CN215130886U - Astigmatic intraocular lens implantation marking device based on ophthalmic slit lamp microscope - Google Patents

Abstract

The utility model relates to the field of medical equipment, more specifically relates to a marker device is implanted to astigmatism intraocular lens based on ophthalmology slit lamp microscope, marker device includes base, installing support and cornea astigmatism marker, the installing support install in on the base, cornea astigmatism marker detachable swing joint in on the installing support. The utility model can simply, conveniently, accurately and efficiently assist the patient to complete accurate astigmatic intraocular lens implantation marking before the operation, reduce artificial errors and corneal damage to the patient; on the other hand, the size of the projection can be changed by adjusting the distance between the corneal astigmatism marker and the cornea of a patient so as to adapt to the requirements of patients with different cornea sizes, and the purpose of accurate marking is achieved.

Description

Astigmatic intraocular lens implantation marking device based on ophthalmic slit lamp microscope

Technical Field

The utility model relates to the field of medical equipment, more specifically relates to a marking device is implanted to astigmatic intraocular lens based on ophthalmology slit lamp microscope.

Background

At present, China enters an aging society, the incidence rate of senile cataract is higher and higher, wherein the senile cataract combined with corneal astigmatism is a common ametropia, epidemic disease investigation and research show that about 20% of patients have medium-high astigmatism of more than 1.5D, and clinical observation shows that the vision and visual quality are reduced due to the 1.5D corneal astigmatism, so that the astigmatism seriously influences the recovery of the vision after cataract operation, and the life quality is reduced. The presence of an intraocular lens to correct astigmatism has combined cataract extraction and astigmatism correction. The artificial lens can correct corneal astigmatism by the astigmatism type artificial lens while treating cataract, greatly improves the rate of glasses removal after operation, improves the life quality of cataract patients, and provides a new means for treating cataract and corneal astigmatism. However, in the process of implanting the astigmatic intraocular lens, the accurate coincidence of the intraocular lens and the maximum refractive power meridian (astigmatic axis) of the cornea is ensured, so that the optimal correction effect is achieved, if the coincidence of the intraocular lens and the maximum refractive power meridian (astigmatic axis) has deviation, the correction is seriously influenced, and therefore the astigmatic axis of a patient is accurately marked, the intraocular lens is accurately implanted into the capsular bag, and the method has important significance for accurately completing the operation. Modern patients have an unprecedented pursuit for quality of life, and it is the direction of constant effort by all people in this field to get the best visual results after surgery for patients.

Because the positions of eyeballs of a patient in a sitting position and a supine position are slightly different, the sitting position and the standing position are the common positions of human visual objects, the axis of the astigmatic artificial lens is marked by taking the sitting position as a standard, which is the reason why the axis of astigmatism cannot be directly marked in the operation. The axis marking of the prior art astigmatic intraocular lens needs to be completed in two steps. Firstly, in preparation before an operation, a patient sits at the head ahead, the cornea at the corneal limbus at the horizontal positions of 0 degree and 180 degrees is slightly scraped by a needle head under the assistance of slit light of a slit lamp, and then a special marking pen is used for dyeing and marking; and secondly, in the operation, the patient is in the supine position, the positions marked by the sitting positions of 0 degree and 180 degrees are taken as references, an astigmatism marker is used, the needle slightly scrapes the cornea at the corneal limbus, a special marking pen is used for dyeing and marking the specific astigmatism axis (such as 104 degrees, 95 degrees and the like) of the patient, then an astigmatism artificial lens is implanted according to the marked position, and the astigmatism axis is adjusted to be coincident with the marked axis on the cornea, so that the operation is completed.

The current common marking method is that when preoperative preparation is carried out, horizontal positions of 0 degrees and 180 degrees are marked under the assistance of a slit lamp slit light band, due to the fact that the slit lamp is not designed with the function of marking astigmatism, the width of the slit light band is different, even the finest light band cannot reach the accuracy of 1 degree, and operation errors of a marker possibly exist, the horizontal positions of 0 degrees and 180 degrees cannot be accurately marked. In addition, the mark device is used for marking the astigmatism axis of the patient again in the operation, so that the operation increases the corneal damage to the patient, the flow steps of the operation are increased, and errors are easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at overcoming above-mentioned prior art's at least one kind defect (not enough), provide an astigmatism intraocular lens implants preoperative mark device based on ophthalmology slit lamp microscope for improve the precision and the accuracy of astigmatism axle position mark, reduce patient's cornea damage.

The utility model discloses the technical scheme who takes is, a mark device before astigmatism intraocular lens implants based on ophthalmology slit lamp microscope, including base, installing support and cornea astigmatism marker, the installing support install in on the base, cornea astigmatism marker detachable swing joint in on the installing support.

The utility model discloses in, set up between patient and slit lamp microscope marking device can assist the patient to once only accomplish the scale mark that accurate astigmatic intraocular lens was implanted in the seat when preparing before the art, simple and convenient, accurate high-efficient, reduction doctor's work load also reduces human error, reduces the cornea damage to the patient, and the accurate implantation of supplementary astigmatic intraocular lens obtains the best correction effect of postoperative. The base is used for placing a slit lamp microscope; the mounting bracket is used for mounting and fixing the corneal astigmatism marker; the cornea astigmatism marker is used for projecting and forming the scale light with colors on the surface cornea of the eye of a patient, on the other hand, the cornea astigmatism marker is movably connected with the mounting support, so that a doctor can adjust the position of the cornea astigmatism marker on the mounting support, thereby adjusting the distance between the cornea astigmatism marker and the cornea of the patient, adapting to the condition that the sizes of the corneas of different patients, namely the sizes of the transverse diameters of the corneas are different, ensuring that the projection is matched and covers the corneal limbus of the patient, and achieving the purpose of accurate marking.

Furthermore, the cornea astigmatism marker comprises a marking sheet, a connecting pipe, a colored bulb and a clamp, wherein the clamp is movably connected with the mounting bracket, the marking sheet and the clamp are arranged at two ends of the cornea astigmatism marker, the connecting pipe is connected with the marking sheet and the clamp, and the colored bulb is arranged between the marking sheet and the connecting pipe.

Furthermore, mark piece circumference is provided with a plurality of scale marks, the scale mark marks current scale mark position and horizontal position contained angle, the scale mark is light-tight, the scale mark includes at least corresponding 10n first scale mark and corresponding (10n +5) degree second scale mark, wherein n is the integer between 0 ~ 17.

Furthermore, the connecting pipe is made of a flexible and bendable metal material.

The utility model discloses in, coloured bulb can be through connecting battery equipment such as button cell, sends out coloured light, and light sees through the mark piece and jetts into the patient intraocular, and because the scale mark of mark piece is opaque, then light will form the coloured projection that has the scale mark through the mark piece on patient's eye table cornea, and the doctor then can accurately accomplish astigmatic intraocular lens according to the projection and implant the scale mark. And a plurality of scale marks are circumferentially arranged on the mark sheet and used for indicating the size of an included angle between the position of the current scale mark and the horizontal position, wherein the scale marks at least comprise a first scale mark which is arranged every 10 degrees and a second scale mark which is arranged every 5 degrees, and more preferably, the mark also can be provided with a third scale mark which is arranged every 1 degree so as to improve the marking accuracy of doctors to the range of 1 degree. Meanwhile, the connecting pipe is mainly used for bending and fixing the marking piece according to the position of the eyes of the patient, and the colored bulb can be projected on the ocular surface in the positive direction through the light of the marking piece. The clamp is movably connected with the mounting bracket and is mainly used for well mounting and fixing the corneal astigmatism marker on the mounting bracket, so that a doctor can mount or take off the corneal astigmatism marker according to the working requirement, and can move the corneal astigmatism marker leftwards and rightwards according to the actual requirement during use so as to adapt to the positions of eyes of different patients.

Further, anchor clamps include U type holder, splint and regulation double-screw bolt, splint movable mounting in the U type holder, the regulation double-screw bolt connect in the U type holder outside, the regulation double-screw bolt with splint link to each other, through rotating the regulation double-screw bolt change splint with U type holder inner wall interval.

The utility model discloses in, the U type holder and the splint of anchor clamps form the recess, adjust the interval of splint and U type holder inner wall through the adjusting screw bolt to adjust the splint elasticity, make splint and U type holder cooperation press from both sides tightly or loosen the installing support, be used for realizing fixed and activity and the dismantlement of cornea astigmatism marker on the installing support.

Further, the marker device further comprises a frontal band connected to the mounting bracket, the frontal band being vertically higher than at least a lowest position of the corneal astigmatism marker.

Furthermore, the marking device also comprises a lower jaw support, the lower jaw support is connected with the mounting support, and the lower jaw support is positioned below the corneal astigmatism marker.

Furthermore, a height adjusting handle is arranged on the mounting bracket and connected with the lower jaw support so as to adjust the height position of the lower jaw support on the mounting bracket.

The utility model discloses in, set up the forehead area mainly used and support patient's forehead, prevent that patient's head position from surpassing marking device's mark scope, at the mark in-process, the extreme lower position of the vertical direction of cornea astigmatism marker generally is mark piece position, and the mark piece need aim at patient's eyes and just can carry out the work of marking, and eyes are in the forehead below, so set up the forehead area and be higher than at least cornea astigmatism marker's extreme lower position. In addition, the effect that the lower jaw held in the palm mainly is for holding patient's head for patient's face perpendicular ground reaches the effect of stabilizing patient's head, reduces the mark error that patient's head rocked and brought. And the height adjustment handle mainly used adjusts the position that the lower jaw held in the palm on the installing support to adapt to different head size patients 'inspection demand, make patient's eye position adjustment to the position that the doctor can observe through the slit lamp simultaneously.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model can help the patient to complete the accurate scale mark of astigmatic intraocular lens implantation at one time when the patient is in preoperative preparation, is simple, convenient, accurate and efficient, reduces the workload of doctors, also reduces human errors, reduces the corneal damage to the patient, and assists the astigmatic intraocular lens to be implanted accurately; on the other hand, the cornea astigmatism marker can be detachably and movably connected with the mounting support, the size of projection can be changed by adjusting the distance between the cornea astigmatism marker and the cornea of a patient, so that the device can adapt to the requirements of patients with different cornea sizes, the purpose of accurate marking is achieved, the device can be detached and assembled at any time, the device is favorable for being applicable to different ophthalmic slit lamp microscope devices, and the wide applicability is realized.

Drawings

Fig. 1 is an overall structure diagram of the present invention.

Fig. 2 is a diagram of a corneal astigmatism marker according to the present invention.

Fig. 3 is a schematic view of the middle mark sheet of the present invention.

Fig. 4 is a projection diagram of the ocular surface of a patient in the embodiment.

Description of reference numerals: the device comprises a marking sheet 1, a colored bulb 2, a connecting pipe 3, a U-shaped clamp seat 4, a forehead band 5, a lower jaw support 6, a height adjusting handle 7, a base 8, a clamp plate 9 and an adjusting stud 10.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in fig. 1, the present embodiment provides an astigmatic intraocular lens implantation preoperative marking device based on an ophthalmic slit lamp microscope, which includes a base 8, a mounting bracket mounted on the base 8, and a corneal astigmatism marker detachably and movably connected to the mounting bracket.

In this embodiment, set up between patient and slit lamp microscope marking device can assist the patient to sit the scale mark that once only accomplishes accurate astigmatic intraocular lens and implant when the preparation before the art, and simple and convenient, accurate high efficiency, reduction doctor's work load also reduce human error, reduce the cornea damage to the patient, supplementary astigmatic intraocular lens is accurate to be implanted, obtains the best correction effect of postoperative. Wherein, the base 8 is used for placing a slit-lamp microscope; the mounting bracket is used for mounting and fixing the corneal astigmatism marker; the corneal astigmatism marker is used for projecting and forming a scale light with color on the surface cornea of the eye of a patient, as shown in fig. 4, on the other hand, the corneal astigmatism marker is movably connected with the mounting support, so that a doctor can adjust the position of the corneal astigmatism marker on the mounting support, and adjust the distance between the corneal astigmatism marker and the cornea of the patient, so as to adapt to the situation that the sizes of the corneas of different patients, namely the sizes of the transverse diameters of the corneas, are different, ensure that the projection is coincided and covers the corneal limbus of the patient, so as to achieve the purpose of accurate marking, meanwhile, the corneal astigmatism marker can be detached when not needed, is suitable for ophthalmic slit lamp microscope equipment of different models, is used as a standby auxiliary device, prevents the corneal astigmatism marker from being damaged or prevents the normal use of the slit lamp microscope at other times, and has wider applicability.

Further, as shown in fig. 2, the corneal astigmatism marker includes a marking sheet 1, a connecting pipe 3, a colored bulb 2 and a clamp, the clamp is movably connected to the mounting bracket, the marking sheet 1 and the clamp are disposed at two ends of the corneal astigmatism marker, the connecting pipe 3 connects the marking sheet 1 and the clamp, and the colored bulb 2 is disposed between the marking sheet 1 and the connecting pipe 3.

Further, as shown in fig. 3, the marking sheet 1 is circumferentially provided with a plurality of scale marks, the scale marks mark included angles between the current scale mark position and the horizontal position, the scale marks are opaque, the scale marks at least comprise a first scale mark corresponding to 10n degrees and a second scale mark corresponding to (10n +5) degrees, wherein n is an integer between 0 and 17.

Further, the connecting tube 3 is made of a flexible and bendable metal material.

In this embodiment, the colored bulb 2 can emit colored light by connecting battery devices such as button batteries, and the light penetrates through the marking sheet 1 and is emitted into the eye of the patient, and since the scale marks of the marking sheet 1 are opaque, the light forms a colored projection with the scale marks on the cornea of the ocular surface of the patient through the marking sheet 1, as shown in fig. 4, a doctor can accurately complete the astigmatic intraocular lens implantation scale marks according to the projection. The marking sheet 1 is circumferentially provided with a plurality of scale marks for indicating the size of an included angle between the current scale mark position and the horizontal position, wherein the scale marks at least comprise a first scale mark which is arranged every 10 degrees and a second scale mark which is arranged every 5 degrees, and more preferably, the marking sheet can also be provided with a third scale mark which is arranged every 1 degree so as to improve the marking accuracy of a doctor to be within a range of 1 degree. Meanwhile, the connecting pipe 3 is mainly used for fixing the marking sheet 1 in a bending way according to the position of the eyes of the patient, and the colored bulb 2 can be ensured to project the light rays penetrating through the marking sheet 1 on the ocular surface in the positive direction. The clamp is movably connected with the mounting bracket and is mainly used for well mounting and fixing the corneal astigmatism marker on the mounting bracket, so that a doctor can mount or take off the corneal astigmatism marker according to the working requirement, and can move the corneal astigmatism marker leftwards and rightwards according to the actual requirement during use so as to adapt to the positions of eyes of different patients.

Further, anchor clamps include U type holder 4, splint 9 and adjusting stud 10, splint 9 movable mounting in U type holder 4, adjusting stud 10 connect in the U type holder 4 outside, adjusting stud 10 with splint 9 links to each other, through rotating adjusting stud 10 changes splint 9 with the 4 inner wall intervals of U type holder.

In this embodiment, the U-shaped holder 4 and the clamping plate 9 of the fixture form a groove, and the distance between the clamping plate 9 and the inner wall of the U-shaped holder 4 is adjusted by adjusting the stud 10, so as to adjust the tightness of the clamping plate 9, and the clamping plate 9 and the U-shaped holder 10 are matched to clamp or loosen the mounting bracket, so as to fix, move and detach the corneal astigmatism marker on the mounting bracket.

Further, the marking device also comprises a frontal band 5, the frontal band 5 is connected with the mounting bracket, and the frontal band 5 is at least higher than the lowest position of the corneal astigmatism marker in the vertical direction.

Further, the marking device further comprises a lower jaw support 6, the lower jaw support 6 is connected with the mounting support, and the lower jaw support 6 is located below the corneal astigmatism marker.

Further, a height adjusting handle 7 is arranged on the mounting bracket, and the height adjusting handle 7 is connected with the lower jaw support 6 so as to adjust the height position of the lower jaw support 6 on the mounting bracket.

In the embodiment, the forehead belt 5 is mainly used for abutting against the forehead of the patient and preventing the head of the patient from exceeding the marking range of the marking device, the lowest position of the corneal astigmatism marker in the vertical direction is generally the position of the marking sheet 1 in the marking process, the marking sheet 1 needs to be aligned with the eyes of the patient to carry out marking work, and the eyes are below the forehead, so that the forehead belt 5 is at least higher than the lowest position of the corneal astigmatism marker. In addition, the lower jaw support 6 mainly supports the head of the patient, so that the face of the patient is perpendicular to the ground, the head of the patient is stabilized, and the marking error caused by shaking of the head of the patient is reduced. And height adjustment handle 7 mainly used adjusts the position of jaw support 6 on the installing support to adapt to the inspection demand of different head size patients, make patient's eye position adjustment reach the position that the doctor can observe through the slit lamp simultaneously.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. An astigmatic intraocular lens implantation marking device based on an ophthalmic slit-lamp microscope, comprising a base, a mounting bracket and a corneal astigmatism marker, wherein the mounting bracket is mounted on the base, and the corneal astigmatism marker is detachably and movably connected to the mounting bracket.

2. The astigmatic intraocular lens implantation marking device according to claim 1, wherein the corneal astigmatism marker comprises a marking plate, a connecting tube, a colored bulb, and a clamp, the clamp is movably connected to the mounting frame, the marking plate and the clamp are disposed at two ends of the corneal astigmatism marker, the connecting tube connects the marking plate and the clamp, and the colored bulb is disposed between the marking plate and the connecting tube.

3. An astigmatic intraocular lens implant marking device according to claim 2, wherein the marking piece is circumferentially provided with a plurality of graduations marking the angle between the current graduations position and the horizontal position, the graduations being opaque, the graduations including at least a first graduations corresponding to 10n ° and a second graduations corresponding to (10n +5) °, wherein n is an integer between 0 and 17.

4. An astigmatic intraocular lens implant marking device according to claim 2, wherein the connecting tube is a flexible and bendable metal material.

5. The ophthalmic slit lamp microscope-based astigmatic intraocular lens implant marking device of claim 2, wherein the fixture comprises a U-shaped holder, a clamping plate movably mounted in the U-shaped holder, and an adjusting stud connected to an outer side of the U-shaped holder, the adjusting stud being connected to the clamping plate, wherein a distance between the clamping plate and an inner wall of the U-shaped holder is changed by rotating the adjusting stud.

6. An astigmatic intraocular lens implant marker device based on an ophthalmic slit lamp microscope according to any one of claims 1-5, further comprising a frontal band connected to the mounting bracket, the frontal band being vertically higher than at least a lowest position of the corneal astigmatism marker.

7. An astigmatic intraocular lens implant marking device according to any one of claims 1-5, further comprising a mandibular holder attached to the mounting bracket, the mandibular holder being positioned below the corneal astigmatism marker.

8. An astigmatic intraocular lens implant marking device according to claim 7, wherein a height adjustment grip is provided on the mounting bracket, the height adjustment grip being connected to the mandibular rest for adjusting the height position of the mandibular rest on the mounting bracket.

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