CN113796823B - Ophthalmic fundus examination device - Google Patents
Ophthalmic fundus examination device Download PDFInfo
- Publication number
- CN113796823B CN113796823B CN202111273272.5A CN202111273272A CN113796823B CN 113796823 B CN113796823 B CN 113796823B CN 202111273272 A CN202111273272 A CN 202111273272A CN 113796823 B CN113796823 B CN 113796823B
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- observation hole
- head
- fixed table
- communicated
- shaped fixed
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/102—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for optical coherence tomography [OCT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
- A61B3/1225—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes using coherent radiation
Abstract
The invention provides an ophthalmic fundus examination device, which comprises a base, wherein a movable plate is movably arranged on the base, a protective cover body is fixedly arranged on the movable plate, a T-shaped fixed table is fixedly arranged in a mounting hole, a lifting rod is movably inserted in the T-shaped fixed table, a head rest is fixedly arranged on the upper part of the lifting rod, a plurality of telescopic cylinders are annularly arranged on the outer side of the hydraulic cylinder pushing ring in an array manner, and telescopic pistons are movably inserted in the telescopic cylinders, and an L-shaped connecting rod is fixedly arranged at one end of each telescopic piston far away from a hydraulic through hole.
Description
Technical Field
The invention relates to the technical field of medical OCT fundus inspection devices, in particular to an ophthalmic fundus inspection device.
Background
Optical Coherence Tomography (OCT) is a high-resolution biomedical imaging means developed in recent years, and based on the principle of optical interference, the Optical Coherence Tomography (OCT) can be used for performing tomography by measuring the back-scattered light intensity and the phase of biological tissues to obtain the internal structure of the biological tissues, so that non-contact and non-invasive biological tissue biopsy can be realized, and the OCT is directly used for biological tissue imaging, is mainly used for early examination of ophthalmic diseases, and becomes a research hot spot and development direction of modern medical electronic instruments;
an apparatus for observing an eye in the prior art, having application number "CN200880016048.4", comprises an imaging device provided with a magnification unit and an observation unit, the magnification unit having an objective lens for receiving observation light from the eye, the apparatus comprising an OCT system comprising an OCT light source for emitting OCT light, and beam splitting means for splitting the OCT light into a reference beam and a sample beam, the OCT system comprising transmission means for guiding the sample beam from the beam splitting means to the eye via the objective lens, the OCT system comprising an OCT module detachably connected between the magnification unit and the observation unit.
However, the above eye-observing device still has obvious defects in the use process: 1. the device is arranged in a naked mode, and because the optical coherence tomography component is a precise component, the lens of the optical coherence tomography component is exposed in the air for a long time and is easily affected by dust adhesion, so that the OCT equipment in the prior art needs to be dustproof when in idle, and the operation is easily affected by the manual work to cause improper dust prevention and further cause the phenomena of instrument damage and the like; 2. the prior OCT always needs the eyeball stability of a patient in the checking process, thereby ensuring the accuracy of a measuring result, and facing the patient with the eyeball rotation incapable of being stabilized, the fixation of the eyeball needs to be carried out by utilizing the fixation lamp in an auxiliary way, the fixation lamp in the prior art has a structure capable of bending and deforming at will, the adjusting process is more complicated, and the adjusting process is more difficult.
Disclosure of Invention
The present invention is directed to an ophthalmic fundus examination device that solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an ophthalmic fundus examination device comprises a base, wherein a movable plate is movably arranged on the base, a protective cover body is fixedly arranged on the movable plate, an OCT body is arranged in the protective cover body, and an observation hole for an OCT lens to go in and out is formed in one side of the protective cover body;
the base is located one side of the observation hole and is fixedly provided with a head positioning frame, the bottom of the head positioning frame is penetrated and provided with a mounting hole, a T-shaped fixing table is fixedly installed in the mounting hole, a lifting rod is movably inserted into the T-shaped fixing table, the upper part of the lifting rod is fixedly provided with a head support, one side of the lifting rod, far away from the head support, is fixedly provided with a piston, the piston is movably arranged in the T-shaped fixing table, the head support is connected with the T-shaped fixing table through a spring air bag, the base is provided with a liquid channel communicated with the bottom of the T-shaped fixing table, one end, far away from the T-shaped fixing table, of the liquid channel is communicated with the liquid channel in the protective cover body through a flexible pipe, the outer side of the observation hole is provided with a mounting groove, and an observation hole sealing device is fixedly installed in the mounting groove;
the observation hole closing device comprises a hydraulic cylinder pushing ring, a plurality of telescopic cylinders are installed on the outer side of the hydraulic cylinder pushing ring in an annular array mode, hydraulic through holes communicated with the bottoms of the telescopic cylinders are formed in the hydraulic cylinder pushing ring, telescopic pistons are movably inserted in the telescopic cylinders, one end of each telescopic piston, far away from each hydraulic through hole, is fixedly provided with an L-shaped connecting rod, each L-shaped connecting rod is fixedly provided with an observation hole closing plate, a plurality of the observation hole closing plates are spliced to form a disc-shaped shielding area for closing and shielding the observation holes, liquid inlets communicated with liquid channels in the protective cover are formed in the hydraulic pushing ring, and a plurality of the observation hole closing plates are provided with fixation lamps.
Preferably, the spring air bags are respectively arranged at two sides of the T-shaped fixed table.
Preferably, the air inlet channel communicated with the bottom of the spring air bag is arranged on the T-shaped fixing table on two sides, one side of the air inlet channel away from the spring air bag is communicated with the air channel arranged in the head positioning frame, two sides of the air channel are communicated with the extrusion air bag connected with the inner side of the head fixing frame respectively at one end of the air channel away from the T-shaped fixing table, and one end of the extrusion air bag away from the head fixing frame on two sides of the air channel is connected with the head positioning plate.
Preferably, the head positioning plates on two sides are fixedly provided with limiting rods, and the limiting rods are movably inserted into through holes formed in the head positioning plates.
Preferably, a limit ring is fixedly arranged in the T-shaped fixed table, and the lifting rod is movably inserted into the limit ring.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the OCT equipment is protected through the cover body, when a patient enters the observation table, the lens is automatically opened, and the patient is automatically closed after the examination is finished, so that the protection efficiency of the OCT equipment and the lens is greatly improved, the service life is prolonged, and meanwhile, the definition of fundus examination is ensured;
2. the shielding sheet not only can shield the OCT lens, but also is provided with the fixation lamps which are radially arranged along the lens, so that the eyeballs are fixed during eyeground examination of a patient, and the accuracy of an examination result is ensured.
According to the invention, the OCT equipment is protected through the cover body, when a patient enters the observation table, the lens is automatically opened, and the patient is automatically closed after the examination is finished, so that the protection efficiency of the OCT equipment and the lens is greatly improved, and meanwhile, the shielding sheet not only can shield the OCT lens, but also can fix eyeballs during the fundus examination of the patient, and the accuracy of an examination result is ensured.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a schematic view showing the closed state of the porthole closing plate of the present invention;
FIG. 3 is a schematic view showing the open state of the porthole closing plate of the present invention;
FIG. 4 is an enlarged view of the area A of the present invention;
FIG. 5 is a schematic view of the overall structure of the observation hole closing apparatus of the present invention;
fig. 6 is a schematic view of the telescopic cylinder connection structure of the present invention.
In the figure: 1 base, 2 movable plate, 3 protective cover body, 4OCT lens, 5 observation hole, 6 head locating rack, 7 mounting hole, 8T fixed station, 9 lifter, 10 head rest, 11 piston, 12 spring gasbag, 13 liquid passageway, 14 flexible pipe, 15 mounting groove, 16 observation hole closing device, 17 pneumatic cylinder push ring, 18 telescopic cylinder, 19 hydraulic pressure through hole, 20 telescopic piston, 21L connecting rod, 22 observation hole closing plate, 23 feed liquor hole, 24 fixation lamp, 25 intake duct, 26 air flue, 27 extrusion gasbag, 28 head locating plate, 29 gag lever post, 30 spacing collar.
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.
Examples:
referring to fig. 1-6, the present invention provides a technical solution:
an ophthalmic fundus examination device comprises a base 1, wherein a movable plate 2 is movably arranged on the base 1, a protective cover body 3 is fixedly arranged on the movable plate 2, an OCT body is arranged in the protective cover body 3, and an observation hole 5 for an OCT lens 4 to go in and out is formed in one side of the protective cover body 3;
the OCT lens 4 of the invention protrudes out through the observation hole 5 in the working state and retracts into the protective cover body 3 in the standing state, the movable plate 2 adjusts the position of the OCT lens 4 through moving on the base 1, and then the OCT lens 4 is guaranteed to reach the optimal observation position;
the base 1 is fixedly provided with a head positioning frame 6 at one side of the observation hole 5, the bottom of the head positioning frame 6 is penetrated and provided with a mounting hole 7, a T-shaped fixed table 8,T type fixed table 8 is movably inserted in the mounting hole 7, a head support 10 is fixedly arranged at the upper part of the lifting rod 9, a piston 11 is fixedly arranged at one side of the lifting rod 9 far away from the head support 10, the piston 11 is movably arranged in the T-shaped fixed table 8, the head support 10 is connected with the T-shaped fixed table 8 through a spring air bag 12, the base 1 is provided with a liquid channel 13 communicated with the bottom of the T-shaped fixed table 8, one end of the liquid channel 13 far away from the T-shaped fixed table 8 is communicated with the liquid channel 13 in the protective cover body 3 through a flexible pipe 14, the outer side of the observation hole 5 is provided with a mounting groove 15, and an observation hole sealing device 16 is fixedly arranged in the mounting groove 15;
when a patient needs to carry out fundus examination, placing a chin on the head rest 10, and utilizing the weight of the head to downwards press the head rest 10 together with the lifting rod 9 and the piston 11, so that hydraulic oil filled at the bottom of the T-shaped fixed table 8 is finally conveyed into the observation hole sealing device 16 through the flexible pipe 14 through the liquid channel 13 of the base 1, thereby controlling the opening and closing of the observation hole sealing device 16, and by adopting the mode, the automatic opening and closing of the observation hole 5 is realized, and the spring air bag 12 is used for pushing the head rest 10 to the side far away from the T-shaped fixed table 8 under the action of no external force, so that the lifting rod 9 and the piston 11 are promoted to reset;
the observation hole sealing device 16 comprises a hydraulic cylinder pushing ring 17, a plurality of telescopic cylinders 18 are annularly arranged on the outer side of the hydraulic cylinder pushing ring 17 in an array mode, hydraulic through holes 19 communicated with the bottoms of the telescopic cylinders 18 are formed in the hydraulic cylinder pushing ring 17, telescopic pistons 20 are movably inserted into the telescopic cylinders 18, one ends, far away from the hydraulic through holes 19, of the telescopic pistons 20 are fixedly provided with L-shaped connecting rods 21, the L-shaped connecting rods 21 are fixedly provided with observation hole sealing plates 22, the plurality of observation hole sealing plates 22 are spliced to form a disc-shaped shielding area for sealing and shielding the observation holes 5, liquid inlet holes 23 communicated with liquid channels 13 in the protective cover body 3 are formed in the hydraulic pushing ring 17, and the plurality of observation hole sealing plates 22 are provided with fixation lamps 24;
in the process that the head support 10, the lifting rod 9 and the piston 11 are downwards pressed by the weight of the head, hydraulic oil enters the hydraulic cylinder pushing ring 17 through the liquid channel 13 formed in the protective cover body 3 and enters the telescopic cylinder 18 through the hydraulic through hole 19, the hydraulic oil pushes the telescopic piston 20 in the telescopic cylinder 18 to move towards the side far away from the hydraulic through hole 19, the observation hole sealing plate 22 is driven to move outwards, the sealed observation hole 5 is opened, after fundus examination is completed, the observation hole sealing plate 22 is mutually folded to shield the observation hole 5, when fundus examination is carried out on a patient, the OCT lens 4 protrudes out through the observation hole 5, and the fixation lamp 24 arranged on the observation hole sealing plate 22 can guide an inspector to carry out eyeball positioning in different directions, so that accuracy of examination results is ensured.
Preferably, the spring air bags 12 are respectively arranged at two sides of the T-shaped fixed table 8.
As a preference, the T-shaped fixing table 8 on two sides is provided with an air inlet 25 communicated with the bottom of the spring air bag 12, one side, away from the spring air bag 12, of the air inlet 25 is communicated with an air passage 26 arranged in the head positioning frame 6, one end, away from the T-shaped fixing table 8, of the air passages 26 on two sides is respectively communicated with an extrusion air bag 27 connected with the inner side of the head positioning frame 6, one end, away from the head positioning frame 6, of the extrusion air bag 27 on two sides is connected with the head positioning plate 28, in the compression process of the extrusion air bag 27, air enters the extrusion air bag 27 through the air passage 25 through the air passage 26, and the expansion of the extrusion air bag 27 drives the head positioning plate 28 to clamp and fix two sides of the head, so that the stability of the head in the fundus examination process is further improved.
As a preferred option, the head positioning plates 28 on both sides are also fixedly provided with a limiting rod 29, the limiting rods 29 are movably inserted into through holes formed in the head positioning plates 28, and the head positioning plates 28 cannot deviate due to limiting arrangement of the limiting rods 29.
As a preferable mode, a limit ring 30 is fixedly installed in the T-shaped fixing table 8, the lifting rod 9 is movably inserted into the limit ring 30, and excessive lifting of the lifting rod 9 is limited by the limit ring 30, so that the lifting rod 9 is prevented from being separated from the T-shaped fixing table 8.
Working principle: when the fundus examination is needed, the head of the patient enters the space formed by the head positioning frame 6 and props the chin against the head support 10, at the moment, under the action of the gravity of the head, the head support 10, the lifting rod 9 and the piston 11 downwards press, so that the hydraulic oil filled at the bottom of the T-shaped fixing table 8 is finally conveyed into the hydraulic cylinder pushing ring 17 through the flexible pipe 14 through the liquid channel 13 of the base 1, the hydraulic oil enters the telescopic cylinder 18 through the hydraulic through hole 19, the hydraulic oil pushes the telescopic piston 20 in the telescopic cylinder 18 to move towards the side far from the hydraulic through hole 19, the observation hole sealing plate 22 is further driven to move outwards, so that the sealed observation hole 5 is opened, at the moment, the OCT lens 4 is detected out of the observation hole 5 by pushing the OCT body towards the side close to the observation hole 5, therefore, the eyeground of a patient is inspected, the head rest 10 descends to drive the spring air bag 12 to shrink synchronously, at the moment, air enters the extrusion air bag 27 through the air inlet channel 25 and the air channel 26 to fix the two sides of the head, in addition, in the eyeground inspection process of the patient, the constant of the fixation lamp 24 in different areas on the observation hole sealing plate 22 is controlled, so that the eyeground position of the patient is guided to be changed, the eyeball positioning of the patient is effectively carried out, the accuracy of the inspection result is convenient, after the inspection is finished, the OCT body and the OCT lens 4 are pushed to enter the protective cover body 3, at the moment, the head of the patient is separated from the head rest 10, under the action of the restoring force of the spring air bag 12, the observation hole sealing plate 22 is closed to seal the observation hole 5, and the head positioning plate 28 is reset, so that the eyeground inspection process is finished.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An ophthalmic fundus examination device comprising a base (1), characterized in that: a movable plate (2) is movably arranged on the base (1), a protective cover body (3) is fixedly arranged on the movable plate (2), an OCT body is arranged in the protective cover body (3), and an observation hole (5) for an OCT lens (4) to come in and go out is formed in one side of the protective cover body (3);
the base (1) is located one side of the observation hole (5) and is fixedly provided with a head positioning frame (6), the bottom of the head positioning frame (6) is penetrated and provided with a mounting hole (7), a T-shaped fixed table (8) is fixedly arranged in the mounting hole (7), a lifting rod (9) is movably inserted in the T-shaped fixed table (8), the upper part of the lifting rod (9) is fixedly provided with a head support (10), one side of the lifting rod (9) away from the head support (10) is fixedly provided with a piston (11), the piston (11) is movably arranged in the T-shaped fixed table (8), the head support (10) is connected with the T-shaped fixed table (8) through a spring air bag (12), the base (1) is provided with a liquid channel (13) communicated with the bottom of the T-shaped fixed table (8), one end of the liquid channel (13) is far away from the T-shaped fixed table (8) and is communicated with the liquid channel (13) in the protective cover body (3) through a flexible pipe (14), the outer side of the observation hole (5) is provided with a mounting groove (15), and the inner side of the observation hole (15) is fixedly provided with a sealing device;
the observation hole closing device (16) comprises a hydraulic cylinder pushing ring (17), a plurality of telescopic cylinders (18) are installed on the outer side of the hydraulic cylinder pushing ring (17) in an annular array mode, hydraulic through holes (19) communicated with the bottoms of the telescopic cylinders (18) are formed in the hydraulic cylinder pushing ring (17), telescopic pistons (20) are movably inserted in the telescopic cylinders (18), one end of each telescopic piston (20) away from each hydraulic through hole (19) is fixedly provided with an L-shaped connecting rod (21), each L-shaped connecting rod (21) is fixedly provided with an observation hole closing plate (22), a plurality of disc-shaped shielding areas are formed by splicing the observation hole closing plates (22) and used for sealing and shielding the observation holes (5), liquid inlet holes (23) communicated with liquid channels (13) in the protective cover body (3) are formed in the hydraulic cylinder pushing ring (17), and a plurality of observation hole closing plates (22) are provided with fixation lamps (24).
2. An ophthalmic fundus inspection apparatus according to claim 1, wherein: the spring air bags (12) are respectively arranged at two sides of the T-shaped fixed table (8).
3. An ophthalmic fundus inspection apparatus according to claim 2, wherein: air inlet channels (25) communicated with the bottoms of the spring air bags (12) are formed in the T-shaped fixing tables (8) on two sides, one side, away from the spring air bags (12), of each air inlet channel (25) is communicated with an air channel (26) formed in the head locating frame (6), two sides, away from the air channels (26), of each T-shaped fixing table (8), one end of each air channel (26) is respectively communicated with an extrusion air bag (27) connected with the inner side of the head locating frame (6), and one end, away from the head locating frame (6), of each extrusion air bag (27) on two sides is connected with a head locating plate (28).
4. An ophthalmic fundus inspection apparatus according to claim 3, wherein: and the head positioning plates (28) on two sides are also fixedly provided with limiting rods (29), and the limiting rods (29) are movably inserted into through holes formed in the head positioning plates (28).
5. An ophthalmic fundus inspection apparatus according to claim 1, wherein: the T-shaped fixed table (8) is internally and fixedly provided with a limit ring (30), and the lifting rod (9) is movably inserted into the limit ring (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273272.5A CN113796823B (en) | 2021-10-29 | 2021-10-29 | Ophthalmic fundus examination device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273272.5A CN113796823B (en) | 2021-10-29 | 2021-10-29 | Ophthalmic fundus examination device |
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| CN113796823A CN113796823A (en) | 2021-12-17 |
| CN113796823B true CN113796823B (en) | 2023-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111273272.5A Active CN113796823B (en) | 2021-10-29 | 2021-10-29 | Ophthalmic fundus examination device |
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| CN117233196B (en) * | 2023-11-16 | 2024-04-16 | 山东恒川越新材料科技有限公司 | Thermal-insulated extruded sheet capability test device keeps warm |
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| CN212307810U (en) * | 2020-03-30 | 2021-01-08 | 王龙风 | Be used for ophthalmology eye ground inspection equipment |
| CN113229778A (en) * | 2021-05-14 | 2021-08-10 | 李钢锋 | Convenient to use's dustproof cover that presss from both sides of ophthalmology ophthalmoscope |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4527248B2 (en) * | 2000-07-07 | 2010-08-18 | 興和株式会社 | Ophthalmic diagnostic equipment |
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| JP2000107128A (en) * | 1998-10-08 | 2000-04-18 | Koonan:Kk | Ophthalmic device, and opening/closing means for its opening |
| JP2014083193A (en) * | 2012-10-23 | 2014-05-12 | Konan Medical Inc | Ophthalmic examination apparatus |
| CN211658119U (en) * | 2018-07-08 | 2020-10-13 | 上饶爱尔眼科医院有限公司 | Multifunctional medical ophthalmology disease inspection tester |
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| CN113796823A (en) | 2021-12-17 |
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