CN218589195U

CN218589195U - Intraocular lens suspension structure

Info

Publication number: CN218589195U
Application number: CN202222149216.7U
Authority: CN
Inventors: 林仲; 吴荣瀚; 林克; 林威
Original assignee: Eye Hospital of Wenzhou Medical University
Current assignee: Eye Hospital of Wenzhou Medical University
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2023-03-10
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses an intraocular lens suspension structure, which comprises two groups of bending pinheads and a telescopic mechanism for suspending intraocular lenses, wherein one ends of the two groups of bending pinheads are connected by a suture, the telescopic mechanism comprises a second fixed station, a second mobile station, a first mobile station and a first fixed station which are arranged from left to right in sequence, the second mobile station is provided with two groups of connecting pipes, and a plurality of groups of sealing plug sheets are arranged in the connecting pipes; a first loop bar is connected with a second loop bar, and an air bag is arranged on the inner wall of the first loop bar; through the arrangement of the telescopic mechanism and the bending needle heads, the two groups of bending needle heads enter the eyeball along with the rotation of the threaded rod and penetrate through the artificial lens, so that four-point fixation is completed; through the arrangement of the second mobile station, the first sleeve rod, the second sleeve rod and the gear and the rack, the bending needle head is pulled out of the eyeball, and meanwhile, the two groups of bending needle heads are close to each other to be convenient to tie a knot and fix.

Description

Intraocular lens suspension structure

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an artificial lens suspension structure.

Background

Intraocular lenses are currently the most effective means of correcting the refraction of aphakic eyes, replacing the original lens anatomically and optically, and forming a near-normal system, particularly posterior chamber intraocular lenses, fixed in the physiological position of the normal lens. Can be used for monocular, can quickly recover vision after operation, and is easy to establish monocular vision and stereoscopic vision.

In the prior art, in the positioning operation of suturing and fixing the sclera puncture point by the ophthalmic artificial lens, the cornea edge needs to be marked and positioned before the operation, so that the problem of eye pollution or inaccurate estimation and positioning of the sclera puncture point in the operation is easily caused, and the effect of the operation is influenced; meanwhile, when the existing artificial lens is sutured, medical staff need to thread the fixing point of the artificial lens in the operation, the requirement on the operation accuracy of a doctor is high, and the hidden troubles of postoperative discomfort, suture line loosening and the like are easy to occur, so that the operation is influenced.

SUMMERY OF THE UTILITY MODEL

To solve the above technical problem, the present invention provides an intraocular lens suspension structure.

The technical scheme of the utility model is that: an artificial lens suspension structure comprises two groups of bending needles for suspending an artificial lens and a telescopic mechanism,

the telescopic mechanism comprises a second fixed station, a second mobile station, a first mobile station and a first fixed station which are arranged from left to right in sequence, two groups of fixed rods are arranged between the second fixed station and the second mobile station, one ends of the two groups of fixed rods are respectively and fixedly connected with two ends of the second fixed station, the other ends of the two groups of fixed rods are respectively and fixedly connected with two ends of the first fixed station,

a second mobile station parallel to the second fixed station is arranged at one side of the second fixed station, two ends of the second mobile station are respectively connected with the corresponding fixed rods in a sliding way, a first mobile station parallel to the first fixed station is arranged at one side of the first fixed station, two ends of the first mobile station are respectively connected with the corresponding fixed rods in a sliding way,

the first fixed station is provided with a threaded rod which is rotationally connected with the first fixed station, the threaded part of the threaded rod is in threaded connection with a threaded hole which is arranged on the first movable station, the threaded rod is perpendicular to the first fixed station, and the first movable station can move relative to the first fixed station when the threaded rod rotates;

the second mobile station is provided with a first loop bar perpendicular to the first loop bar, a second loop bar rotationally connected with the second fixed station is arranged on a second fixed station corresponding to the first loop bar, the second loop bar is perpendicular to the second fixed station, an air bag is arranged in the first loop bar, the second loop bar is in sliding sleeve connection with the first loop bar and is connected with the air bag, two groups of bending needles are symmetrically arranged by taking a threaded rod as a symmetry axis, one ends of the two groups of bending needles are connected with the first mobile station, one ends of the two groups of bending needles are connected through a suture, the air bag can support the lengths of the first loop bar and the second loop bar, when the sealing plug piece is opened, the air bag can release air, the second loop bar can be sleeved into the first loop bar, and the second mobile station can move to the second fixed station;

the second mobile station is provided with two groups of connecting pipes for clamping and sleeving the other ends of the bent needle heads, and the air bag is communicated with the connecting pipes through pipes arranged in the second mobile station; a plurality of groups of sealing plug sheets for sealing the through pipe are arranged in the connecting pipe; through the setting of sealed chock plate, can make crooked syringe needle block in the connecting tube, and can ensure gasbag and siphunculus be sealing state.

Furthermore, the air bag is of an annular structure, a gear is arranged on the side surface of the second mobile station, the gear penetrates through the second mobile station through a shaft lever and extends into the first loop bar, a clamping groove is formed in the end surface of the shaft lever positioned in the inner ring area of the air bag, and a convex block clamped with the clamping groove is arranged on the end surface of the second loop bar positioned in the inner ring area of the air bag; the connecting pipes are in sliding clamping connection with the outer side face of the second mobile station, a group of racks are respectively arranged on the two groups of connecting pipes, and the two groups of racks are in central symmetry with the gear and are in meshing transmission with the gear; through the setting, can realize that back in first loop bar is gone into to the second loop bar cover, the lug carries out the joint with the draw-in groove, and the second loop bar can drive the gear through the axostylus axostyle and rotate, and the gear can drive the rack and rotate, can realize that the connecting pipe carries out inside and outside displacement to realize being close to of crooked syringe needle, so that accomplish and tie a knot.

Furthermore, a group of connecting rods is respectively arranged on the side surfaces of the same side of the first mobile station and the first fixed station, one end of each group of connecting rods is respectively connected with the corresponding first mobile station and the corresponding first fixed station in a rotating manner, and the other ends of the two groups of connecting rods are mutually connected in a rotating manner; the first mobile station can be caused to move relative to the first fixed station.

Further, the length of the bent needle is 18-20 mm, and the bent needle can be adapted to a common artificial lens for use.

Furthermore, first fixed station with the second fixed station bottom all is equipped with fills up the platform for this structure can be fixed and use respectively in the eye periphery, improves the practicality.

The beneficial effects of the utility model are that:

(1) The utility model, through the arrangement of the telescopic mechanism and the bending needle heads, enables the two groups of bending needle heads to enter the specific positions of the eyeballs along with the rotation of the threaded rods and to relatively accurately pass through the four holes of the artificial lens, thereby completing the four-point fixation;

(2) The utility model makes the second mobile station move close to the second fixed station through the arrangement of the second mobile station, the first loop bar, the second loop bar and the air bag, and the bent needle head can be pulled out from the eyeball; meanwhile, through the arrangement of the gear and the rack, after the bent needle heads are pulled out of the eyeballs, the two groups of bent needle heads are enabled to be drawn close inwards so as to be convenient for knotting and fixing.

Drawings

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

fig. 2 is a longitudinal sectional view of embodiment 1 of the present invention;

fig. 3 is a schematic view showing an assembly relationship between the first loop bar and the second loop bar according to embodiment 1 of the present invention;

fig. 4 is a schematic view of the connecting tube of the present invention;

fig. 5 is an overall appearance schematic diagram of embodiment 2 of the present invention;

fig. 6 is a schematic view showing an assembly relationship between the first loop bar and the second loop bar according to embodiment 2 of the present invention;

FIG. 7 is a schematic view of a curved needle tip in accordance with the present invention in combination with an intraocular lens;

the device comprises a bending needle 1, a telescopic mechanism 2, a threaded rod 21, a first fixing table 22, a connecting rod 221, a first moving table 23, a fixed rod 24, a second moving table 25, a first loop bar 251, an air bag 2511, a connecting pipe 252, a sealing plug 2521, a rack 253, a second fixing table 26, a second loop bar 261 and a gear 262.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description, so as to better illustrate the advantages of the present invention.

Example 1

As shown in fig. 1 and 7, an intraocular lens suspension structure comprises two groups of bent needles 1 for suspending an intraocular lens and a telescopic mechanism 2, wherein the length of the bent needle 1 is 18mm, and two ends of the bent needle 1 are bent upwards for use; the telescopic mechanism 2 comprises a second fixed station 26, a second moving station 25, a first moving station 23 and a first fixed station 22 which are arranged from left to right in sequence, two groups of fixed rods 24 are arranged between the second fixed station 26 and the second moving station 25, the left ends of the two groups of fixed rods 24 are respectively and fixedly connected with the two ends of the second fixed station 26, the right ends of the two groups of fixed rods 24 are respectively and fixedly connected with the two ends of the first fixed station 22,

as shown in fig. 2 and 3, a second movable stage 25 parallel to the second fixed stage 26 is disposed on one side below the second fixed stage 26, two ends of the second movable stage 25 are slidably connected to the corresponding fixed rods 24, respectively, a first movable stage 23 parallel to the first fixed stage 22 is disposed on one side of the first fixed stage 22, and two ends of the first movable stage 23 are slidably connected to the corresponding fixed rods 24, respectively; the first fixed table 22 is provided with a threaded rod 21 in sliding connection with the first fixed table, the threaded part of the threaded rod 21 is in threaded connection with a threaded hole formed in the first movable table 23, the threaded rod 21 is perpendicular to the first fixed table 22, the first fixed table 22 is provided with the threaded rod 21 in rotating connection with the first fixed table 22, the threaded part of the threaded rod 21 is in threaded connection with the threaded hole formed in the first movable table 23, and the threaded rod 21 is perpendicular to the first fixed table 22;

as shown in fig. 3, a first loop bar 251 perpendicular to the second moving table 25 is arranged on the second moving table 25, a second loop bar 261 rotatably connected to the second fixed table 26 is arranged on the second fixed table 26 corresponding to the first loop bar 251, the second loop bar 261 is perpendicular to the second fixed table 26, an air bag 2511 is arranged in the first loop bar 251, and the second loop bar 261 is slidably sleeved with the first loop bar 251 and connected to the air bag 2511;

as shown in fig. 1, two groups of the bending needles 1 are symmetrically arranged by taking the threaded rod 21 as a symmetry axis, one end of each group of the bending needles 1 is connected with the first moving platform 23, one end of each group of the bending needles 1 is connected through a suture,

as shown in fig. 3, two sets of connection tubes 252 for two sets of clamping to cover the other end of the bending needle 1 are disposed on the second moving stage 25, and the air bag 2511 is communicated with the connection tubes 252 through a through tube disposed in the second moving stage 25; as shown in fig. 4, five sets of sealing plugs 2521 for sealing the through pipe are provided in the connecting pipe 252;

as shown in fig. 1, a set of connecting rods 221 is respectively disposed on the same side surface of the first moving stage 23 and the first fixed stage 22, one end of each of the two sets of connecting rods 221 is rotatably connected to the corresponding first moving stage 23 and the corresponding first fixed stage 22, and the other ends of the two sets of connecting rods 221 are rotatably connected to each other; the bottom ends of the first fixing table 22 and the second fixing table 26 are provided with pad tables 27.

The working method of the artificial lens suspension structure comprises the following steps:

firstly, two groups of bending needle heads 1 are connected through a suture, one end of the two groups of bending needle heads 1 which are arranged with two ends upward and penetrate through the suture is connected on a connecting block, then, the structure is arranged at the corresponding position of human eyes,

the second fixed platform 26 is placed on one side of the bridge of the nose to be fixed, then the threaded rod 21 is rotated, the first movable platform 23 moves leftwards under the movable connection of the threaded rod 21 and the first fixed platform 22, at the moment, the bent needle head 1 sequentially passes through one side of the eyeball, the fixing point of the artificial lens and the other side of the eyeball and is sleeved in the connecting pipe 252, and the bent needle head 1 is clamped and fixed inwards through the sealing plug 2521; meanwhile, the air bag 2511 communicated with the connecting tube 252 is communicated with the outside to exhaust air, so that the first loop bar 251 is sleeved on the second loop bar 261, the second moving table 25 is pulled to move towards the second fixed table 26 side to drive the bending needle 1 to move, the bending needle 1 is further pulled out from the eyeball, and finally, the suture is knotted and the structure is moved out.

Example 2

The present embodiment is further optimized based on embodiment 1, and further configured in that,

as shown in fig. 5 and 6, the air bag 2511 is of an annular structure, a gear 262 is arranged on the side surface of the second mobile station 25, the gear 262 penetrates through the second mobile station 25 through a shaft rod and extends into the first sleeve 251, a clamping groove is arranged on the end surface of the shaft rod located in the inner ring area of the air bag 2511, and a convex block clamped with the clamping groove is arranged on the end surface of the second sleeve 261 located in the inner ring area of the air bag 2511; the connecting pipes 252 are slidably clamped with the outer side surface of the second moving table 25, and two groups of the connecting pipes 252 are respectively provided with a group of racks 253, and the two groups of the racks 253 are centrosymmetric with the gear 262 and are in meshing transmission with the gear 262.

The working method of the above embodiment 2 is substantially the same as that of the embodiment 1, except that when the first loop bar 251 is sleeved on the second loop bar 261, the protrusion on the second loop bar 261 is engaged with the engaging groove on the first loop bar 251, and then the second loop bar 261 is rotated, the second loop bar 261 drives the gear 262 to rotate forward, the gear 262 drives the rack 253 to move toward the center, so that the two sets of connecting tubes 252 approach each other, the two sets of bending needles 1 are driven to move closer, and the suture carried by the bending needles 1 is knotted and moved out of the above structure.

Claims

1. An artificial lens suspension structure is characterized by comprising two groups of bending needles (1) for suspending an artificial lens and a telescopic mechanism (2),

the telescopic mechanism (2) comprises a second fixed station (26), a second movable station (25), a first movable station (23) and a first fixed station (22) which are sequentially arranged from left to right, two groups of fixed rods (24) are arranged between the second fixed station (26) and the second movable station (25), one ends of the two groups of fixed rods (24) are respectively and fixedly connected with two ends of the second fixed station (26), the other ends of the two groups of fixed rods (24) are respectively and fixedly connected with two ends of the first fixed station (22),

a second mobile station (25) parallel to the second fixed station is arranged on one side of the second fixed station (26), two ends of the second mobile station (25) are respectively connected with the corresponding fixed rods (24) in a sliding way, a first mobile station (23) parallel to the first fixed station is arranged on one side of the first fixed station (22), two ends of the first mobile station (23) are respectively connected with the corresponding fixed rods (24) in a sliding way,

the first fixed platform (22) is provided with a threaded rod (21) which is rotationally connected with the first fixed platform, the threaded part of the threaded rod (21) is in threaded connection with a threaded hole arranged on the first movable platform (23), the threaded rod (21) is vertical to the first fixed platform (22),

a first loop bar (251) which is vertical to the second mobile station (25) is arranged on the second mobile station (25), a second loop bar (261) which is rotationally connected with the second fixed station (26) is arranged on the second fixed station (26) which corresponds to the first loop bar (251), the second loop bar (261) is vertical to the second fixed station (26), an air bag (2511) is arranged in the first loop bar (251), the second loop bar (261) is sleeved with the first loop bar (251) in a sliding way and is connected with the air bag (2511),

the two groups of the bent needles (1) are symmetrically arranged by taking the threaded rod (21) as a symmetry axis, one ends of the two groups of the bent needles (1) are connected with the first mobile station (23), one ends of the two groups of the bent needles (1) are connected through a suture,

two groups of connecting pipes (252) used for clamping and sleeving the other ends of the bent needle heads (1) are arranged on the second moving table (25), and the air bag (2511) is communicated with the connecting pipes (252) through pipes arranged in the second moving table (25); a plurality of groups of sealing plug sheets (2521) for sealing the through pipe are arranged in the connecting pipe (252).

2. An intraocular lens suspension according to claim 1, characterized in that the air cell (2511) is an annular structure, the second mobile station (25) is provided with a gear (262) on its side, the gear (262) extends through the second mobile station (25) and into the first loop bar (251) via a shaft, the end of the shaft in the inner ring area of the air cell (2511) is provided with a locking slot, the end of the second loop bar (261) in the inner ring area of the air cell (2511) is provided with a projection for locking with the locking slot;

the connecting pipes (252) are connected with the outer side face of the second moving table (25) in a sliding clamping mode, a group of racks (253) are arranged on the two groups of connecting pipes (252) respectively, and the racks (253) are arranged in two groups and are in central symmetry with the gear (262) and are in meshing transmission with the gear (262).

3. The intraocular lens suspension according to claim 1, wherein a set of connecting rods (221) is provided on the same side of the first movable stage (23) and the first stationary stage (22), one end of each set of connecting rods (221) is rotatably connected to the corresponding first movable stage (23) and the corresponding first stationary stage (22), and the other ends of each set of connecting rods (221) are rotatably connected to each other.

4. An intraocular lens suspension according to claim 1, characterized in that the length of the curved needle (1) is 18-20 mm.

5. An intraocular lens suspension according to claim 1, characterized in that the bottom ends of the first fixation stage (22) and the second fixation stage (26) are provided with pad stages (27).