CN110169864A - A kind of corneal trephine - Google Patents
A kind of corneal trephine Download PDFInfo
- Publication number
- CN110169864A CN110169864A CN201910454772.5A CN201910454772A CN110169864A CN 110169864 A CN110169864 A CN 110169864A CN 201910454772 A CN201910454772 A CN 201910454772A CN 110169864 A CN110169864 A CN 110169864A
- Authority
- CN
- China
- Prior art keywords
- head portion
- handle
- toroidal head
- toroidal
- interconnecting piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims 1
- 210000004087 cornea Anatomy 0.000 abstract description 11
- 230000003902 lesion Effects 0.000 abstract description 8
- 206010023332 keratitis Diseases 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 4
- 210000001232 limbus corneae Anatomy 0.000 abstract description 4
- 241000425571 Trepanes Species 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010010996 Corneal degeneration Diseases 0.000 description 1
- 206010012689 Diabetic retinopathy Diseases 0.000 description 1
- 208000010412 Glaucoma Diseases 0.000 description 1
- 208000003923 Hereditary Corneal Dystrophies Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 206010011005 corneal dystrophy Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- 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
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
- A61F9/00763—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments with rotating or reciprocating cutting elements, e.g. concentric cutting needles
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
A kind of corneal trephine, front end including handle and handle is equipped with toroidal head portion, interconnecting piece is set between handle and toroidal head portion, toroidal head portion is non-circular structure, the edge of toroidal head portion is the arc of rounding off, toroidal head portion is zhou duicheng tuxing, it is preferably oval, it solves for involving the biggish lesion of range, especially infected keratitis, existing trepan cannot agree with lesion form in drilling cornea completely, be easily destroyed the defect of the corneal limbus of over and under, and corneal trephine of the invention is suitable for the cornea shape of various non-positive round abnormity.
Description
Technical field
Present invention relates particularly to ophthalmic medical instrument technical fields, and in particular to a kind of corneal trephine.
Background technique
Blinding keratonosus becomes the big blinding eye in the world today three together with diabetic retinopathy, glaucoma
Disease.Blinding keratonosus is mostly caused by infected keratitis, corneal dystrophy, corneal degeneration or ocular surface burns.Currently, energy
The unique method for making blinding cornea patient recover lost eyesight is to carry out corneal graft.According to statistics, existing more than 150 ten thousand causes in China
Blind property cornea patient, but since the source of corneal donor is extremely limited, the patient of corneal graft can be received every year only
There are I ten thousand or so.Therefore, improve corneal donor survival rate, improve corneal graft, reduce art in postoperative complications for angle
The success of film transfer operation is vital.In corneal graft, the process with corneal trephine ring cutting patient's cornea is
The most key operation in entire operation.
But it is existing for involving the biggish lesion of range, especially infected keratitis since cornea is horizontal ellipse
Trepan cannot agree with lesion form in drilling cornea completely, be easily destroyed the corneal limbus of over and under.
Summary of the invention
In order to solve technological deficiency of the existing technology, the present invention provides a kind of corneal trephines.
The technical solution that the present invention uses is: the front end of a kind of corneal trephine, including handle, the handle is equipped with
Toroidal head portion, is additionally provided with interconnecting piece between the handle and toroidal head portion, the handle and toroidal head portion pass through interconnecting piece
There are angle, the toroidal head portion is non-circular knot for axis where connection and handle and the planar member where toroidal head portion
Structure, the edge of the toroidal head portion are the arc of rounding off, and the toroidal head portion is zhou duicheng tuxing.
The toroidal head portion includes the major diameter and minor axis across toroidal head portion center, and the major diameter and minor axis are vertical
Setting.
The length of the major diameter is greater than the length 1mm of minor axis.
The length of the major diameter is 2-13mm.
The interconnecting piece is fold-line-shaped, and interconnecting piece one end of the fold-line-shaped is connected with handle and collinearly sets with handle
It sets, the other end is connected with the edge of toroidal head portion and is coplanar with the planar member where toroidal head portion.
Angle between the interconnecting piece of fold-line-shaped is 10 ° -170 °.
The toroidal head portion is ellipse, and the length of the major diameter of the oval toroidal head portion is greater than the length of minor axis
Spend 1mm.
The handle and toroidal head portion and interconnecting piece are an integral structure, and the handle uses titanium alloy material system
At the interconnecting piece and toroidal head portion are made of medical stainless steel material.
The upper end face thickness of the cyclic structure of the toroidal head portion is greater than lower end face thickness.
Frosted layer is integrally provided on the handle, the front end of the handle is provided with several for facilitating holding
The annular lug of force.
The beneficial effects of the present invention are: the front end including handle and handle is equipped with the present invention provides a kind of corneal trephine
Interconnecting piece is arranged in toroidal head portion between handle and toroidal head portion, toroidal head portion is non-circular structure, and the edge of toroidal head portion is
The arc of rounding off, toroidal head portion are zhou duicheng tuxing, preferably oval, are solved for involving the biggish disease of range
Become, especially infected keratitis, existing trepan cannot agree with lesion form in drilling cornea completely, be easily destroyed top
And the defect corneal trephine of the invention of the corneal limbus of lower section is suitable for the cornea lesion shape of various non-positive round abnormity.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is toroidal head portion structural schematic diagram of the present invention.
Wherein 1- handle, 2- toroidal head portion, 3- interconnecting piece, 11- annular lug.
Specific embodiment
Now in conjunction with Fig. 1, Fig. 2, invention is further explained, a kind of corneal trephine, including handle 1, the handle
1 front end is equipped with toroidal head portion 2, which is characterized in that it is additionally provided with interconnecting piece 3 between the handle 1 and toroidal head portion 2, it is described
Handle 1 and toroidal head portion 2 connect by interconnecting piece 3 and the axis where handle 1 and the planar member where toroidal head portion 2 exist
Angle, the toroidal head portion 2 are non-circular structure, and the edge of the toroidal head portion 2 is the arc of rounding off, described
Toroidal head portion 2 be zhou duicheng tuxing.The toroidal head portion 2 includes the major diameter and minor axis across 2 center of toroidal head portion,
The major diameter and minor axis is vertically arranged.The length of the major diameter is greater than the length 1mm of minor axis.The length of the major diameter
For 2-13mm.The toroidal head portion 2 is preferably ellipse, and the length of the major diameter of the oval toroidal head portion 2 is greater than
The length 1mm of minor axis.The present invention is solved for involving the biggish lesion of range, especially infected keratitis, existing ring
Brill cannot agree with lesion form in drilling cornea completely, be easily destroyed the defect of the corneal limbus of over and under, of the invention
Corneal trephine is suitable for the cornea shape of various non-positive round abnormity.
The interconnecting piece 3 is fold-line-shaped, and 3 one end of interconnecting piece of the fold-line-shaped is connected with handle 1 and is total to handle 1
Line setting, the other end are connected with the edge of toroidal head portion 2 and are coplanar with the planar member where toroidal head portion 2.Fold-line-shaped
Angle between the interconnecting piece 3 is 10 ° -170 °.
The handle 1 and toroidal head portion 2 and interconnecting piece 3 are an integral structure, and the handle 1 uses titanium alloy material
Material is made, and the interconnecting piece 3 and toroidal head portion 2 are made of medical stainless steel material.
The upper end face thickness of the cyclic structure of the toroidal head portion 2 is greater than lower end face thickness.
Frosted layer is integrally provided on the handle 1, the front end of the handle 1 is provided with several for facilitating hand
Hold the annular lug 11 of force.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
Every technical staff's notice: of the invention although the present invention is described according to above-mentioned specific embodiment
Invention thought be not limited in the invention, any repacking with inventive concept will all be included in this patent protection of the patent right
In range.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. the front end of a kind of corneal trephine, including handle (1), the handle (1) is equipped with toroidal head portion (2), which is characterized in that
It is additionally provided with interconnecting piece (3) between the handle (1) and toroidal head portion (2), the handle (1) passes through with toroidal head portion (2)
There are angle, the ring-types for axis where interconnecting piece (3) connection and handle (1) and the planar member where toroidal head portion (2)
Head (2) is non-circular structure, and the edge of the toroidal head portion (2) is the arc of rounding off, the toroidal head portion
It (2) is zhou duicheng tuxing.
2. a kind of corneal trephine according to claim 1, which is characterized in that the toroidal head portion (2) include across
The major diameter and minor axis at toroidal head portion (2) center, the major diameter and minor axis are vertically arranged.
3. a kind of corneal trephine according to claim 2, which is characterized in that the length of the major diameter is greater than the length of minor axis
Spend 1mm.
4. a kind of corneal trephine according to claim 2, which is characterized in that the length of the major diameter is 2-13mm.
5. a kind of corneal trephine according to claim 2, which is characterized in that the interconnecting piece (3) is fold-line-shaped, described
Interconnecting piece (3) one end of fold-line-shaped be connected with handle (1) and be collinearly arranged with handle (1), the other end and toroidal head portion (2)
Edge is connected and is coplanar with the planar member where toroidal head portion (2).
6. a kind of corneal trephine according to claim 5, which is characterized in that between the interconnecting piece (3) of fold-line-shaped
Angle be 10 ° -170 °.
7. a kind of corneal trephine according to claim 1, which is characterized in that the toroidal head portion (2) is ellipse, ellipse
The length of the major diameter of the circular toroidal head portion (2) is greater than the length 1mm of minor axis.
8. a kind of corneal trephine according to claim 1, which is characterized in that the handle (1) and toroidal head portion (2) with
And interconnecting piece (3) is an integral structure, the handle (1) is made of titanium alloy material, the interconnecting piece (3) and ring-type
Head (2) is made of medical stainless steel material.
9. a kind of corneal trephine according to claim 1, which is characterized in that the cyclic annular knot of the toroidal head portion (2)
The upper end face thickness of structure is greater than lower end face thickness.
10. a kind of corneal trephine according to claim 1, which is characterized in that be integrally provided with mill on the handle (1)
Layer of sand, the front end of the handle (1) are provided with several for facilitating the annular lug (11) held and exerted a force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910454772.5A CN110169864A (en) | 2019-05-29 | 2019-05-29 | A kind of corneal trephine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910454772.5A CN110169864A (en) | 2019-05-29 | 2019-05-29 | A kind of corneal trephine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110169864A true CN110169864A (en) | 2019-08-27 |
Family
ID=67696517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910454772.5A Pending CN110169864A (en) | 2019-05-29 | 2019-05-29 | A kind of corneal trephine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110169864A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548608Y (en) * | 2002-06-13 | 2003-05-07 | 复旦大学附属眼耳鼻喉科医院 | Corneal epithelium valve forming device |
| CN200984280Y (en) * | 2006-11-29 | 2007-12-05 | 苏州大学附属第一医院 | Integrated corneal epithelium saw |
| CN204050002U (en) * | 2014-04-16 | 2014-12-31 | 青岛大学附属医院 | Corneal trephine and matched handle |
| CN106420161A (en) * | 2016-10-17 | 2017-02-22 | 南京市第医院 | Multifunctional alcohol storage tank for PRK |
| WO2018203341A1 (en) * | 2017-05-04 | 2018-11-08 | Soosan Jacob | Trephine to create shaped cuts for cornea of tissue |
| CN210542040U (en) * | 2019-05-29 | 2020-05-19 | 温州医科大学 | Cornea trephine |
-
2019
- 2019-05-29 CN CN201910454772.5A patent/CN110169864A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548608Y (en) * | 2002-06-13 | 2003-05-07 | 复旦大学附属眼耳鼻喉科医院 | Corneal epithelium valve forming device |
| CN200984280Y (en) * | 2006-11-29 | 2007-12-05 | 苏州大学附属第一医院 | Integrated corneal epithelium saw |
| CN204050002U (en) * | 2014-04-16 | 2014-12-31 | 青岛大学附属医院 | Corneal trephine and matched handle |
| CN106420161A (en) * | 2016-10-17 | 2017-02-22 | 南京市第医院 | Multifunctional alcohol storage tank for PRK |
| WO2018203341A1 (en) * | 2017-05-04 | 2018-11-08 | Soosan Jacob | Trephine to create shaped cuts for cornea of tissue |
| CN210542040U (en) * | 2019-05-29 | 2020-05-19 | 温州医科大学 | Cornea trephine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190827 |
|
| WD01 | Invention patent application deemed withdrawn after publication |