CN2688265Y - Depth-controlled trephine for cornea - Google Patents
Depth-controlled trephine for cornea Download PDFInfo
- Publication number
- CN2688265Y CN2688265Y CN 200420010504 CN200420010504U CN2688265Y CN 2688265 Y CN2688265 Y CN 2688265Y CN 200420010504 CN200420010504 CN 200420010504 CN 200420010504 U CN200420010504 U CN 200420010504U CN 2688265 Y CN2688265 Y CN 2688265Y
- Authority
- CN
- China
- Prior art keywords
- trephine
- cornea
- cutting
- trepan
- model
- 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.)
- Expired - Fee Related
Links
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model relates to a medical device for ophthalmic surgery, in particular to a depth controlled trephine for cornea which can wholly or hierarchically excise corneal surface layers, Bowman's layers, or essence layers as required. The utility model is characterized in that the depth controlled trephine for cornea comprises a trephine body 3 which is provided with screw threads 4 through which depth controlled protective nuts 6 and the trephine body 3 are connected. The trephine body 3 is connected with a trephine cutting core 1 and the depth controlled protective nuts 6 which can be tightened up to avoid deep cutting cornea; the trephine cutting core 1 can be directly arranged in the body cavity of the trephine body 3 and rotate freely; one end of the trephine cutting core 1 is provided with corneal physiological radian; a small cutter head 2 in the shape of sharp pointed tooth on the radian end face of the trephine cutting core 1 finishes cutting cornea. As a consequence, operation time is shortened, quality of corneal cutting in operation is raised, and the danger of cornea penetrating is avoided. The utility model has the advantages of simple structure, easy use, one man operation in surgery, and pain release for patients.
Description
(1) technical field: this utility model relates to the surgical medical apparatus of using in a kind of ophthalmologic operation and the zoopery, particularly a kind of can be as required all or the cornea control deep-cutting trepan of layering excision with superficial keratectomy, bowman's lamina or essential layer.
(2) background technology: clinical corneal transplantation technology of carrying out can be divided into two kinds at present, and a kind of is penetrating keratoplasty, and another kind is that lamellar cornea is transplanted.Penetrating keratoplasty can be used for present popular corneal trephine and directly cornea is penetrated, and changes a new corneal graft, promptly reaches the operation purpose after sewing up.Lamellar cornea is transplanted then needs to excise 1/3 or 1/2 of ectocornea, do not need the holostrome cornea is replaced, so when operation, can only slowly cut with scalpel, there is following shortcoming in this method: often cause became uneven when 1. cutting, can cause that bigger Qu Guang not just, has a strong impact on visual function after the operation healing; 2. with the scalpel cutting,, often cause cornea to penetrate easily, bring inconvenience to operation because of scalpel is sharp property apparatus; 3. operation is wasted time and energy, and has both increased doctor's physical demands and risk, has increased the misery of corrective surgery again.
(3) summary of the invention: the purpose of this utility model is a kind of control deep-cutting trepan that is used for cornea of developing at above problem, it comprises the trepan body, what be connected with the trepan body has trepan cutting core and controls dark Protective nut, on the trepan body, screw thread is arranged, control dark Protective nut and trepan body by being threaded, this product is to have installed a dark Protective nut of threaded control on the trepan drill bit additional, and it is the difference according to the cutting angle film thickness, drill through the degree of depth of cornea with control, can not damage cornea.Installed trepan cutting core in trephine opening additional, an end of trepan cutting core is that the radian according to cornea is designed to the cornea physiologic radian, and the small bit tool of sharp keen sharp tooth is arranged on its radian end face.This product structure is simple, and is easy to use, but implementing operation Shi doctor one man operation, also reduced patient's misery simultaneously.
(4) description of drawings:
Fig. 1 is a planform sketch map of the present utility model.
Fig. 2 is the shape and structure sketch map of this utility model trepan cutting core.
Fig. 3 is the shape and structure sketch map of this utility model trepan body.
Fig. 4 is the shape and structure sketch map of the dark Protective nut of this utility model control.
(5) specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing.
Shown in Fig. 1,2,3,4, referring to Fig. 2,3,4.The control deep-cutting trepan that is used for cornea, it comprises trepan body 3, screw thread 4 is arranged on trepan body 3, controlling dark Protective nut 6 is connected by screw thread 4 with trepan body 3, what be connected with trepan body 3 has trepan cutting core 1 and a dark Protective nut 6 of control, and trepan cutting core 1 can directly be packed in the body cavity of trepan body 3, rotates freely, one end of trepan cutting core 1 is the cornea physiologic radian, finishes the cutting of corneal by the small bit tool 2 of sharp keen sharp tooth on the radian end face of trepan cutting core 1.To control dark Protective nut 6 during operation and screw trepan body 3, and control the cutting depth that can prevent corneal after dark Protective nut 6 screws, an end of controlling dark Protective nut 6 directly contacts with cornea, be the degree of depth of the corneal that requires cutting.Control the actual needs that dark Protective nut 6 can be when implementing corneal graft, make the serial model No. of different length, in order to the needs of different operations.During use, assemble dark Protective nut 6 of control and trepan body 3 earlier, by the trepan cutter head on the trepan body 35 cornea is drilled into certain depth, reinstall trepan cutting core 1, the rotating ring drilling is cut core 1 to certain controlling depth, finishes the cutting of corneal by the small bit tool 2 of sharp keen sharp tooth on the radian end face of trepan cutting core 1, has promptly shortened operating time, increase the quality of operation cornea ablation again, overcome the danger that cornea penetrates.
Claims (1)
1, a kind of control deep-cutting trepan that is used for cornea, it comprises trepan body (3), it is characterized in that: screw thread (4) is arranged on the trepan body (3), have trepan cutting core (1) and the dark Protective nut of control (6) that are connected with trepan body (3) are configured for the control deep-cutting trepan of cornea, controlling dark Protective nut (6) is connected by screw thread (4) with trepan body (3), trepan cutting core (1) is contained in the body cavity of trepan body (3), one end of trepan cutting core (1) is the cornea physiologic radian, and the small bit tool (2) of sharp keen sharp tooth is arranged on its radian end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010504 CN2688265Y (en) | 2004-04-01 | 2004-04-01 | Depth-controlled trephine for cornea |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010504 CN2688265Y (en) | 2004-04-01 | 2004-04-01 | Depth-controlled trephine for cornea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2688265Y true CN2688265Y (en) | 2005-03-30 |
Family
ID=34668478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420010504 Expired - Fee Related CN2688265Y (en) | 2004-04-01 | 2004-04-01 | Depth-controlled trephine for cornea |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2688265Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357047A (en) * | 2011-09-15 | 2012-02-22 | 同济大学 | Miniature electric drill for removing foreign body of cornea |
| CN108186194A (en) * | 2018-01-03 | 2018-06-22 | 沈阳何氏眼科医院有限公司 | Ophthalmologic operation ultrasound knife |
| CN113730092A (en) * | 2021-08-30 | 2021-12-03 | 四川大学华西医院 | Cornea trephine |
-
2004
- 2004-04-01 CN CN 200420010504 patent/CN2688265Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357047A (en) * | 2011-09-15 | 2012-02-22 | 同济大学 | Miniature electric drill for removing foreign body of cornea |
| CN108186194A (en) * | 2018-01-03 | 2018-06-22 | 沈阳何氏眼科医院有限公司 | Ophthalmologic operation ultrasound knife |
| CN113730092A (en) * | 2021-08-30 | 2021-12-03 | 四川大学华西医院 | Cornea trephine |
| CN113730092B (en) * | 2021-08-30 | 2023-01-13 | 四川大学华西医院 | Cornea trephine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11554042B2 (en) | Method and apparatus for subretinal administration of therapeutic agent | |
| KR101657941B1 (en) | Milling device for making a borehole into a bone | |
| US5487725A (en) | Pneumatic vitrectomy for retinal attachment | |
| CN104010679B (en) | Without bruise intubate | |
| KR20130094818A (en) | Dissection handpiece and method for reducing the appearance of cellulite | |
| CN2688265Y (en) | Depth-controlled trephine for cornea | |
| US20240148403A1 (en) | Electric spiral knife for eliminating neck humps | |
| KR101018340B1 (en) | Medical Automatic Twist Punch System | |
| JPH0512939B2 (en) | ||
| CN208405078U (en) | Cutter is used in the full femtosecond operation of ophthalmology | |
| CN216124526U (en) | Angle-adjustable scalpel | |
| CN219557782U (en) | Retinal artery and vein tunica vaginalis incision knife | |
| CN205054344U (en) | Wicresoft's automatic stop cranium bores | |
| CN2579388Y (en) | Corneal epithelium valve forming device | |
| CN204520883U (en) | A kind of surgical scissors | |
| CN220089763U (en) | Auxiliary device for periosteum incision of infraorbital margin | |
| CN219480260U (en) | Hair follicle extraction element | |
| CN220370075U (en) | Minimally invasive planting ring cutter | |
| CN211187454U (en) | Urological department operation is cut with antiskid tissue that falls | |
| CN112472234B (en) | Hair follicle transplantation perforating device for hair planting and use method thereof | |
| US10335313B2 (en) | Method for removing colored spots to whiten the eye | |
| CN218106198U (en) | Iris incision knife | |
| US20220323255A1 (en) | Devices and methods for removing soft tissue and creating a channel in the soft tissue | |
| CN2313546Y (en) | Medical cranial drill with depth control | |
| Ohji et al. | Membrane delaminating wedge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |