CN214909122U - Ophthalmic cornea scalpel capable of positioning and fixing angle - Google Patents
Ophthalmic cornea scalpel capable of positioning and fixing angle Download PDFInfo
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- CN214909122U CN214909122U CN202120729198.2U CN202120729198U CN214909122U CN 214909122 U CN214909122 U CN 214909122U CN 202120729198 U CN202120729198 U CN 202120729198U CN 214909122 U CN214909122 U CN 214909122U
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Abstract
An ophthalmic cornea scalpel capable of positioning and fixing angle belongs to an ophthalmic surgical instrument. It includes the type tool bit of bending of handle of a knife, handle of a knife tip, the type tool bit of bending includes the connecting portion of being connected with the handle of a knife, locates the cutting portion that connecting portion head end slope upwards extended the setting, the cutting portion with connecting portion are certain angle setting, the cutting portion have with the relative positive knife face of handle of a knife, connecting portion and cutting portion are equipped with the reflection of light area, the tip of cutting portion is equipped with the cutting depth degree of feed reflection of light mark line. The utility model has the advantages that: by using the novel corneal incision scalpel, a doctor can further position the cutting depth and angle of a surgical incision when performing cataract surgery to make a stepped corneal incision, so that the standardization and the safety of the corneal incision making in the cataract surgery are improved, and the surgical learning curve of the corneal incision making can be shortened.
Description
Technical Field
The utility model belongs to the field of ophthalmic surgical instruments, specifically speaking is to the disposable corneal scalpel function improvement's of clinical current ophthalmology that can fix a position, decide angle cornea scalpel.
Background
The step type corneal incision is an important step in cataract ultrasonic emulsification and extraction surgery, and the self-closing property of the corneal surgery incision is enhanced and the safety of the postoperative corneal incision is improved by forming a two-step or three-step incision structure in corneal tissue. At present, most of clinical step-type corneal incisions are made by using a disposable metal corneal scalpel, the existing corneal scalpel cannot prompt the cutting depth of the corneal incision and cannot prompt the angle of the cutting direction, an operator can only perform corneal step-type incision operation by taking an iris plane and the surface radian of a cornea as references under an operating microscope according to clinical experience, and the corneal surgical incision can not be made to be standardized. For inexperienced young physicians, the creation of stepped corneal surgical incisions increases the learning curve of the surgery, while increasing the instability of the surgical incision creation.
With the medical progress, the requirement on the operation quality is increased day by day, and the idea innovation of the refractive cataract operation further increases the requirement on the corneal operation incision making. The excimer laser assisted cataract extraction operation can complete repeatable and standardized stepped corneal incision on the cornea through the operability and high accuracy of excimer laser, greatly improves the homogenization level of corneal operation incision and improves the safety. However, the excimer laser assisted cataract extraction greatly increases the operation cost, and limits the popularization of clinical application.
Disclosure of Invention
An object of the utility model is to provide a can fix a position, decide ophthalmology cornea scalpel of angle, it is to two ladder cornea incision preparation, has the depth of cut of location, suggestion cutting angle effect, further improves the standardization and the security of cornea incision preparation, shortens the study curve of operation.
The utility model discloses a realize through following technical scheme: the utility model provides a can fix a position, decide ophthalmic cornea scalpel of angle, it includes the type tool bit of bending of handle of a knife, handle of a knife tip, the type tool bit of bending includes the connecting portion of being connected with the handle of a knife, locates the cutting part that connecting portion head end slope upwards extended the setting, the cutting part with connecting portion are certain angle setting, the cutting part have with the relative positive knife face of handle of a knife, its characterized in that: the connecting portion are provided with connecting portion reflecting bands, the cutting portion main body plane is provided with horizontal reflecting bands, and the end portion of the cutting portion is provided with a cutting depth reflecting mark line.
The cutting part tip blade angle is 60 °.
The included angle between the cutting part main body plane and the axial extension line of the connecting part is 35 degrees.
The cutting part feed depth reflecting mark line is positioned on the front cutter surface of the cutting part, the width of the cutting part feed depth reflecting mark line is 0.1mm, and the distance from the cutting part feed depth reflecting mark line to the tip of the cutting part is 0.6 mm.
The horizontal reflective belt of cutting part is located the cutting part positive knife face, and the width is 0.5mm, apart from cutting part positive knife face widest part line 2mm department.
The connecting part reflective belt is located at the center of the connecting part and is 0.5mm in width.
The utility model has the advantages and beneficial effects that:
through using this novel cornea incision scalpel, the doctor can further indicate operation incision's the depth of cut and angle when carrying out cataract surgery preparation second step cornea incision to improve the standardization and the security of cataract surgery incision preparation, can shorten operation study curve simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of fig. 1 of the present invention.
Fig. 3 is a partial enlarged view of the cutting part of the present invention.
Wherein: 1-cutting depth reflecting mark line, 2-connecting part reflecting band, 3-cutting part horizontal reflecting band, 4-cutting part and 5-connecting part.
Detailed Description
Example (b): as shown in fig. 1-3, a positionable and fixed-angle ophthalmic corneal scalpel, which comprises a handle made of PVC material, and a 4Cr13 stainless steel bending type tool bit at the end of the handle, wherein the bending type tool bit comprises a connecting part 5 connected with the handle and a cutting part 4 arranged on the connecting part 5 and extending upwards in an inclined manner, the surfaces of the connecting part 5 and the cutting part 4 are not polished and are non-reflective surfaces, an included angle between a main body plane of the cutting part 4 and an axial extension line of the connecting part 5 is 35 °, the length of the connecting part 5 is 2mm, the front and back surfaces of the connecting part are smooth planes, the length of the main body of the cutting part 4 is 5mm, the widest part of the main body of the cutting part 4 is 2.8mm Nd, the tip angle of a main body blade of the cutting part 4 is 60 °, and the cutting part 4 has a positive tool face opposite to the handle, and is used: YAG laser metal mirror polishing, carve the depth of cut reflection of light marking line 1 that the width is 0.1mm in the position of the positive knife face of cutting part apart from the most advanced tip of cutting part apart from 0.6mm, carve the horizontal reflection of light area 3 that the width is 0.5mm in the position of 4 main part positive knife faces of cutting part apart from widest part line 2mm, carve the connecting portion reflection of light area 2 that the width is 0.5mm in the 5 central authorities of connecting portion.
When the ophthalmologic operation is carried out, the patient lies on the operating table, the eyes look straight ahead, and the operation eyes are in the horizontal position. The operation microscope is positioned right above the operation eye, the projected light is just vertical to the operation eye, and the operation microscope light source is used as a reflecting light source.
When carrying out two ladder incisions of cataract surgery cornea and making, the doctor handheld the cornea scalpel of this application, makes handle of a knife main part and eyeball position level earlier, and cutting part point is located transparent cornea reason department. Cutting part and connecting portion homoenergetic are in the operation field of vision in the operation, finely tune the handle of a knife position, and obvious reflection of light appears in connecting portion reflection of light area under the microscope, show that connecting portion and operation microscope projection light source are vertical angle, are the level with eyeball surface direction promptly. Because the axial extension line of the connecting part forms an angle of 35 degrees with the plane of the cutting part, namely the cutting part forms an angle of 35 degrees with the plane of the eyeball at the moment, the cutting part is positioned at a proper angle at the moment. The cutting knife is fed into the corneal stroma along the direction until the outer opening of the corneal incision reaches a cutting depth reflection marking line, at the moment, an operator upwards finely adjusts the position of the knife handle by taking the corneal incision as a fulcrum, when the horizontal reflection band of the cutting part under the microscope is obviously reflected, the main plane of the cutting part and the projection light source of the operating microscope show that the main plane of the cutting part and the projection light source of the operating microscope form a vertical angle, namely, the cutting part and the plane of an eyeball form a horizontal position, the cutting knife is continuously fed into the corneal stroma along the direction until the inner opening of the corneal incision reaches the widest part of the cutting part, then the cutting knife is horizontally withdrawn, and the two-step corneal incision is immediately finished. The cornea scalpel can achieve the effects of positioning the cutting depth and prompting the cutting angle.
Claims (6)
1. The utility model provides a can fix a position, decide ophthalmic cornea scalpel of angle, it includes the type tool bit of bending of handle of a knife, handle of a knife tip, the type tool bit of bending includes the connecting portion of being connected with the handle of a knife, locates the cutting part that connecting portion head end slope upwards extended the setting, the cutting part with connecting portion are certain angle setting, the cutting part have with the relative positive knife face of handle of a knife, its characterized in that: the connecting portion are provided with connecting portion reflecting bands, the cutting portion main body plane is provided with horizontal reflecting bands, and the end portion of the cutting portion is provided with a cutting depth reflecting mark line.
2. An positionable, fixed angle ophthalmic corneal scalpel as defined in claim 1, wherein: the cutting part tip blade angle is 60 °.
3. An positionable, fixed angle ophthalmic corneal scalpel as defined in claim 1, wherein: the included angle between the cutting part main body plane and the axial extension line of the connecting part is 35 degrees.
4. An positionable, fixed angle ophthalmic corneal scalpel as defined in claim 1, wherein: the cutting part feed depth reflecting mark line is positioned on the front cutter surface of the cutting part, the width of the cutting part feed depth reflecting mark line is 0.1mm, and the distance from the cutting part feed depth reflecting mark line to the tip of the cutting part is 0.6 mm.
5. An positionable, fixed angle ophthalmic corneal scalpel as defined in claim 1, wherein: the horizontal reflective belt of cutting part is located the cutting part positive knife face, and the width is 0.5mm, apart from cutting part positive knife face widest part line 2mm department.
6. An positionable, fixed angle ophthalmic corneal scalpel as defined in claim 1, wherein: the connecting part reflective belt is located at the center of the connecting part and is 0.5mm in width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120729198.2U CN214909122U (en) | 2021-04-12 | 2021-04-12 | Ophthalmic cornea scalpel capable of positioning and fixing angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120729198.2U CN214909122U (en) | 2021-04-12 | 2021-04-12 | Ophthalmic cornea scalpel capable of positioning and fixing angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214909122U true CN214909122U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120729198.2U Active CN214909122U (en) | 2021-04-12 | 2021-04-12 | Ophthalmic cornea scalpel capable of positioning and fixing angle |
Country Status (1)
| Country | Link |
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| CN (1) | CN214909122U (en) |
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2021
- 2021-04-12 CN CN202120729198.2U patent/CN214909122U/en active Active
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