the 1st edition Xi'an).
The existing fixed device is made of ocular prosthesis seat main body, ocular prosthesis, interior cover, overcoat.During operation the ocular prosthesis seat is fixed on the operating-table, earlier the corneal film epidermis is upwards placed on the ocular prosthesis, locate to put on suture, put in being separately fixed at 3,6,9,12 of edge of cornea, then overcoat is put tighten the screws, the fixing separation of tightly carrying out lamellar cornea of corneal film can be cut.
Prior art will be passed several sutures when the fixed angles diaphragm, fix corneal film by anchor suture then, and holder need be fixed on the operating-table and operates.Therefore, complex operation, very inconvenient, and also normal fixing not firm or difficult fixing, waste time and energy and the easy damaged cornea tissue.For make the corneal film fixation and also easy to operate simple and direct, quick, prevent to damage this device of the ad hoc meter of cornea tissue " cornea fixer ".
The present invention is made of main body, cornea holder, retainer ring, fixed screw and set screw.The cornea holder is made the garden cylindricality by politef or other materials, long 20～30mn, and diameter 15～20mn, its center is that central aperture communicates with the upper and lower end face, internal diameter 15～3mn, its upper and lower end face is a garden shape projection, the radius of curvature of projection is 8～14mn.The main body of holder is the garden cylindricality, high 25～35mn, and external diameter 30～38mn, its top external diameter is less, the top external diameter 18～25mn, position, its underpart external diameter 25～35mn has external screw thread.The main body inner chamber is the cornea bracket, internal diameter 15～20mn suitable for reading, and end opening internal diameter 10～15mn has female thread.Retainer ring is a round ring, go up young, end opening is big, there is the pointed tooth of 4～8 symmetrical distributions inboard suitable for reading, pointed tooth internal diameter 12～16mn, pointed tooth inwardly or outstanding downwards, the lower end of ring is outstanding to periphery.Retainer ring end opening internal diameter size topmost is advisable the outside to be enclosed within main body.Be provided with banking pin or other modes of braking between retainer ring and the main body, make the two can only direct-axis to moving, move and can not do rotation mutually, do rotation with turning of fixed screw and move and damage cornea to prevent retainer ring.Fixed screw is a hollow garden shape, and size suitable for reading can be enclosed within the retainer ring periphery and be pressed in the retainer ring lower end on the projection of periphery.The fixed screw end opening is bigger, and female thread is arranged, and can be screwed on the main body upper external thread, retainer ring is moved down with main body closely contact.Set screw is a Cylinder, and external diameter less about 10～15mn in top makes external screw thread, can be from the end opening precession main body inner chamber cornea bracket of main body.Turn the height that set screw scalable cornea restitope is put, adjust the fixed firm degree of corneal film.Bigger 25～the 35mn of set screw lower outer diameter, both can be hand held easily in operation, can be placed on the platform reposefully again and operate.
The present invention has been owing to designed the retainer ring of garden shape, and there are several pointed tooths the inboard suitable for reading of ring, can directly corneal film is fixed in the cornea holder, saved the step that hangs suture, thereby reached rapid and simple, the effect of fixation, make things convenient for operation significantly, shortened the operating time.
Simultaneously, be provided with banking pin between main body and retainer ring, the rotation of concentric is moved between restriction retainer ring and the main body, but can direct-axis to being inserted in easily or transfering to, thereby the rotation that can not drive retainer ring when tightening fixed screw is moved, and has prevented the damage corneal film.
The setting of set screw has made things convenient for and has regulated the height that the cornea restitope is put, and has guaranteed fixedly degree of tightness appropriateness of corneal film.
Owing to disposed the retainer ring cornea holder different that the pointed tooth internal diameter varies in size with radius of curvature, satisfied the needs of different big or small corneal films, guaranteed to separate that the corneal film that cuts is smooth, damage is light.Thereby improved the quality of separating the flaggy corneal graft.
Fig. 1: the decomposing schematic representation of each parts of cornea fixer.
Fig. 2: the face amount cutaway view of cornea fixer.
Embodiment:
Referring to accompanying drawing 1,2, cornea holder (5) is made diameter 17mn with polytetrafluoroethylmaterial material, 6 of the Cylinders of long 25mn, and central aperture (8) diameter is 2mn, and two ends are garden shape projection, and radius of curvature is respectively 10～12mn.
Retainer body (1) goes up the internal diameter 17mn of cornea bracket (9), cornea bracket (9) end opening internal diameter 11mn.Main body (1) upper end external diameter 21mn, main body major diameter of external thread 30mn, main body (1) external diameter 35mn.Retainer ring (3) is a round ring, and there are (7) 8 of pointed tooths inboard suitable for reading, and pointed end is made 4 retainer rings respectively by pointed tooth different inner diameters 12,13,14,16mn.Retainer ring end opening internal diameter 21mn, end opening is to periphery protuberance external diameter 28mn.Fixed screw (2) is a hollow garden shape, external diameter 35mn, internal diameter 26mn suitable for reading, bottom internal diameter 28.5mn.Set screw (4) is the garden cylindricality, and top external diameter 12mn has external screw thread, lower outer diameter 28mn.Between main body and retainer ring, be provided with banking pin (6).
During use, in the end opening screw of elder generation with the top precession main body (1) of set screw (4).Select for use the cornea holder (5) of suitable radius of curvature to put into the cornea bracket (9) of main body then as required.Again the corneal film epidermis is upwards placed in the cornea holder (5).After this, select for use the retainer ring (3) of suitable pointed tooth internal diameter to be enclosed within the main body upper end, at last fixed screw is enclosed within on the retainer ring, and be screwed on the main body external screw thread, this moment, retainer ring moved down, pointed tooth is securely fixed in corneal film in the cornea holder, and the separation that can carry out corneal film easily this moment such as cuts at operation.
Claims (6)
1, a kind of ophthalmic operating set that is used for fixing corneal film is made of main body, cornea holder, retainer ring, fixed screw, set screw.It is characterized in that: there are 4～8 pointed tooths the inboard suitable for reading of retainer ring, and the internal diameter of pointed tooth is 12～16mm.
2, the retainer ring pointed tooth described in claim 1, it is inwardly most advanced and sophisticated or downward or down inside.
3, main body described in claim 1 and retainer ring are provided with banking pin or other modes of braking therebetween, make the two direct-axis can only be arranged to mobile, and can not rotate mobile mutually.
4, its inner chamber of the main body described in claim 1 has end opening, and female thread is arranged.
5, the cornea holder described in claim 1 is that cylindricality two ends, garden are garden shape projection, and the radius of curvature of projection is 10～12mn, and the central aperture at center communicates with the upper and lower end face.
6, the cornea holder is made by polytetrafluoroethylmaterial material described in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89108482A CN1018522B (en) | 1989-11-13 | 1989-11-13 | Cornea fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89108482A CN1018522B (en) | 1989-11-13 | 1989-11-13 | Cornea fixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1043257A true CN1043257A (en) | 1990-06-27 |
| CN1018522B CN1018522B (en) | 1992-10-07 |
Family
ID=4857593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89108482A Expired CN1018522B (en) | 1989-11-13 | 1989-11-13 | Cornea fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1018522B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008008391A3 (en) * | 2006-07-11 | 2009-02-12 | Refocus Group Inc | Apparatus for securing ocular tissue |
| US8337550B2 (en) | 2006-07-11 | 2012-12-25 | Refocus Ocular, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US8911496B2 (en) | 2006-07-11 | 2014-12-16 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| WO2020212199A1 (en) * | 2019-04-15 | 2020-10-22 | Carl Zeiss Meditec Ag | Devices and methods for laser surgery of an eye, especially for keratoplasty |
| WO2020212802A1 (en) * | 2019-04-15 | 2020-10-22 | Resbiomed Technologies Ltd. | Anterior lamellar keratoplasty |
| US11571333B2 (en) | 2020-05-18 | 2023-02-07 | Refocus Group, Inc. | Apparatus and method for securing ocular tissue and providing surgical tool positioning points |
-
1989
- 1989-11-13 CN CN89108482A patent/CN1018522B/en not_active Expired
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9687339B2 (en) | 2006-07-11 | 2017-06-27 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US9730785B2 (en) | 2006-07-11 | 2017-08-15 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US8409277B2 (en) | 2006-07-11 | 2013-04-02 | Refocus Ocular, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US8709029B2 (en) | 2006-07-11 | 2014-04-29 | Refocus Ocular, Inc. | Apparatus and method for securing ocular tissue |
| US8911496B2 (en) | 2006-07-11 | 2014-12-16 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US9452044B2 (en) | 2006-07-11 | 2016-09-27 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US9486310B2 (en) | 2006-07-11 | 2016-11-08 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| WO2008008391A3 (en) * | 2006-07-11 | 2009-02-12 | Refocus Group Inc | Apparatus for securing ocular tissue |
| US9504559B2 (en) | 2006-07-11 | 2016-11-29 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US11273028B2 (en) | 2006-07-11 | 2022-03-15 | Refocus Group Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US9498324B2 (en) | 2006-07-11 | 2016-11-22 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US9700406B2 (en) | 2006-07-11 | 2017-07-11 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US9717588B2 (en) | 2006-07-11 | 2017-08-01 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US8337550B2 (en) | 2006-07-11 | 2012-12-25 | Refocus Ocular, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US10485653B2 (en) | 2006-07-11 | 2019-11-26 | Refocus Group, Inc. | Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods |
| US10744031B2 (en) | 2006-07-11 | 2020-08-18 | Refocus Group, Inc. | Apparatus and method for securing ocular tissue |
| US9592152B2 (en) | 2006-07-11 | 2017-03-14 | Refocus Group, Inc. | Apparatus and method for securing ocular tissue |
| WO2020212199A1 (en) * | 2019-04-15 | 2020-10-22 | Carl Zeiss Meditec Ag | Devices and methods for laser surgery of an eye, especially for keratoplasty |
| WO2020212802A1 (en) * | 2019-04-15 | 2020-10-22 | Resbiomed Technologies Ltd. | Anterior lamellar keratoplasty |
| US11571333B2 (en) | 2020-05-18 | 2023-02-07 | Refocus Group, Inc. | Apparatus and method for securing ocular tissue and providing surgical tool positioning points |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1018522B (en) | 1992-10-07 |
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| GR02 | Examined patent application |