CN113974963A - Vitreous cavity assisted drug injection device - Google Patents
Vitreous cavity assisted drug injection device Download PDFInfo
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- CN113974963A CN113974963A CN202111526799.4A CN202111526799A CN113974963A CN 113974963 A CN113974963 A CN 113974963A CN 202111526799 A CN202111526799 A CN 202111526799A CN 113974963 A CN113974963 A CN 113974963A
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- fixedly connected
- rod
- auxiliary
- injection device
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- 238000002347 injection Methods 0.000 title claims abstract description 54
- 239000007924 injection Substances 0.000 title claims abstract description 54
- 239000003814 drug Substances 0.000 title claims abstract description 31
- 229940079593 drug Drugs 0.000 title claims description 7
- 210000000744 eyelid Anatomy 0.000 claims abstract description 42
- 210000001747 pupil Anatomy 0.000 claims abstract description 23
- 210000005252 bulbus oculi Anatomy 0.000 claims abstract description 18
- 230000007480 spreading Effects 0.000 claims abstract description 3
- 238000003892 spreading Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 210000001508 eye Anatomy 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 208000002177 Cataract Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 210000001232 limbus corneae Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/02—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors
- A61B17/0231—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors for eye surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00861—Methods or devices for eye surgery using laser adapted for treatment at a particular location
- A61F2009/00874—Vitreous
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a vitreous cavity auxiliary medicine injection device which comprises first hinged rods, wherein two ends of each first hinged rod are hinged with first connecting rods, the other ends of the two first connecting rods are fixedly connected with auxiliary medicine injection parts, and a spreading part is arranged between the two first connecting rods; the auxiliary medicine injection part comprises a first eyelid supporting part fixedly connected with one first connecting rod and a second eyelid supporting part fixedly connected with the other first connecting rod, a pupil positioning part is arranged between the first eyelid supporting part and the second eyelid supporting part in a sliding mode, and a medicine injection positioning part is arranged on one side, away from the opening part, of the pupil positioning part, so that the vitreous cavity medicine injection process is more standard, and the effects of reducing the operation difficulty and the risk of injuring eyeballs in the operation process are achieved.
Description
Technical Field
The invention belongs to the technical field of ophthalmic medical instruments, and particularly relates to a vitreous chamber auxiliary medicine injection device.
Background
Vitreous cavity injection is one of the important treatment methods of ophthalmic diseases, has extremely wide clinical application, is not limited by blood-eye barriers compared with other administration routes, has stronger drug action pertinence, can reach higher drug concentration in a short time, reduces the systemic toxic reaction, and better controls the disease development. At present, no special operation auxiliary tool exists clinically, when a doctor carries out a traditional vitreous cavity drug injection operation, the doctor holds tweezers to fix eyeballs with one hand, holds an injector with the other hand, an assistant needs to measure the corneal limbus distance by using an angle gauge, an operator judges the needle insertion angle according to the feeling, and then the medicine is injected into the vitreous cavity. The existing defects comprise that: during operation, a patient is tense, eyeball rotation may occur, the eyeball is fixed by forceps only, and once crystal damage occurs, cataract can be caused; for inexperienced doctors, the error of the needle insertion angle can also damage the crystal, and complications such as cataract and the like are caused; without a surgical microscope, the base unit has difficulty performing such surgery. Therefore, a vitreous cavity auxiliary drug injection device is needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a vitreous cavity auxiliary medicine injection device, which aims to solve the problems and achieve the purpose of reducing the difficulty of operation of vitreous cavity medicine injection operation.
In order to achieve the purpose, the invention provides the following scheme: the auxiliary injection device for the vitreous cavity comprises first hinged rods, wherein two ends of each first hinged rod are hinged with first connecting rods, the other ends of the two first connecting rods are fixedly connected with auxiliary injection parts, and an opening part is arranged between the two first connecting rods;
the auxiliary medicine injection part comprises a first eyelid supporting part fixedly connected with one first connecting rod and a second eyelid supporting part fixedly connected with the other first connecting rod, a pupil positioning part is arranged between the first eyelid supporting part and the second eyelid supporting part in a sliding mode, and a medicine injection positioning part is arranged on one side, far away from the opening part, of the pupil positioning part.
Preferably, injection location portion include with pupil location portion fixed connection's first scale, first scale other end sliding connection has the second scale, the second scale is kept away from the one end of first scale has seted up the second locating hole, the lateral wall threaded connection of first scale has the second fixed pin.
Preferably, the pupil positioning portion includes an arc-shaped piece, a first positioning hole is formed in the center of the arc-shaped piece, two opposite side edges of the arc-shaped piece are fixedly connected with one ends of two third connecting rods respectively, the third connecting rods are perpendicular to the first scale, the other ends of the two third connecting rods are fixedly connected with arc-shaped sliding blocks, and the arc-shaped sliding blocks are slidably connected with the first eyelid supporting portion and the second eyelid supporting portion.
Preferably, the first eyelid supporting portion includes a first fixing rod fixedly connected with the first connecting rod, a first arc-shaped plate is fixedly connected with the bottom of the first fixing rod, one end of a plurality of first springs is fixedly connected with the side wall of the first fixing rod, a first connecting arc is fixedly connected with the other end of the first spring, a first accommodating groove is formed in the first connecting arc, and the arc-shaped sliding block is slidably connected with the first accommodating groove.
Preferably, the second eyelid supporting portion is fixedly connected with a second fixing rod fixedly connected with the first fixing rod, a second arc-shaped plate is fixedly connected with the bottom of the second fixing rod, a plurality of first springs are fixedly connected with the side wall of the second fixing rod, a second connecting arc is fixedly connected with the other end of each first spring, a through hole is formed in the second connecting arc, a second accommodating groove is formed in the second connecting arc, the arc-shaped sliding block is slidably connected with the second accommodating groove, and a fixing portion is slidably connected to one end, close to the second fixing rod, of the through hole.
Preferably, the fixed part include with through-hole sliding connection's first fixed pin, the tail end of first fixed pin passes the through-hole gets into in the second holding tank, the tail end of first fixed pin with arc slider looks butt, the solid fixed ring of lateral wall middle part fixedly connected with of first fixed pin, first fixed pin lateral wall cover is equipped with the second spring, the second spring is located gu fixed ring with between the second holding tank inside wall.
Preferably, the opening part comprises two second connecting rods hinged to the middle of the first connecting rod, the other end of each second connecting rod is hinged to a second hinged rod, a forward threaded hole is formed in the second hinged rod, a reverse threaded hole is formed in the first hinged rod, and the second hinged rod is connected with the adjusting part through threads on the first hinged rod.
Preferably, the adjusting part comprises a connecting bolt in threaded connection with the first hinge rod and the second hinge rod, two ends of the connecting bolt are fixedly connected with anti-falling nuts respectively, and the first hinge rod and the second hinge rod are located between the anti-falling nuts.
Preferably, the adjusting range of the second graduated scale is 3mm-5 mm.
Preferably, the radian of the arc-shaped piece is matched with the radian of an eyeball of a human body.
The invention has the following technical effects:
the opening part arranged in the device can open the upper eyelid and the lower eyelid of the eye, and the opening angle can be adjusted according to the eye sizes of different patients, so that the subsequent injection operation is convenient, the pupil positioning part can perform accurate positioning according to the pupil sight direction of the patients, and the injection positioning part can perform accurate positioning on the injection position, thereby avoiding the injury to the eye of the patient caused by inaccurate selection of the injection position in the injection process. The device of the invention can ensure that the vitreous cavity injection process is more standard, and reduce the operation difficulty and the risk of injuring eyeballs in the operation process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of the apparatus of the present invention;
FIG. 2 is a top view of the apparatus of the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is an enlarged view of a portion C of FIG. 2;
fig. 6 is a second connecting arc cross-sectional view.
Wherein, 1, a first connecting rod; 2. a first fixing lever; 3. a second fixing bar; 4. a first hinge lever; 5. a second hinge lever; 6. a second link; 7. a connecting bolt; 8. an anti-drop nut; 9. a first hinge shaft; 10. a second hinge shaft; 11. a third hinge shaft; 12. a groove; 13. a second arc-shaped plate; 14. a first arc-shaped plate; 15. a first connecting arc; 16. a second connecting arc; 17. a third link; 18. an arc-shaped sheet; 19. a first positioning hole; 20. a first fixing pin; 21. a through hole; 22. a first scale; 23. a second scale; 24. a second positioning hole; 25. a second fixing pin; 26. a first spring; 27. an arc-shaped sliding block; 28. a first accommodating groove; 29. a fixing ring; 30. a second spring; 31. and a second accommodating groove.
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 order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
With reference to the attached drawings 1-6, the invention provides a vitreous cavity auxiliary medicine injection device, which comprises first hinged rods 4, wherein two ends of each first hinged rod 4 are hinged with first connecting rods 1, the other ends of the two first connecting rods 1 are fixedly connected with auxiliary medicine injection parts, and a spreading part is arranged between the two first connecting rods 1;
the auxiliary medicine injection part comprises a first eyelid supporting part fixedly connected with one first connecting rod 1 and a second eyelid supporting part fixedly connected with the other first connecting rod 1, a pupil positioning part is arranged between the first eyelid supporting part and the second eyelid supporting part in a sliding mode, and a medicine injection positioning part is arranged on one side, away from the opening part, of the pupil positioning part.
The portion of strutting that sets up can strut the upper eyelid and the lower eyelid of eye to adjust the angle of strutting according to different patients ' eye size, make things convenient for subsequent injection operation, pupil location portion can carry out the accurate positioning according to patient's pupil sight direction, and injection location portion can carry out the accurate positioning to the injection position, avoids the injection in-process because the inaccurate of injection position selection and causes the injury to patient's eye.
Further optimize the scheme, injection location portion includes the first scale 22 with pupil location portion fixed connection, and first scale 22 other end sliding connection has second scale 23, and second scale 23 keeps away from the one end of first scale 22 and has seted up second locating hole 24, and the lateral wall threaded connection of first scale 22 has second fixed pin 25.
The first graduated scale 22 is connected with the second graduated scale 23 in a sliding mode, the first graduated scale 22 is matched with the second graduated scale 23, the position of the second positioning hole 24 can be adjusted within the range of 3mm-5mm at will, after the position of the second positioning hole 24 is selected, the second graduated scale 23 is fixed through screwing the second fixing pin 25, and the medicine injection operation through the second positioning hole 24 is convenient to follow-up.
Further optimization scheme, pupil location portion includes arc piece 18, and first locating hole 19 has been seted up to arc piece 18 central point, and the double-phase opposite side of arc piece 18 is the one end of two third connecting rods 17 of fixedly connected with respectively, and third connecting rod 17 sets up with first scale 22 mutually perpendicular, and the other end fixedly connected with arc slider 27 of two third connecting rods 17, arc slider 27 and first eyelid supporting part and second eyelid supporting part sliding connection.
The arc-shaped piece 18 can be positioned by aligning the first positioning hole 19 of the arc-shaped piece 18 with the center of the pupil of the patient, and the arc-shaped piece 18 is fixed by the fixing part after the positioning is finished.
Further optimize the scheme, first eyelid supporting portion includes the first dead lever 2 with 1 fixed connection of first connecting rod, the first arc 14 of 2 bottom fixedly connected with of first dead lever, the one end of a plurality of first springs 26 of 2 lateral walls fixedly connected with of first dead lever, the first arc 15 of connecting of 26 other end fixedly connected with of first spring, first holding tank 28 has been seted up to first connection arc 15 is inside, arc slider 27 and first holding tank 28 sliding connection.
The first arc-shaped plate 14 is placed between the upper eyelid and the eyeball of the patient, the upper eyelid can be opened from the surface of the eyeball, the first accommodating groove 28 is used for accommodating the arc-shaped sliding block 27 and can ensure that the arc-shaped sliding block 27 can freely slide in the first accommodating groove 28, and the first spring 26 plays a role in connecting the first fixing rod 2 and the first connecting arc 15.
Further optimize the scheme, second eyelid supporting part and 1 fixed connection's of first connecting rod second dead lever 3, 3 bottom fixedly connected with second arc 13 of second dead lever, 3 lateral walls fixedly connected with of second dead lever 26 a plurality of first springs 26, first spring 26 other end fixedly connected with second connection arc 16, through-hole 21 has been seted up on second connection arc 16, second holding tank 31 has been seted up to second connection arc 16 inside, arc slider 27 and 31 sliding connection of second holding tank, the one end sliding connection that through-hole 21 is close to second dead lever 3 has the fixed part.
Put into patient's lower eyelid and eyeball with second arc 13 between, can strut lower eyelid from the eyeball surface, second holding tank 31 is used for holding arc slider 27, and can guarantee that arc slider 27 freely slides in second holding tank 31, first spring 26 plays the effect of connecting second dead lever 3 and second connecting arc 16, at first spring 26, under the combined action of first connecting arc 15 and second connecting arc 16, can make this device strut arbitrary angle and not influence the location of arc piece 18 and patient's pupil.
Further optimize the scheme, the fixed part includes the first fixed pin 20 with through-hole 21 sliding connection, in the tail end of first fixed pin 20 passed through-hole 21 and got into second holding tank 31, the tail end and the arc slider 27 looks butt of first fixed pin 20, the solid fixed ring 29 of the solid fixed ring of lateral wall middle part fixedly connected with of first fixed pin 20, first fixed pin 20 lateral wall cover is equipped with second spring 30, second spring 30 is located between solid fixed ring 29 and the second holding tank 31 inside wall.
The fixed part can realize the location to arc piece 18, exert an outside pulling force to first fixed pin 20, can make first fixed pin 20 loosen the fixed power to arc slider 27, make arc slider 27 can freely slide in second holding tank 31, and then drive arc piece 18 and remove, after arc piece 18 removed suitable position, loosen first fixed pin 20, under the spring action of second spring 30, first fixed pin 20 fixes arc slider 27 again, and then make arc piece 18 fix in the relative position of patient's pupil, second spring 30 is in compression state all the time, when guaranteeing not to exert pulling force to first fixed pin 20, first fixed pin 20 fixes arc slider 27 always.
Further optimize the scheme, the portion of strutting includes two second connecting rods 6 with two first connecting rods 1 middle parts articulated, and the other end of two second connecting rods 6 articulates there is second hinge rod 5, has seted up forward screw hole on the second hinge rod 5, has seted up reverse screw hole on the first hinge rod 4, and threaded connection has the regulation portion on second hinge rod 5 and the first hinge rod 4.
Second connecting rod 6 is articulated through third articulated axle 11 and first connecting rod 1 middle part, set up recess 12 on the first connecting rod 1, make things convenient for second connecting rod 6 to rotate at will with third articulated axle 11 as the center, the other end of second connecting rod 6 is articulated through second articulated shaft 10 and second articulated rod 5, the tip of first connecting rod 1 is realized articulated through the tip of first articulated shaft 9 with first articulated rod 4, guarantee that first connecting rod 1 can rotate wantonly, forward screw hole and reverse screw hole can be guaranteed to rotate regulation portion to same direction and can be realized being close to or keeping away from of second articulated rod 5 and first articulated rod 4.
Further optimize the scheme, the regulating part includes connecting bolt 7 with 5 threaded connection of first articulated rod 4 and second articulated rod, and connecting bolt 7's both ends are fixedly connected with anticreep nut 8 respectively, and first articulated rod 4 and second articulated rod 5 are located between two anticreep nuts 8.
First screw hole has been seted up on first articulated rod 4, second screw hole has been seted up on the second articulated rod 5, and connecting bolt 7 links to each other through first screw hole and second screw hole together, rotates connecting bolt 7 and can adjust the distance between first articulated rod 4 and the second articulated rod 5, and anticreep nut 8 prevents that first articulated rod 4 and second articulated rod 5 break away from connecting bolt 7.
In a further optimized scheme, the adjusting range of the second graduated scale 23 is 3mm-5 mm.
The intravitreal injection is administered 3.5mm or 4mm behind the limbus, and the second scale 23 is adjusted to a range of 3mm-5 mm. It is possible to ensure that the selected injection site is more accurate.
Further optimizing the scheme, the radian of the arc-shaped piece 18 is matched with the radian of the eyeball of the human body.
The matching of the arcs can avoid the influence of the arc-shaped pieces 18 on the pupils of the patient to cause other problems in the medicine injection process.
The working process of the embodiment is as follows:
when the device is used for injecting medicine into a glass cavity of a patient, preparation work such as anesthesia, disinfection and cleaning is firstly carried out on the eyeball of the patient, after the preparation work is finished, the first arc-shaped plate 14 of the device is placed between the upper eyelid and the eyeball of the patient, the second arc-shaped plate 13 is placed between the lower eyelid and the eyeball of the patient, then the connecting bolt 7 is rotated to adjust the opening degree between the two first connecting rods 1, the purpose of expanding the upper eyelid and the lower eyelid of the patient is achieved, the eyeball of the patient is exposed, subsequent medicine injection operation is convenient, after the upper eyelid and the lower eyelid of the patient are expanded, the eyeball of the patient is ordered to be kept still, then the arc-shaped sheet 18 is rotated, the first positioning hole 19 is aligned with the pupil of the patient, then the arc-shaped sheet 18 is fixed by the first fixing pin 20, and after the fixation is finished, the medicine injection operation can be carried out on the eyeball of the patient through the second positioning hole 24.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The auxiliary injection device for the vitreous cavity is characterized by comprising first hinged rods (4), wherein two ends of each first hinged rod (4) are hinged with first connecting rods (1), the other ends of the two first connecting rods (1) are fixedly connected with auxiliary injection parts, and a spreading part is arranged between the two first connecting rods (1);
the auxiliary medicine injection part comprises a first eyelid supporting part fixedly connected with one first connecting rod (1) and a second eyelid supporting part fixedly connected with the other first connecting rod (1), a pupil positioning part is arranged between the first eyelid supporting part and the second eyelid supporting part in a sliding mode, and a medicine injection positioning part is arranged on one side, far away from the opening part, of the pupil positioning part.
2. The auxiliary injection device for the vitreous cavity according to claim 1, wherein the injection positioning portion comprises a first graduated scale (22) fixedly connected with the pupil positioning portion, the other end of the first graduated scale (22) is slidably connected with a second graduated scale (23), a second positioning hole (24) is formed in one end of the second graduated scale (23) far away from the first graduated scale (22), and a second fixing pin (25) is connected with the side wall of the first graduated scale (22) in a threaded manner.
3. The auxiliary injection device for vitreous chamber according to claim 2, wherein the pupil positioning portion comprises an arc-shaped piece (18), a first positioning hole (19) is formed in the center of the arc-shaped piece (18), two opposite sides of the arc-shaped piece (18) are fixedly connected with one end of two third connecting rods (17), the third connecting rods (17) and the first scale (22) are perpendicular to each other, the other end of the two third connecting rods (17) is fixedly connected with an arc-shaped sliding block (27), and the arc-shaped sliding block (27) is slidably connected with the first eyelid supporting portion and the second eyelid supporting portion.
4. The auxiliary vitreous chamber injection device according to claim 3, wherein the first eyelid supporting portion comprises a first fixing rod (2) fixedly connected to the first connecting rod (1), a first arc-shaped plate (14) is fixedly connected to the bottom of the first fixing rod (2), one end of a plurality of first springs (26) is fixedly connected to the side wall of the first fixing rod (2), the other end of each first spring (26) is fixedly connected to a first connecting arc (15), a first accommodating groove (28) is formed in each first connecting arc (15), and the arc-shaped sliding block (27) is slidably connected to the first accommodating groove (28).
5. The auxiliary vitreous chamber injection device according to claim 4, wherein the second eyelid supporting portion is fixedly connected to a second fixing rod (3) of the first connecting rod (1), a second arc-shaped plate (13) is fixedly connected to the bottom of the second fixing rod (3), a plurality of first springs (26) are fixedly connected to the side wall of the second fixing rod (3), a second connecting arc (16) is fixedly connected to the other end of each first spring (26), a through hole (21) is formed in each second connecting arc (16), a second accommodating groove (31) is formed in each second connecting arc (16), the arc-shaped sliding block (27) is slidably connected to the second accommodating groove (31), and a fixing portion is slidably connected to one end, close to the second fixing rod (3), of each through hole (21).
6. The auxiliary vitreous cavity injection device according to claim 5, wherein the fixing part comprises a first fixing pin (20) slidably connected to the through hole (21), the tail end of the first fixing pin (20) passes through the through hole (21) and enters the second accommodating groove (31), the tail end of the first fixing pin (20) abuts against the arc-shaped slider (27), a fixing ring (29) is fixedly connected to the middle of the outer side wall of the first fixing pin (20), a second spring (30) is sleeved on the outer side wall of the first fixing pin (20), and the second spring (30) is located between the fixing ring (29) and the inner side wall of the second accommodating groove (31).
7. The auxiliary vitreous cavity injection device according to claim 1, wherein the distraction portion comprises two second connecting rods (6) hinged to the middle portions of the two first connecting rods (1), the other ends of the two second connecting rods (6) are hinged to second hinge rods (5), the second hinge rods (5) are provided with forward threaded holes, the first hinge rods (4) are provided with reverse threaded holes, and the second hinge rods (5) and the first hinge rods (4) are in threaded connection with adjusting portions.
8. The auxiliary medicine injection device for vitreous cavity according to claim 7, wherein said adjusting portion comprises a connecting bolt (7) in threaded connection with said first hinge rod (4) and said second hinge rod (5), two ends of said connecting bolt (7) are respectively fixedly connected with anti-dropping nuts (8), and said first hinge rod (4) and said second hinge rod (5) are located between two anti-dropping nuts (8).
9. The vitreous cavity auxiliary drug injection device according to claim 2, wherein the second scale (23) has an adjustment range of 3mm-5 mm.
10. A vitreous cavity auxiliary drug injection device according to claim 3, characterized in that the arc of the arc-shaped piece (18) is adapted to the arc of the eyeball of a human body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111526799.4A CN113974963A (en) | 2021-12-14 | 2021-12-14 | Vitreous cavity assisted drug injection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111526799.4A CN113974963A (en) | 2021-12-14 | 2021-12-14 | Vitreous cavity assisted drug injection device |
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| CN113974963A true CN113974963A (en) | 2022-01-28 |
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| CN202111526799.4A Withdrawn CN113974963A (en) | 2021-12-14 | 2021-12-14 | Vitreous cavity assisted drug injection device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114947730A (en) * | 2022-05-23 | 2022-08-30 | 吴光辉 | A pupil automatic monitoring device |
| CN115770137A (en) * | 2022-12-09 | 2023-03-10 | 苏州一智医疗科技有限公司 | A guiding aid for opening the vitreous cavity |
| CN117100498A (en) * | 2023-08-22 | 2023-11-24 | 中国人民解放军陆军军医大学第一附属医院 | Corneal astigmatism axial position intelligent marking instrument |
| CN117694816A (en) * | 2024-02-04 | 2024-03-15 | 北京茗视光眼科医院管理有限公司 | Ophthalmic examination auxiliary device |
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2021
- 2021-12-14 CN CN202111526799.4A patent/CN113974963A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114947730A (en) * | 2022-05-23 | 2022-08-30 | 吴光辉 | A pupil automatic monitoring device |
| CN115770137A (en) * | 2022-12-09 | 2023-03-10 | 苏州一智医疗科技有限公司 | A guiding aid for opening the vitreous cavity |
| CN117100498A (en) * | 2023-08-22 | 2023-11-24 | 中国人民解放军陆军军医大学第一附属医院 | Corneal astigmatism axial position intelligent marking instrument |
| CN117100498B (en) * | 2023-08-22 | 2025-08-26 | 中国人民解放军陆军军医大学第一附属医院 | Corneal astigmatism axis intelligent marker |
| CN117694816A (en) * | 2024-02-04 | 2024-03-15 | 北京茗视光眼科医院管理有限公司 | Ophthalmic examination auxiliary device |
| CN117694816B (en) * | 2024-02-04 | 2024-05-07 | 北京茗视光眼科医院管理有限公司 | Ophthalmic examination auxiliary device |
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Application publication date: 20220128 |
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| WW01 | Invention patent application withdrawn after publication |