CN215534672U - Convenient-to-use eyelid retractor for ophthalmology - Google Patents
Convenient-to-use eyelid retractor for ophthalmology Download PDFInfo
- Publication number
- CN215534672U CN215534672U CN202121575694.3U CN202121575694U CN215534672U CN 215534672 U CN215534672 U CN 215534672U CN 202121575694 U CN202121575694 U CN 202121575694U CN 215534672 U CN215534672 U CN 215534672U
- Authority
- CN
- China
- Prior art keywords
- arc
- ophthalmology
- sets
- convenient
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000000744 eyelid Anatomy 0.000 title claims abstract description 29
- 229920001971 elastomer Polymers 0.000 claims abstract description 5
- 239000012634 fragment Substances 0.000 claims description 25
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000003128 head Anatomy 0.000 abstract description 15
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 210000001508 eye Anatomy 0.000 description 6
- 229920001821 foam rubber Polymers 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 208000002177 Cataract Diseases 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000474 nursing effect Effects 0.000 description 2
- 208000010412 Glaucoma Diseases 0.000 description 1
- 206010061323 Optic neuropathy Diseases 0.000 description 1
- 208000017442 Retinal disease Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000020911 optic nerve disease Diseases 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 201000010041 presbyopia Diseases 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 210000004127 vitreous body Anatomy 0.000 description 1
- 208000005494 xerophthalmia Diseases 0.000 description 1
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a convenient-to-use eyelid retractor for ophthalmology, which comprises an arc-shaped fixing frame, arc-shaped elastic sheets are respectively penetrated at two ends of the arc-shaped fixing frame, a guide slide block and an elastic sheet latch are respectively arranged at the upper end and the lower end of one end of each arc-shaped elastic sheet, a guide slide groove is arranged at the upper end of each arc-shaped fixing frame, a plurality of groups of positioning tooth grooves are uniformly arranged at the lower end of the inner side of each arc-shaped fixing frame, the guide slide blocks are clamped in the guide slide grooves, the elastic sheet latches are clamped in the positioning tooth grooves, an adjusting assembly is arranged at the other end of each arc-shaped elastic sheet, two groups of supporting assemblies are arranged in the adjusting assembly, the device is worn on the head of a patient through the matching of the arc-shaped fixing frame and the arc-shaped elastic sheets, the device is convenient to adjust according to the size of the head of the patient, the eyelid of the patient is convenient to use, the two groups of poking sheets are moved away from each other through rotating a two-way screw rod, the control force is convenient, and the two-way screw rod is matched with a screw hole to have self-locking property, after being adjusted, the rubber belt is not easy to loosen and is convenient to position.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a convenient-to-use eyelid retractor for ophthalmology.
Background
In general, many ophthalmic diseases such as vitreous body, retinal diseases, optic vision, glaucoma and optic neuropathy, cataract, etc. are studied in ophthalmology, and the common ophthalmic diseases include: xerophthalmia, cataract, presbyopia and the like, the eyelid retractor is often used in ophthalmologic examination or operation, and is mainly used for widening the operation visual field of doctors, so that the doctors can better perform operation.
For example, application No.: 2020202558390 discloses an eye face distraction device for ophthalmic care, which comprises a handle, one side of handle is equipped with two chucks, the equal fixedly connected with stationary blade in one side that two chucks are close to each other, the curved board of dialling of rear side fixedly connected with of stationary blade, two are curved to dial the board symmetry and set up, the connecting rod that the lopsidedness of handle set up, be provided with the circle axle in the rectangular channel, the connecting rod cover is established on the circle axle, be provided with the square pole in the rectangular channel, the cover is equipped with the removal seat on the square pole, it has the dwang that two slopes set up to remove one side that the seat is close to the circle axle articulates, the dwang is close to one side of the connecting rod that corresponds and articulates mutually with the connecting rod, it is provided with the spring to remove seat one side, the spring housing is established on the square pole, the below of handle is provided with the arc finger and draws the piece.
The eye and face distraction device for ophthalmic care has the following defects:
1. this ophthalmology nursing is with eye face distraction device does not set up fixing device, needs medical personnel to hold with the hand and operate when using, uses inconveniently.
2. This ophthalmology nursing is with eyelid distraction device draws piece drive rectangular bar rebound through pressing down arc finger, drives two bendings under the extrusion force and dials the board separately to prop open eyelid and lower eyelid on the patient, the inconvenient control of this kind of mode struts the dynamics of patient's eyelid, and does not carry on spacingly after strutting.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a convenient-to-use eyelid retractor for ophthalmology, which can effectively solve the problems.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides a be used for ophthalmology convenient to use type eye speculum, eye speculum includes the arc mount, arc shell fragment is worn to be equipped with respectively at the both ends of arc mount, the upper end and the lower extreme of arc shell fragment one end are provided with direction slider and shell fragment latch respectively, the direction spout has been seted up to the upper end of arc mount, multiunit location tooth's socket has evenly been seted up to the inboard lower extreme of arc mount, the direction slider card is established in the direction spout, the shell fragment latch card is established in the location tooth's socket, the other end of arc shell fragment is provided with adjusting part, be provided with two sets of supporting components in the adjusting part.
Further, the inboard of arc mount is provided with the foam-rubber cushion, the foam-rubber cushion with the arc mount is the bonding, through setting up the travelling comfort that the patient wore can be improved to the foam-rubber cushion, and is convenient for change the foam-rubber cushion.
Further, two sets of arc-shaped elastic pieces are respectively provided with heat dissipation holes, the heat dissipation holes are evenly provided with a plurality of groups, the inner sides of the arc-shaped elastic pieces are provided with fixing frames, and anti-skidding rubber pads are clamped in the fixing frames.
Further, the adjusting part comprises a mounting rack, the mounting rack is connected with one end of the arc-shaped elastic piece through a fastening bolt, two sets of mounting grooves are evenly formed in the mounting rack, two sets of connecting blocks are arranged in the mounting grooves respectively, threaded holes are formed in the connecting blocks, two sets of two-way screws are arranged in the mounting grooves in a penetrating mode, and two ends of the two-way screws are arranged in the threaded holes in a penetrating mode respectively.
Furthermore, two sets of limiting sliding grooves are formed in the mounting frame, two sets of limiting sliding blocks are arranged on the connecting blocks respectively, the limiting sliding blocks are clamped in the limiting sliding grooves, and adjusting knobs are arranged at one ends of the bidirectional screw rods.
Further, the supporting component comprises a first connecting rod, the first connecting rod is connected with the connecting block, a connecting sleeve is arranged at one end of the first connecting rod, a second connecting rod is clamped in the connecting sleeve, a spring is arranged at one end, in the connecting sleeve, of the second connecting rod, and a shifting piece is arranged at the other end of the second connecting rod.
Furthermore, one end of the first connecting rod is evenly provided with two groups of elastic sheet buckles, one end of the connecting block is evenly provided with two groups of clamping grooves, and the elastic sheet buckles are clamped in the clamping grooves.
The utility model has the beneficial effects that:
1. according to the size of patient's head, through removing the dome spring in the dome spring, the length of overhanging of dome spring in the dome spring is convenient for fix a position in the cooperation of the shell fragment latch on the dome spring and the location tooth's socket on the dome spring, and convenient to use is worn the device at patient's head through the cooperation of dome spring and dome spring after adjusting.
2. Through rotating two-way screw rod, two-way screw rod rotate and make two sets of connecting blocks move from each other with the screw hole cooperation on the two sets of connecting blocks, two sets of connecting blocks move from each other and make two sets of head rods drive two sets of second connecting rods and move from each other to make two sets of plectrums move from each other and strut patient's upper eyelid and lower eyelid, the control dynamics is convenient, and two-way screw rod has the auto-lock nature with the screw hole cooperation, is difficult not hard up after adjusting, and the location is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, the following drawings only show some examples of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic perspective view of a convenient-to-use eyelid retractor for ophthalmology according to the present invention;
fig. 2 is an exploded view of the easy-to-use eyelid retractor for ophthalmology of the present invention;
figure 3 is an exploded view of the adjustment assembly of the easy-to-use eyelid retractor for ophthalmology of the present invention;
figure 4 is an exploded view of the support assembly of the easy-to-use eyelid retractor for ophthalmology according to the present invention;
fig. 5 is an enlarged schematic view of region a in fig. 2.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
10. an arc-shaped fixing frame; 11. heat dissipation holes; 12. an arc-shaped elastic sheet; 13. a sponge cushion; 14. an anti-skid rubber pad; 15. a fixing frame; 16. fastening a bolt; 17. a mounting frame; 18. a bidirectional screw; 19. adjusting a knob; 20. a limiting chute; 21. a card slot; 22. connecting blocks; 23. a limiting slide block; 24. a shifting sheet; 25. a second connecting rod; 26. a spring; 27. the elastic sheet is buckled; 28. a first connecting rod; 29. connecting sleeves; 30. a guide chute; 31. a guide slider; 32. mounting grooves; 33. a threaded hole; 101. a spring plate latch; 102. and (5) positioning the tooth grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example (b):
as shown in fig. 1 to 5, a convenient to use type eyelid retractor for ophthalmology, eyelid retractor includes arc mount 10, arc shell fragment 12 wears to be equipped with respectively at the both ends of arc mount 10, the upper end and the lower extreme of arc shell fragment 12 one end are provided with direction slider 31 and shell fragment latch 101 respectively, direction spout 30 has been seted up to the upper end of arc mount 10, multiunit location tooth's socket 102 has evenly been seted up to the inboard lower extreme of arc mount 10, direction slider 31 card is established in direction spout 30, shell fragment latch 101 card is established in location tooth's socket 102.
During the use, through the cooperation of arc mount 10 and arc shell fragment 12, be convenient for fix the device at patient's head, through remove arc shell fragment 12 in arc mount 10, the direction slider 31 card on arc shell fragment 12 is established in the direction spout 30 on arc mount 10, stability when arc shell fragment 12 removes can be improved, and avoid removing in-process arc shell fragment 12 and drop from arc mount 10, shell fragment latch 101 on arc shell fragment 12 cooperates the overhanging length of being convenient for fix a position arc shell fragment 12 in arc mount 10 with location tooth's socket 102 on arc mount 10, thereby the convenience is adjusted according to the size of patient's head, high durability and convenient use.
The other end of shrapnel arc 12 is provided with adjusting part, adjusting part includes mounting bracket 17, mounting bracket 17 passes through fastening bolt 16 to be connected with shrapnel arc 12's one end, the installation and the dismantlement of the mounting bracket 17 of being convenient for, it is convenient to change, two sets of mounting grooves 32 have evenly been seted up on mounting bracket 17, be provided with connecting block 22 in two sets of mounting grooves 32 respectively, set up threaded hole 33 on connecting block 22, wear to be equipped with two-way screw 18 in two sets of mounting grooves 32, wear to establish respectively at two-way screw 18's both ends in threaded hole 33.
During the use, through rotating two-way screw rod 18, two-way screw rod 18 rotates and makes two sets of connecting blocks 22 move apart from each other with the screw hole 33 cooperation on two sets of connecting blocks 22, and it is convenient to adjust, and two-way screw rod 18 has the auto-lock nature with the screw hole 33 cooperation, and difficult not hard up after adjusting, and the location is convenient.
Two sets of spacing spout 20 have been seted up on the mounting bracket 17, are provided with two sets of spacing slider 23 on two sets of connecting blocks 22 respectively, and spacing slider 23 card is established in spacing spout 20, improves the stability of connecting block 22 when removing in mounting bracket 17, and the one end of two-way screw rod 18 is provided with adjust knob 19, conveniently rotates two-way screw rod 18, rotates convenient laborsaving.
Be provided with two sets of supporting component in the adjusting part, supporting component includes head rod 28, head rod 28 is connected with connecting block 22, head rod 28's one end is provided with adapter sleeve 29, the card is equipped with second connecting rod 25 in the adapter sleeve 29, that one end that second connecting rod 25 card established in adapter sleeve 29 is provided with spring 26, second connecting rod 25's the other end is provided with plectrum 24, can adjust the overhanging length of second connecting rod 25 in adapter sleeve 29 according to the patient through setting up spring 26, thereby adjust plectrum 24's position, plectrum 24 is medical silica gel material, avoid causing the damage to patient's eyeball, safety in utilization.
Two sets of shell fragment buckles 27 are evenly provided with to the one end of head rod 28, and two sets of draw-in grooves 21 have evenly been seted up to the one end of connecting block 22, and shell fragment buckle 27 card is established in draw-in groove 21, and head rod 28 and connecting block 22 are the joint, and the installation is dismantled conveniently, is convenient for change.
Please refer to fig. 1 and 2, the sponge pad 13 is disposed on the inner side of the arc-shaped fixing frame 10, the sponge pad 13 can improve the comfort of the patient when the patient wears the arc-shaped fixing frame, and the sponge pad 13 is bonded with the arc-shaped fixing frame 10, so that the sponge pad 13 is convenient to replace.
Referring to fig. 1 and 2, two groups of arc-shaped elastic pieces 12 are respectively provided with heat dissipation holes 11 to avoid the patient from heating up due to long-time wearing, the heat dissipation holes 11 are uniformly provided with multiple groups to improve the heat dissipation efficiency, the inner side of the arc-shaped elastic pieces 12 is provided with a fixing frame 15, and an anti-skidding rubber pad 14 is clamped in the fixing frame 15 to improve the firmness of the device fixed on the head of the patient.
When the device is used, according to the size of the head of a patient, the arc-shaped elastic sheet 12 is moved in the arc-shaped fixing frame 10, the elastic sheet latch 101 on the arc-shaped elastic sheet 12 is matched with the positioning tooth groove 102 on the arc-shaped fixing frame 10 to facilitate positioning the overhanging length of the arc-shaped elastic sheet 12 in the arc-shaped fixing frame 10, the device is worn on the head of the patient through the matching of the arc-shaped fixing frame 10 and the arc-shaped elastic sheet 12 after adjustment, the poking sheets 24 are positioned above the eyes of the patient, then the two groups of poking sheets 24 are respectively contacted with the upper eyelid and the lower eyelid of the patient, finally, the two groups of connecting blocks 22 are moved away by rotating the two-way screw 18 and matching with the threaded holes 33 on the two groups of connecting blocks 22, the two groups of connecting blocks 22 are moved away from each other to enable the two groups of first connecting rods 28 to drive the two groups of second connecting rods 25 to move away from each other, so that the two groups of poking sheets 24 are moved away from each other to prop open the upper eyelid and the lower eyelid of the patient, the control force is convenient, the bidirectional screw 18 is matched with the threaded hole 33 to have self-locking performance, the bidirectional screw is not easy to loosen after being adjusted, and the positioning is convenient.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.
Claims (7)
1. A convenient to use type eye speculum for ophthalmology, its characterized in that: including arc mount (10), arc shell fragment (12) are worn to be equipped with respectively at the both ends of arc mount (10), the upper end and the lower extreme of arc shell fragment (12) one end are provided with direction slider (31) and shell fragment latch (101) respectively, direction spout (30) have been seted up to the upper end of arc mount (10), multiunit location tooth's socket (102) have evenly been seted up to the inboard lower extreme of arc mount (10), direction slider (31) card is established in direction spout (30), shell fragment latch (101) card is established in location tooth's socket (102), the other end of arc shell fragment (12) is provided with adjusting part, be provided with two sets of supporting component in the adjusting part.
2. The easy-to-use eyelid retractor for ophthalmology of claim 1, wherein: the inner side of the arc-shaped fixing frame (10) is provided with a spongy cushion (13), and the spongy cushion (13) is bonded with the arc-shaped fixing frame (10).
3. The easy-to-use eyelid retractor for ophthalmology of claim 1, wherein: the two sets of arc-shaped elastic pieces (12) are respectively provided with a plurality of heat dissipation holes (11), the heat dissipation holes (11) are uniformly provided with a plurality of groups, the inner sides of the arc-shaped elastic pieces (12) are provided with fixing frames (15), and anti-skid rubber pads (14) are clamped in the fixing frames (15).
4. The easy-to-use eyelid retractor for ophthalmology of claim 1, wherein: the adjusting part comprises a mounting frame (17), the mounting frame (17) is connected with one end of the arc-shaped elastic piece (12) through a fastening bolt (16), two sets of mounting grooves (32) are evenly formed in the mounting frame (17), two sets of connecting blocks (22) are arranged in the mounting grooves (32) respectively, threaded holes (33) are formed in the connecting blocks (22), two sets of two-way screw rods (18) are arranged in the mounting grooves (32) in a penetrating mode, and two ends of the two-way screw rods (18) are arranged in the threaded holes (33) in a penetrating mode respectively.
5. The easy-to-use eyelid retractor for ophthalmology of claim 4, wherein: two sets of limiting sliding grooves (20) are formed in the mounting rack (17), two sets of limiting sliding blocks (23) are arranged on the connecting blocks (22) respectively, the limiting sliding blocks (23) are clamped in the limiting sliding grooves (20), and adjusting knobs (19) are arranged at one ends of the bidirectional screw rods (18).
6. The easy-to-use eyelid retractor for ophthalmology of claim 4, wherein: the supporting component comprises a first connecting rod (28), the first connecting rod (28) is connected with the connecting block (22), one end of the first connecting rod (28) is provided with a connecting sleeve (29), a second connecting rod (25) is arranged in the connecting sleeve (29) in a clamping mode, the second connecting rod (25) is clamped and arranged at one end in the connecting sleeve (29) and provided with a spring (26), and the other end of the second connecting rod (25) is provided with a shifting sheet (24).
7. The easy-to-use eyelid retractor for ophthalmology of claim 6, wherein: two groups of elastic sheet buckles (27) are uniformly arranged at one end of the first connecting rod (28), two groups of clamping grooves (21) are uniformly formed at one end of the connecting block (22), and the elastic sheet buckles (27) are clamped in the clamping grooves (21).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121575694.3U CN215534672U (en) | 2021-07-12 | 2021-07-12 | Convenient-to-use eyelid retractor for ophthalmology |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121575694.3U CN215534672U (en) | 2021-07-12 | 2021-07-12 | Convenient-to-use eyelid retractor for ophthalmology |
Publications (1)
Publication Number | Publication Date |
---|---|
CN215534672U true CN215534672U (en) | 2022-01-18 |
Family
ID=79825012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202121575694.3U Expired - Fee Related CN215534672U (en) | 2021-07-12 | 2021-07-12 | Convenient-to-use eyelid retractor for ophthalmology |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN215534672U (en) |
-
2021
- 2021-07-12 CN CN202121575694.3U patent/CN215534672U/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3955885A (en) | Eyeglass support device | |
CN111658306A (en) | Eyelid distraction device for ophthalmologic nursing | |
CN215534672U (en) | Convenient-to-use eyelid retractor for ophthalmology | |
CN211356177U (en) | Ophthalmic surgery nursing device | |
CN211796396U (en) | Multi-purpose formula ophthalmology inspection device of ophthalmology | |
CN214909069U (en) | Clinical eye hot compress device | |
CN214967572U (en) | Eyelid opening device for ophthalmologic nursing | |
CN211093992U (en) | Ophthalmic jaw holds in palm integrative cap | |
CN214049110U (en) | Head fixing device for ophthalmic surgery | |
CN211409191U (en) | Eye speculum for ophthalmology | |
CN210903985U (en) | Ophthalmic eye periphery massage type therapeutic device | |
CN209751532U (en) | Auxiliary device for surgical operation | |
CN217310820U (en) | Be used for ophthalmology laser surgery light filtering protector | |
CN213217718U (en) | Ophthalmology clinical facial fixing device | |
CN216256514U (en) | Pillow for behind-the-ear operation | |
CN220632352U (en) | Ophthalmic postoperative nursing is with exempting from to tear open eye-shade of changing dressings | |
CN214856571U (en) | Ophthalmic device that hides eye | |
CN212853425U (en) | Multifunctional medical frontal mirror | |
CN210170017U (en) | Multidirectional adjusting bracket for ear endoscope | |
CN217137308U (en) | Pillow for noon break in classroom | |
CN220917646U (en) | Prone resistance to compression headrest with adjustable it is three-dimensional | |
CN211658375U (en) | Head supporting device with adjusting structure for ophthalmologic detection | |
CN213333750U (en) | Lighting device is used in nursing at night of basic unit with being convenient for wear | |
CN219680685U (en) | Eyelid opening device for ophthalmic examination | |
CN210205084U (en) | Head-mounted ophthalmic eye shading device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220118 |
|
CF01 | Termination of patent right due to non-payment of annual fee |