CN218652214U - Axial positioner for astigmatism in operation - Google Patents
Axial positioner for astigmatism in operation Download PDFInfo
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- CN218652214U CN218652214U CN202222328292.4U CN202222328292U CN218652214U CN 218652214 U CN218652214 U CN 218652214U CN 202222328292 U CN202222328292 U CN 202222328292U CN 218652214 U CN218652214 U CN 218652214U
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Abstract
A astigmatism axis position locator in operation belongs to medical apparatus, horizontal axis position marking grooves at two ends of an outer positioning ring are opposite to astigmatism axis position scale marks of 0 degrees and 180 degrees on the surface of the outer positioning ring, a handle is arranged at one end of the outer positioning ring, the central line of the handle is superposed with the line extension lines of the astigmatism axis position scale marks of 0 degrees and 180 degrees on the astigmatism axis position scale ring, axis position adjusting devices at two ends of an axis position adjusting ring correspond to astigmatism axis position mark scales arranged on the outer side wall of the axis position adjusting ring, the axis position adjusting ring and the marking ring are respectively positioned above and below the outer positioning ring, a connecting column groove is formed in the side wall of the marking ring, the connecting column is fixed in the connecting column groove, and cornea mark teeth are arranged at the bottom of the marking ring and opposite to the connecting column groove. The utility model has the advantages that: by using the astigmatism axis positioner in the operation, a doctor can conveniently and safely complete the positioning and marking operation of the astigmatism axis of the astigmatism crystal to be implanted in one step, and further optimize the operation flow of the artificial lens astigmatism axis positioning in the operation.
Description
Technical Field
The utility model belongs to the field of ophthalmic surgery instruments, in particular to an astigmatism axis positioner which is specially used for positioning the implantation axis of an astigmatism crystal in the operation.
Background
The ultrasonic emulsification and ablation combined astigmatism correction type artificial lens implantation of cataract is one of the common operation modes of refractive cataract surgery. The horizontal axis positioning of the cornea before the operation and the astigmatism artificial lens astigmatism axis positioning during the operation are important steps, and the correction effect of the astigmatism after the operation is obviously influenced.
At present, the positioning of the astigmatism axis of the implanted artificial lens is mainly carried out in the operation, and the positioning and marking of the astigmatism axis need to be completed step by step, namely: an astigmatism positioning ring is held by an operator, a zero-degree astigmatism axis is positioned according to a horizontal axis mark of a cornea determined in a cornea before an operation, a disposable syringe needle is used for marking a scratch on corneal epithelium according to an astigmatism axis of an artificial lens to be implanted, and finally an operation marking pen is used for dyeing and marking the scratch.
After the positioning by the step marking method, the syringe needle point is used for marking step by step, and the astigmatism positioning ring is slightly deviated, which can cause the movement of the cornea positioning point and cause the deviation of the astigmatism axis mark.
Disclosure of Invention
An object of the utility model is to provide an astigmatism axis position locator in art, it will be scattered the optical axis location and go on with cornea mar mark in step, has avoided because of the scattered optical axis location skew risk that multistep operation arouses, simplifies the step simultaneously, makes things convenient for the operation doctor to operate. The utility model aims at realizing through the following technical scheme: an intraoperative astigmatic axial positioner, comprising: the cornea marking device comprises an outer positioning ring, an axis adjusting ring, a marking ring, an axis adjusting button, a cornea marking tooth and a handle; the two ends of the outer positioning ring are relatively provided with horizontal axis marking grooves, an astigmatic axis scale ring is arranged on the surface of the outer positioning ring, 0-degree and 180-degree axis scale marks of the astigmatic axis scale ring are arranged just opposite to the horizontal axis marking grooves, the handle is arranged at one end of the outer positioning ring, the central line of the handle coincides with the line extension lines of the 0-degree and 180-degree axis scale marks of the astigmatic axis scale ring, axis position adjusting devices are symmetrically arranged at the two ends of the axis position adjusting ring, astigmatic axis mark scales are correspondingly arranged on the outer side wall of the axis position adjusting ring and the axis position adjusting devices, the axis position adjusting ring is arranged above the outer positioning ring, the marking ring is a bottom cover with a spigot and is positioned below the outer positioning ring, the spigot side wall of the marking ring is symmetrically provided with connecting column grooves, the axis position adjusting devices on the axis position adjusting ring penetrate through the outer positioning ring and are fixed in the connecting column grooves of the marking ring, and the bottom cover and the connecting column of the marking ring are relatively provided with cornea marking teeth. The upper surface of the outer positioning ring is provided with a rubber ring groove, and a resistance rubber ring is arranged in the rubber ring groove. One end of the handle is provided with a connecting part, and the handle is connected with the outer positioning ring through the connecting part. The plane of connecting portion and the axis of handle are 145 degrees contained angles.
The shaft position adjusting device is connected with the connecting column into an integral structure through a shaft position adjusting button and is welded and fixed with the shaft position adjusting ring.
The utility model has the advantages that:
1. by using the astigmatism axis positioner in the operation, a doctor can conveniently and safely complete astigmatism axis positioning and marking operation of the implanted astigmatism intraocular lens in one step, and further improve the standardization and the accuracy of astigmatism axis positioning.
2. The device is specially used for positioning the astigmatism axis of the implanted astigmatism artificial lens, further improves the standardization and the accuracy of the positioning of the astigmatism axis of the lens, and simplifies the positioning operation of the astigmatism axis.
3. The positioning device is provided with a horizontal shaft for positioning, and can adjust the astigmatism mark angle and the cornea mark tooth, so that the positioning and marking operation of the cornea astigmatism axis of the implanted artificial lens is completed in one step, and the positioning process of the cornea axis of the artificial lens is simpler, more convenient and more standardized.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a partially enlarged view of fig. 2.
Fig. 4 is an exploded view of the present invention.
Fig. 5 is a side view of the present invention.
Wherein:
1-axis position adjusting ring, 2-resistance rubber ring, 3-outer layer positioning ring, 4-handle, 5-marking ring, 6-axis position adjusting button, 7-astigmatism axis position marking scale, 8-connecting column, 9-rubber ring groove, 10-astigmatism axis position scale ring, 11-horizontal axis position marking groove, 12-connecting column groove and 13-cornea marking tooth.
Detailed Description
The embodiment is as follows: as shown in fig. 1-5, an astigmatism shaft locator for operation comprises an outer positioning ring 3 made of 4Cr13 stainless steel, a shaft position adjusting ring 1, a marking ring 5, a shaft position adjusting button 6, a cornea marking tooth 13 and a handle 4; the outer positioning ring 3 is 12mm in outer diameter, 6mm in inner diameter, 3mm in thickness and 3mm in ring width, horizontal axis marking grooves 11 are symmetrically formed in two ends of the outer positioning ring 3, the depth of each horizontal axis marking groove 11 is 1mm, the height of each horizontal axis marking groove 11 is 3mm, an astigmatic axis position scale ring 10 is laser-engraved at a position 2mm away from the inner ring of the upper surface of the outer positioning ring 3, and axial position scale marks of 0 degree and 180 degrees of the astigmatic axis position scale ring 10 are opposite to the tip end of each horizontal axis position marking groove 11; a rubber ring groove 9 is formed in the position, 0.5mm away from the inner ring, of the upper surface of the outer positioning ring 3, the width of the rubber ring groove is 0.5mm, the depth of the rubber ring groove is 0.5mm, a resistance rubber ring 2 is installed in the rubber ring groove 9, the diameter of the resistance rubber ring 2 is 7mm, the cross section diameter of the resistance rubber ring is 0.5mm, the handle 4 is a cylindrical solid stainless steel part, the diameter of the handle 4mm is 4mm, the length of the handle 4 cm is 10cm, the surface of the handle 4 is an anti-skid rough surface, a U-shaped connecting portion is arranged at one end of the handle 4, the thickness of the U-shaped connecting portion is 3mm, the width of the U-shaped connecting portion is 4mm, an included angle of 145 degrees is formed between the plane of the U-shaped connecting portion and the central axis of the handle 4, the handle 4 and the U-shaped connecting portion are of an integral structure, the handle 4 is connected with the outer positioning ring 3 through the U-shaped connecting portion, the contact surface of the U-shaped connecting portion and the outer positioning ring 3 is 1mm, and the central axis of the handle 4 coincides with connecting lines marked by axial scales of 0 degree and 180 degrees; the outer diameter of the axis adjusting ring 1 is 9.5mm, the inner diameter is 6mm, the thickness is 2mm, two ends of the axis adjusting ring 1 are symmetrically welded and fixed with axis adjusting devices, the axis adjusting devices are formed by connecting a right trapezoid dial type axis adjusting button 6 and a connecting column 8 into a whole, the thickness of the axis adjusting button 6 is 0.5mm, the height is 2mm, the bottom length is 2.25mm, the top length is 1.25mm, the length of the connecting column 8 is 4.1mm, the width is 0.5mm and the thickness is 0.5mm, astigmatism axis marking scales 7 are arranged on the outer side wall of the axis adjusting ring 1 corresponding to the axis adjusting devices, the width of the astigmatism axis marking scales 7 is 0.5mm, the height is 2mm, the astigmatism axis marking scales 7 are coplanar with the axis adjusting button 6 and the connecting column 8, the axis adjusting ring 1 is arranged above the outer layer 3, the marking ring 5 is a bottom cover with a spigot and is positioned below the outer positioning ring 3, the spigot outer diameter of the marking ring 5 is 6mm, the inner diameter is 5mm, the height is 3mm, the wall thickness is 0.5mm, a connecting column groove 12 is symmetrically arranged on the spigot side wall of the marking ring 5, the width of the connecting column groove 12 is 0.5mm, the height is 2mm, a connecting column 8 on the shaft position adjusting ring 1 penetrates through the outer positioning ring 3 and is fixed in the connecting column groove 12, the shaft position adjusting ring 1 and the marking ring 5 are welded and fixed in an aligning mode through the connecting column 8 and the connecting column groove 12, the convex edge of the marking ring 5 is 2mm wide and 0.5mm thick, the bottom cover is provided with cornea marking teeth 13 relative to the connecting column groove 12, the length of the cornea marking teeth 13 is 1mm, the height is 1mm, the bottom width is 0.5mm, and the tip width is 0.1mm.
The working principle is as follows:
when the astigmatic intraocular lens is implanted into the astigmatic axis for positioning, the operating eye of the patient lies on the operating table after the surface anesthetic is dropped and the conjunctival sac is disinfected, the two eyes look straight ahead, and the microscope light source is vertical to the corneal plane at the moment.
The operator determines the astigmatism axis of the implanted astigmatism artificial lens according to the preoperative examination result, firstly adjusts the axis adjusting ring, so that the axis mark scale on the axis adjusting ring is superposed with the scale mark corresponding to the expected astigmatism axis on the outer positioning ring, and at the moment, the position of the cornea mark tooth corresponding to the axis adjusting ring is adjusted to the position corresponding to the expected astigmatism axis. The operator holds the handle by hand to place the locator right above the cornea, adjusts the position to enable the horizontal axis marking grooves on the two sides of the outer positioning ring to coincide with marked horizontal axis marking points on the cornea, and at the moment, the horizontal axis of the outer positioning ring coincides with the horizontal axis of the cornea. The operator vertically presses the locator on the corneal marking teeth on the marking ring from the cornea to the bottom layer along the central line direction of the cornea to scratch the corneal epithelium, takes out the locator, and uses an operation marking pen to dye the scratched part, namely the positioning of the astigmatism axis of the artificial lens is completed.
Claims (5)
1. An intraoperative astigmatic axial positioner, comprising: the cornea marking device comprises an outer positioning ring, an axis adjusting ring, a marking ring, an axis adjusting button, a cornea marking tooth and a handle; the two ends of the outer positioning ring are relatively provided with horizontal axis marking grooves, an astigmatic axis scale ring is arranged on the surface of the outer positioning ring, 0-degree and 180-degree axis scale marks of the astigmatic axis scale ring are arranged just opposite to the horizontal axis marking grooves, the handle is arranged at one end of the outer positioning ring, the central line of the handle coincides with the line extension lines of the 0-degree and 180-degree axis scale marks of the astigmatic axis scale ring, axis position adjusting devices are symmetrically arranged at the two ends of the axis position adjusting ring, astigmatic axis mark scales are correspondingly arranged on the outer side wall of the axis position adjusting ring and the axis position adjusting devices, the axis position adjusting ring is arranged above the outer positioning ring, the marking ring is a bottom cover with a spigot and is positioned below the outer positioning ring, the spigot side wall of the marking ring is symmetrically provided with connecting column grooves, the axis position adjusting devices on the axis position adjusting ring penetrate through the outer positioning ring and are fixed in the connecting column grooves of the marking ring, and the bottom cover and the connecting column of the marking ring are relatively provided with cornea marking teeth.
2. The intraoperative astigmatic axial locator of claim 1, wherein: the upper surface of outer holding ring is equipped with the rubber circle recess, installs the resistance rubber circle in the rubber circle recess.
3. The intraoperative astigmatic axis locator of claim 1, wherein: one end of the handle is provided with a connecting part, and the handle is connected with the outer positioning ring through the connecting part.
4. The intraoperative astigmatic axis locator of claim 3, wherein: the plane of connecting portion and the axis of handle are 145 degrees contained angles.
5. The intraoperative astigmatic axis locator of claim 1, wherein: the shaft position adjusting device is connected with the connecting column into an integral structure through a shaft position adjusting button and is welded and fixed with the shaft position adjusting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222328292.4U CN218652214U (en) | 2022-09-02 | 2022-09-02 | Axial positioner for astigmatism in operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222328292.4U CN218652214U (en) | 2022-09-02 | 2022-09-02 | Axial positioner for astigmatism in operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218652214U true CN218652214U (en) | 2023-03-21 |
Family
ID=85559311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222328292.4U Active CN218652214U (en) | 2022-09-02 | 2022-09-02 | Axial positioner for astigmatism in operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218652214U (en) |
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2022
- 2022-09-02 CN CN202222328292.4U patent/CN218652214U/en active Active
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