CN117770756A

CN117770756A - Knob type astigmatism correcting device

Info

Publication number: CN117770756A
Application number: CN202410126174.6A
Authority: CN
Inventors: 张毅俊; 邵芹; 余井兵
Original assignee: Jiangsu Konska Medical Instrument Co ltd
Current assignee: Jiangsu Konska Medical Instrument Co ltd
Priority date: 2024-01-30
Filing date: 2024-01-30
Publication date: 2024-03-29

Abstract

The invention discloses a knob-type astigmatism correcting device, which comprises a handle, wherein the top of the handle is provided with a connecting mechanism, a connecting shaft is sleeved in the connecting mechanism, the top and the bottom of the outer side of the connecting shaft are fixedly provided with second hinge plates, the middle position of the outer side of the connecting shaft is provided with a fixed gear, and the top of the second hinge plate is provided with a fixed sleeve. According to the invention, through the mutual hinging between the second hinging plate and the first hinging plate, the handle and the fixed sleeve can rotate at random angles, the fixed rack and the fixed gear are mutually separated, at the moment, the fixed gear is released from fixation, the fixed sleeve can be driven to rotate through the internal rotation of the second hinging plate in the first hinging plate, so that the angle between the fixed sleeve and the handle is changed, a doctor can adjust to the optimal angle through the correcting device, the doctor can feel more comfortable and more convenient during use, and the burden of operation is reduced.

Description

Knob type astigmatism correcting device

Technical Field

The invention relates to the technical field of a correcting device, in particular to a knob-type astigmatism correcting device.

Background

Astigmatism is an abnormal refractive appearance of the eye, and is related to the radian of the cornea, and after parallel rays enter the eye, the eye cannot gather at one point (focus) due to the unequal refractive powers of the eyeballs on different meridians, so that a clear object image cannot be formed, and the situation is called astigmatism. The astigmatic eye cannot form a clear image by either accommodation or by moving the object to the eye, and a clear image can be formed on the retina only by wearing a suitable cylindrical lens. Depending on the form of presentation, astigmatism can be divided into regular astigmatism, which can be corrected with a lens, and irregular astigmatism, which cannot be corrected with a lens.

Based on the patient history, symptoms, near-far vision, and ophthalmic examination results, a diagnosis of astigmatism can be made. Checking and diagnosing key points: the low astigmatism is far away and the near vision is normal; the people with high astigmatism have long distance, poor near vision, blurred vision and easy asthenopia; various astigmatism can be found by examination with a placido disc and a keratometer; the eyesight of various types of scattered light lenses can be improved by trying on the glasses. The astigmatic eye which can be corrected by the operation method and has more than 1 diopter and obviously influences the vision can be considered to be treated by the operation. Patients are intolerant to spectacles or contact lenses and those who do not want to use spectacles or contact lenses may also consider treatment with refractive surgery.

Surgical treatment of astigmatism is mainly applicable to correction of high astigmatism, such as congenital keratoastigmatism, or surgical keratoastigmatism, and is aimed at reducing the astigmatism after surgery, in particular when cataract and high myopia are operated, in order to assist in correcting the astigmatism, measurement and positioning of the eye are required. Therefore, the vision corrector can solve the problem of measuring the degree in the astigmatism correction operation, is flexible to use, accurate in measurement and convenient to operate, and can improve the operation quality and efficiency.

The current but existing vision correcting device has certain defects when in use:

1. because all parts of the correcting device are of fixed structures, a doctor cannot conveniently adjust the angle between the handle and the measuring part when using the correcting device, and cannot adjust the optimal taking angle of the doctor, and the difficulty of the doctor operation is increased because of long-time taking and uncomfortable feeling of the doctor's arm during operation.

2. Meanwhile, when the measurement is carried out, a doctor needs to operate with two hands, holds the handle with one hand, rotates the measured part by an angle with the other hand, and the measurement part shakes caused by the force of the two hands during the measurement, so that the measurement is inaccurate, and meanwhile, the doctor needs to carry out a plurality of complicated steps with the two hands during the operation, so that the operation time is delayed.

3. And after the appliance is used for a period of time, if a single part is damaged, the whole appliance needs to be replaced because the appliance is integrally and fixedly installed, so that not only is the resource wasted, but also the medical cost is increased.

Disclosure of Invention

The present invention is directed to a knob-type astigmatic visual corrector for solving the above-mentioned related problems.

In order to achieve the above purpose, the present invention provides the following technical solutions: the knob-type astigmatism correcting device comprises a handle, wherein the handle is provided with a connecting mechanism at the top of the handle, a connecting shaft is sleeved in the connecting mechanism, a second hinge plate is fixedly arranged at the top and the bottom of the outer side of the connecting shaft, a fixed gear is arranged at the middle position of the outer side of the connecting shaft, a fixed sleeve is arranged at the top of the second hinge plate, a stirring gear is rotatably arranged at the bottom of one side of the fixed sleeve, a rotating shaft is rotatably arranged at the top of the inner side of the fixed sleeve, a driving gear and a second transmission gear are respectively arranged at the top and the bottom of the rotating shaft, and a rotation measuring mechanism is arranged at one side of the fixed sleeve.

Preferably, the connecting mechanism comprises a first hinge plate, a sliding through groove, a reset spring, a sliding rod, a fixed rack, a limit sleeve, an installation slot and a magnet, wherein the top of the first hinge plate is positioned at the top of the handle, the sliding through groove is formed in the two ends of the first hinge plate, the sliding through groove is arranged in the sliding through groove in a sliding mode, the sliding rod is arranged at the top of the sliding rod, the fixed rack is arranged at the top of the sliding rod, the reset springs are arranged at the two sides of the bottom of the fixed rack, the installation slot is formed in the two ends of the top of the first hinge plate, the limit sleeve is arranged at the top of the two ends of the first hinge plate in a sliding mode, and the magnet is arranged at the edge of the bottom of the limit sleeve.

Preferably, the rotation measurement mechanism comprises a dial, a support ring, rollers, annular racks, a rotating head, scale grooves and a first transmission gear, wherein the dial is located at the top of one side of the fixed sleeve, the bottom of the inner side of the dial is provided with the support ring, the edge of the top of the support ring is provided with four groups of rollers, the rotating head is sleeved inside the dial, the annular racks are arranged at the top of the outer side of the rotating head, the scale grooves are formed at the two ends of the top of the dial, and the first transmission gear is rotationally arranged at the middle position of one side of the dial.

Preferably, the connecting shaft is located in the installation slot, and the two sets of limit sleeves are sleeved on the outer side of the connecting shaft.

Preferably, the limiting telescopic rods are arranged on two sides of the limiting sleeve, and the limiting telescopic rods are located in the first hinge plate to slide.

Preferably, the toggle gear is meshed with the second transmission gear, and the driving gear is meshed with the first transmission gear.

Preferably, the fixed rack is located inside the first hinge plate, and the fixed rack and the fixed gear are meshed with each other.

Preferably, one side of the return spring is fixedly connected with the inner part of the first hinge plate, and the sliding rod is positioned between the two groups of return springs.

Preferably, both ends of the sliding rod are provided with pushing blocks, and one end of each pushing block is provided with anti-skid patterns.

Preferably, the first hinge plate is made of metal iron, and the second hinge plate is mutually matched with the first hinge plate.

Compared with the prior art, the invention provides a knob-type astigmatism corrector, which has the following beneficial effects:

1. according to the invention, through the mutual hinging between the second hinging plate and the first hinging plate, the handle and the fixed sleeve can rotate at random angles, the fixed rack and the fixed gear are mutually separated, at the moment, the fixed gear is released from fixation, the fixed sleeve can be driven to rotate through the internal rotation of the second hinging plate in the first hinging plate, so that the angle between the fixed sleeve and the handle is changed, a doctor can adjust to the optimal angle through the correcting device, the doctor can feel more comfortable and more convenient during use, and the burden of operation is reduced.

2. The invention uses the transmission between the rotating shaft and the driving gear to drive the first driving gear to rotate, the first driving gear drives the annular racks meshed with the first driving gear to rotate, the scale groove is driven to rotate in the dial, and the angle measurement is carried out.

3. According to the invention, when the second hinge plate and the first hinge plate are designed to be detachable, the two groups of limiting sleeves are moved out of the outer side of the connecting shaft, at the moment, the connecting shaft can be taken out of the mounting slot, at the moment, the second hinge plate can be taken out of the first hinge plate, the disassembly between the handle and the fixing sleeve is completed, when the parts are damaged, at the moment, a certain part of the parts can be replaced, the number of the replaced parts is reduced, and the purposes of saving resources and medical cost are achieved.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A in accordance with the present invention;

FIG. 3 is a front cross-sectional view of the connection mechanism of the present invention;

FIG. 4 is a front view of the connecting mechanism of the present invention;

FIG. 5 is a schematic view of a connecting mechanism according to the present invention;

FIG. 6 is a top cross-sectional view of a second hinge plate of the present invention;

FIG. 7 is an enlarged view of FIG. 6B in accordance with the present invention;

fig. 8 is a top view of the dial of the present invention.

In the figure: 1. a handle; 2. a connecting mechanism; 201. a first hinge plate; 202. sliding through grooves; 203. a return spring; 204. a slide bar; 205. a fixed rack; 206. a limit sleeve; 207. installing a slot; 208. a magnet; 3. a rotation measurement mechanism; 301. a dial; 302. a support ring; 303. a roller; 304. an annular rack; 305. a rotating head; 306. a scale groove; 307. a first transmission gear; 4. a second hinge plate; 5. a fixed sleeve; 6. a rotating shaft; 7. a drive gear; 8. a fixed gear; 9. a connecting shaft; 10. stirring the gear; 11. and a second transmission gear.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-8, the present invention provides the following technical solutions: the utility model provides a knob formula astigmatism and look ware, includes handle (1), handle 1, the top of handle 1 is provided with coupling mechanism 2, coupling mechanism 2's inside cover is equipped with connecting axle 9, the fixed second hinge plate 4 that is provided with in top and the bottom in the connecting axle 9 outside, intermediate position department in the connecting axle 9 outside is provided with fixed gear 8, the top of second hinge plate 4 is provided with fixed sleeve 5, the bottom rotation of fixed sleeve 5 one side is provided with stirs gear 10, the inside top rotation of fixed sleeve 5 is provided with pivot 6, the top and the bottom of pivot 6 are provided with drive gear 7 and second drive gear 11 respectively, one side of fixed sleeve 5 is provided with rotation measuring mechanism 3.

As a preferable scheme of the present embodiment: the connecting mechanism 2 comprises a first hinge plate 201, a sliding through groove 202, a return spring 203, a sliding rod 204, a fixed rack 205, a limit sleeve 206, mounting slots 207 and magnets 208, wherein the first hinge plate 201 is positioned at the top of the handle 1, the sliding through groove 202 is formed in two ends of the first hinge plate 201, the sliding through grooves 202 are arranged in the sliding through grooves 202 in a sliding manner, the sliding rod 204 is arranged at the top of the sliding rod 204, the fixed rack 205 is arranged at two sides of the bottom of the fixed rack 205, the return spring 203 is arranged at two ends of the top of the first hinge plate 201, the mounting slots 207 are formed in the two ends of the first hinge plate 201 in a sliding manner, the limit sleeve 206 is arranged at the edge of the bottom of the limit sleeve 206, and the angle of the corrector can be conveniently adjusted and quickly detached.

As a preferable scheme of the present embodiment: the rotation measuring mechanism 3 comprises a dial 301, a supporting ring 302, rollers 303, annular racks 304, a rotating head 305, scale grooves 306 and a first transmission gear 307, wherein the dial 301 is located at the top of one side of the fixed sleeve 5, the supporting ring 302 is arranged at the bottom of the inner side of the dial 301, four groups of rollers 303 are arranged at the edge of the top of the supporting ring 302, the rotating head 305 is sleeved inside the dial 301, the annular racks 304 are arranged at the top of the outer side of the rotating head 305, the scale grooves 306 are arranged at the two ends of the top of the dial 301, the first transmission gear 307 is rotatably arranged at the middle position of one side of the dial 301, and eye measurement of a patient can be performed.

As a preferable scheme of the present embodiment: the connecting shaft 9 is located in the mounting slot 207, and two sets of limiting sleeves 206 are sleeved on the outer side of the connecting shaft 9, so that the connecting shaft 9 can be quickly connected.

As a preferable scheme of the present embodiment: limiting telescopic rods are arranged on two sides of the limiting sleeve 206, and located inside the first hinge plate 201 to slide, so that the limiting sleeve 206 is prevented from falling.

As a preferable scheme of the present embodiment: the toggle gear 10 is meshed with the second transmission gear 11, the driving gear 7 is meshed with the first transmission gear 307, and the rotating head 305 is driven to rotate through transmission.

As a preferable scheme of the present embodiment: the fixed rack 205 is positioned inside the first hinge plate 201, and the fixed rack 205 and the fixed gear 8 are meshed with each other to quickly fix the fixed sleeve 5.

As a preferable scheme of the present embodiment: one side of the return spring 203 is fixedly connected with the inside of the first hinge plate 201, and the slide bar 204 is located between the two sets of return springs 203.

As a preferable scheme of the present embodiment: both ends of the sliding rod 204 are provided with pushing blocks, and one end of each pushing block is provided with anti-skidding patterns, so that the sliding rod 204 is pushed more comfortably and conveniently.

As a preferable scheme of the present embodiment: the first hinge plate 201 is made of metal iron, and the second hinge plate 4 is matched with the first hinge plate 201.

In embodiment 1, as shown in fig. 3-7, the pushing block drives the sliding rod 204 to move in the sliding through groove 202, drives the fixed rack 205 and the fixed gear 8 to move away from each other, and releases the fixing effect on the fixed gear 8, at this time, the fixed sleeve 5 can be pushed to rotate around the connecting shaft 9 by a certain angle, when the fixed sleeve 5 rotates to a proper angle, two groups of pushing blocks are released, and under the elasticity of two groups of restoring springs 203, the sliding rod 204 and the fixed rack 205 are restored, so that the fixed rack 205 and the fixed gear 8 are meshed again, at this time, the fixed gear 8 is fixed by the fixed rack 205, so that the second hinge plate 4 cannot rotate through the connecting shaft 9, and the angle between the handle 1 and the fixed sleeve 5 can be adjusted, so that the corrector provides an optimal comfortable state for doctors.

In embodiment 2, as shown in fig. 3-7, after the appliance is used for a period of time, the parts inside the appliance are damaged due to fatigue, the parts need to be replaced, the two sets of limiting sleeves 206 are pulled away from each other, the two sets of limiting sleeves 206 are away from the outer side of the connecting shaft 9, the connecting shaft 9 is released from limiting and fixing, the fixing sleeve 5 can be pulled away from the handle 1, the connecting shaft 9 is driven to be taken out of the mounting slot 207, the second hinge plate 4 is taken out of the first hinge plate 201, the disassembly of the handle 1 and the fixing sleeve 5 is completed, the corresponding damaged parts can be replaced at this time, the waste of resources caused by overall replacement is reduced, during installation, the two sets of limiting sleeves 206 are pulled furthest, the connecting shaft 9 is aligned to the mounting slot 207, the limiting sleeves 206 are released, the magnets 208 are attracted with the first hinge plate 201, the limiting sleeves 206 are fixed, the connecting shaft 9 cannot move along the inside of the mounting slot 207, and meanwhile, the second hinge plate 4 is matched with the first hinge plate 201, and the second hinge plate 4 cannot be in the first hinge plate 201.

Working principle: when the correcting device is used, certain adjustment is needed for the correcting device, the optimal comfort level is achieved when a doctor uses the correcting device, at the moment, the pushing block drives the sliding rod 204 to move in the sliding through groove 202, the fixed rack 205 and the fixed gear 8 are driven to be far away from each other, the fixing effect on the fixed gear 8 is relieved, at the moment, the fixed sleeve 5 can be pushed to rotate around the connecting shaft 9 by a certain angle, when the fixed sleeve 5 rotates to a proper angle, at the moment, two groups of pushing blocks are released, the sliding rod 204 and the fixed rack 205 are restored under the elastic force of the two groups of restoring springs 203, the fixed rack 205 and the fixed gear 8 are meshed again, at the moment, the fixed gear 8 is fixed by the fixed rack 205, the second hinge plate 4 cannot rotate through the connecting shaft 9, the angles of the handle 1 and the fixed sleeve 5 can be adjusted, and the correcting device can provide the optimal comfort state for the doctor to use.

When the eye of a patient is measured through the corrector, at the moment, the thumb of a doctor contacts with the stirring gear 10 and drives the stirring gear 10 to rotate, the stirring gear 10 drives the second transmission gear 11 meshed with the stirring gear 10 to rotate, the second transmission gear 11 drives the rotating shaft 6 to rotate, the second transmission gear 11 drives the driving gear 7 to rotate, the driving gear 7 drives the annular rack 304 to rotate through the transmission of the first transmission gear 307, at the moment, the rotating head 305 rotates along with the rotating head, the scale groove 306 is driven to rotate and measure, and only one hand is needed to operate, so that the eye of the patient can be measured through the corrector, the efficiency is greatly improved, the operation time of the doctor is saved, and the operation is more convenient.

Finally, it should be noted that the above description is only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and that the simple modification and equivalent substitution of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. Knob formula astigmatism appliance, including handle (1), its characterized in that: handle (1), the top of handle (1) is provided with coupling mechanism (2), coupling mechanism (2)'s inside cover is equipped with connecting axle (9), the fixed second hinge plate (4) that is provided with in top and the bottom in connecting axle (9) outside, intermediate position department in the connecting axle (9) outside is provided with fixed gear (8), the top of second hinge plate (4) is provided with fixed sleeve (5), the bottom rotation of fixed sleeve (5) one side is provided with toggle gear (10), the inside top rotation of fixed sleeve (5) is provided with pivot (6), the top and the bottom of pivot (6) are provided with drive gear (7) and second drive gear (11) respectively, one side of fixed sleeve (5) is provided with rotation measurement mechanism (3).

2. The knob-type astigmatism corrector according to claim 1, wherein: coupling mechanism (2) are including first articulated slab (201), slip logical groove (202), reset spring (203), slide bar (204), fixed rack (205), stop collar (206), installation slot (207) and magnet (208), the top that is located handle (1) of first articulated slab (201), slip logical groove (202) have been seted up at the both ends of first articulated slab (201), two sets of slip logical groove (202) inside slip is provided with slide bar (204), the top of slide bar (204) is provided with fixed rack (205), the both sides of fixed rack (205) bottom are provided with reset spring (203), installation slot (207) have been seted up at the both ends at first articulated slab (201) top, the top slip at first articulated slab (201) both ends is provided with stop collar (206), the edge of stop collar (206) bottom is provided with magnet (208).

3. The knob-type astigmatism corrector according to claim 1, wherein: the rotary measuring mechanism (3) comprises a dial (301), a supporting ring (302), rollers (303), an annular rack (304), rotating heads (305), scale grooves (306) and a first transmission gear (307), wherein the dial (301) is located at the top of one side of a fixed sleeve (5), the supporting ring (302) is arranged at the bottom of the inner side of the dial (301), four groups of rollers (303) are arranged at the edge of the top of the supporting ring (302), the rotating heads (305) are sleeved on the inner side of the dial (301), the annular racks (304) are arranged at the top of the outer side of the rotating heads (305), the scale grooves (306) are formed at the two ends of the top of the dial (301), and the first transmission gear (307) is rotatably arranged at the middle position of one side of the dial (301).

4. The knob-type astigmatism corrector according to claim 2, wherein: the connecting shaft (9) is positioned in the mounting slot (207), and the two groups of limiting sleeves (206) are sleeved on the outer side of the connecting shaft (9).

5. The knob-type astigmatism corrector according to claim 2, wherein: limiting telescopic rods are arranged on two sides of the limiting sleeve (206), and the limiting telescopic rods are located in the first hinge plate (201) to slide.

6. The knob-type astigmatism corrector according to claim 1, wherein: the toggle gear (10) is meshed with the second transmission gear (11), and the driving gear (7) is meshed with the first transmission gear (307).

7. The knob-type astigmatism corrector according to claim 2, wherein: the fixed rack (205) is positioned inside the first hinge plate (201), and the fixed rack (205) is meshed with the fixed gear (8).

8. The knob-type astigmatism corrector according to claim 2, wherein: one side of the return spring (203) is fixedly connected with the inside of the first hinge plate (201), and the sliding rod (204) is positioned between the two groups of return springs (203).

9. The knob-type astigmatism corrector according to claim 2, wherein: both ends of the sliding rod (204) are provided with pushing blocks, and one end of each pushing block is provided with anti-skid patterns.

10. The knob-type astigmatism corrector according to claim 2, wherein: the first hinge plate (201) is made of metal iron, and the second hinge plate (4) and the first hinge plate (201) are mutually matched.