CN215503727U - Diplopore bag drag hook device - Google Patents

Diplopore bag drag hook device Download PDF

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Publication number
CN215503727U
CN215503727U CN202121131245.XU CN202121131245U CN215503727U CN 215503727 U CN215503727 U CN 215503727U CN 202121131245 U CN202121131245 U CN 202121131245U CN 215503727 U CN215503727 U CN 215503727U
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Prior art keywords
hook
unit
suture
hole
capsular bag
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CN202121131245.XU
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Chinese (zh)
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金海鹰
黄柳辉
姜春晖
杨帅
王方
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Shanghai Tenth Peoples Hospital
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Shanghai Tenth Peoples Hospital
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Abstract

The utility model relates to a diplopore bag draw hook device, which comprises a draw hook unit, wherein the draw hook unit is integrally formed and comprises a hook body element, and the first end of the hook body element and the second end of the hook body element are arranged in an arc shape; a connecting planar element connected to the first and second ends of the hook element; a through-hole element disposed through the connecting planar element. The draw hook has the advantages that a loop structure is formed by the through hole element at the first end of the draw hook unit and the suture unit, and the tightness is adjustable and smooth; the through hole element at the second end of the hook unit is connected with the other suture unit, so that the fixing stability of the intraocular lens at the horizontal position is improved, and the tension of the capsular sac at the equator part is increased, so that the suture unit is equivalent to a tension ring, but the suture unit is simpler in design, adjustable and lower in cost than the tension ring; the retractor unit does not need to penetrate the capsular sac of the equator part to manufacture a scleral flap, and solves the problems of insufficient fixation, insufficient slippage and large injury of the traditional intraocular lens.

Description

Diplopore bag drag hook device
Technical Field
The utility model relates to the technical field of sclera fixation, in particular to a double-hole capsular bag hook device.
Background
Various temporary or permanent intraocular capsular bag retractors or anchors hold the lens capsular bag in place at one end of the anterior capsular opening and at the other end of the anterior capsular opening in place between the scleral layers to reposition the subluxated lens or IOL capsular bag complex. A more representative permanent intraocular implantation capsular bag retractor comprises: an anchor type capsular retractor for scleral suture fixation of PMMA material designed by TonY and the like, a capsular retractor for nylon material fixed in biogel sclera designed by Jacob S and the like, a T type capsular retractor for polypropylene material fixed in scleral layer made by Yaguchi S and the like.
The traditional method for fixing the improved capsular tension ring by using a 10-0 polypropylene suture needs to penetrate out from the equator of the lens capsular bag at the dislocation and then pass through the sclera, so that the integrity of the capsular membrane at the equator is damaged, the capsular tearing risk and possibility are increased, and a scleral flap needs to be manufactured to complete the operation.
The T-shaped draw hook invented by Japanese scholars depends on the fixation under the scleral flap, the operation needs to be completed by cutting the conjunctiva and manufacturing the scleral flap, and the T-shaped draw hook is easy to rotate and shift when the sclera is fixed.
The Indian scholars use temporary capsular bag draw hooks to be permanently implanted into eyes and use biological glue to fix the capsular bag draw hooks under a scleral flap, and the Indian scholars are beyond approved marks and need to cut a conjunctiva and make the scleral flap to complete the operation.
At present, aiming at the problems of large surgical wound, large-scale cutting of conjunctiva and preparation of a scleral flap existing in the related technology; the postoperative complication such as the exposed knot and the shedding is easy to happen, and an effective solution is not provided.
Disclosure of Invention
The utility model aims to provide a single-hole capsular bag retractor device aiming at the defects in the prior art, so as to solve the problems of large surgical wound, large-scale conjunctiva cutting and scleral flap manufacturing in the related art; the postoperative complication such as the exposed knot and the shedding is easy to occur.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a dual-aperture capsular bag retractor device comprising:
a hook unit, hook unit integrated into one piece, the hook unit includes:
the hook body element is arranged between the first end of the hook body element and the second end of the hook body element in an arc shape;
a connecting planar element connected to the first and second ends of the hook element;
a via element disposed through the connecting planar element.
In some of these embodiments, the hook elements are J-shaped or U-shaped.
In some of these embodiments, the connecting planar element is pivotally connected to an end of the hook element.
In some of these embodiments, the diameter of the through-hole element is greater than the diameter of the hook element.
In some of these embodiments, the hook element comprises:
a first hook body;
the second hook body is arc-shaped, and the first end of the second hook body is connected with the second end of the first hook body;
a third hook, a first end of the third hook being connected to a second end of the second hook;
wherein the connecting planar element is disposed at a first end of the first hook and a second end of the third hook.
In some of these embodiments, the connecting planar element comprises:
a first connection plane disposed at a first end of the first hook body;
a second connection plane disposed at a second end of the third hook body;
the via member includes:
a first through hole disposed through the first connection plane;
and the second through hole penetrates through the second connecting plane.
In some of these embodiments, the diameter of the first hook, the diameter of the second hook, and the diameter of the third hook are equal.
In some of these embodiments, the diameter of the through-hole element is greater than the diameter of the first hook.
In some of these embodiments, the second hook body has a width of 0.3mm or less.
In some of these embodiments, the length of the first hook is greater than the length of the third hook.
In some of these embodiments, the difference between the length of the first hook and the length of the third hook is at least 0.5 mm.
In some of these embodiments, the first end of the first hook is 3.0mm from the distal-most end of the second hook.
In some of these embodiments, the second end of the third hook is 2.5mm from the distal-most end of the second hook.
In some of these embodiments, the maximum width of the connecting planar element is 0.5 mm.
In some of these embodiments, the connecting planar element is circular.
In some of these embodiments, further comprising:
and the suture unit is detachably connected with the hook unit through the through hole element.
In some of these embodiments, the suture unit has a diameter less than the diameter of the through-hole element.
In some of these embodiments, the suture unit has a diameter less than the diameter of the hook element.
In some of these embodiments, further comprising:
the threading unit is detachably connected with the suture unit and is used for driving one end of the suture unit to pass through the through hole element;
a needle unit connected with one end of the suture unit.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical effects:
according to the double-hole bag retractor device, the through hole element at the first end of the retractor unit can form a lantern ring structure with a suture unit, and the tightness is adjustable and smooth; the through hole element at the second end of the hook unit can be connected with another suture unit, so that the fixing stability of the intraocular lens at the horizontal position is improved, and the tension of the capsular sac at the equator part is improved, so that the suture unit is equivalent to a tension ring, namely, the second through hole in the capsular sac is connected with a smooth polypropylene suture, the function of supporting the capsular sac on the horizontal plane of the capsular sac is achieved, the position of the intraocular lens in the capsular sac is stabilized, the suture unit is equivalent to a traditional capsular tension ring, but the design is simpler, adjustable and lower in cost compared with the traditional capsular tension ring; in addition, the retractor unit does not need to penetrate through the capsular sac at the equator part to manufacture a scleral flap, and the problems of insufficient fixation, insufficient slippage and large injury of the traditional intraocular lens are solved.
Drawings
FIG. 1 is a schematic view of a dual aperture capsular bag retractor device according to one embodiment of the present invention;
FIG. 2 is a schematic view of a retractor unit according to one embodiment of the utility model;
FIG. 3 is a schematic diagram of a use state (one) according to one embodiment of the present invention;
fig. 4 is a schematic diagram of a use state according to an embodiment of the present invention (two).
Wherein the reference numerals are: 100. a hook unit; 110. a hook element; 111. a first hook body; 112. a second hook body; 113. a third hook body; 120. connecting the planar elements; 121. a first connection plane; 122. a second connection plane; 130. a through-hole element; 131. a first through hole; 132. a second via.
200. A suture unit;
300. a threading unit;
400. a needle unit;
A. an anterior capsule membrane; B. the posterior capsule.
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.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The utility model is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
An exemplary embodiment of the present invention, as shown in fig. 1, is a hook unit 100 for a double-hole capsular bag, the hook unit 100 includes a hook body member 110, a connection plane member 120 and a through hole member 130, wherein the connection plane member 120 is connected to at least one end of the hook body member 110, and the through hole member 130 is disposed through the connection plane member 120.
In which the retractor unit 100 is integrally formed.
Wherein the retractor unit 100 is made of 4-0 polypropylene suture.
As shown in fig. 2, the hook member 110 includes a first hook 111, a second hook 112, and a third hook 113, wherein the hook member 110 is integrally formed, a first end of the second hook 112 is connected to a second end of the first hook 111, and a first end of the third hook 113 is connected to a second end of the second hook 112.
The first hook 111 is a linear structure, the second hook 112 is an arc structure, and the third hook 113 is a linear structure.
The first hook 111 and the third hook 113 may be parallel or non-parallel.
The diameter of the first hook 111, the diameter of the second hook 112, and the diameter of the third hook 113 are equal.
In some embodiments, the arc center angle of the second hook 112 is an obtuse angle, which is greater than 90 ° and equal to or less than 180 °.
Wherein the length of the first hook 111 is greater than the length of the third hook 113.
In some of these embodiments, the difference between the length of the first hook 111 and the length of the third hook 113 is at least 0.5 mm.
In some of these embodiments, the distance between the first end of the first hook 111 and the most distal end of the second hook 112 is 3.0 mm.
In some of these embodiments, the distance between the second end of the third hook 113 and the most distal end of the second hook 112 is 2.5 mm.
Wherein, the width of the second hook body 112 is less than or equal to 0.3 mm.
In some embodiments, the second hook 112 has a width of 0.1mm to 0.2 mm.
In some of these embodiments, the second hook body 112 has a width of 0.2 mm.
As shown in fig. 2, the connection plane member 120 includes a first connection plane 121 and a second connection plane 122, wherein the first connection plane 121 is disposed at the first end of the first hook 111, and the first connection plane 121 is rotatably connected with the first end of the first hook 111; the second connecting plane 122 is disposed at the second end of the third hook 113, and the second connecting plane 122 is rotatably connected to one end of the third hook 113.
The first connection plane 121 and the second connection plane 122 are circular.
The maximum width (maximum outer diameter) of the first connection plane 121 and the maximum width (maximum outer diameter) of the second connection plane 122 are 0.5 mm.
Wherein the diameters of the first and second connection planes 121 and 122 are larger than the diameter of the hook member 110, that is, the diameter of the first connection plane 121 is larger than the diameter of the first hook 111, and the diameter of the second connection plane 122 is larger than the diameter of the third hook 113.
Since the retractor unit 100 is made of 4-0 polypropylene suture, the retractor unit 100 is flexible and can be bent, folded, etc. That is, the first connection plane 121 can rotate with the connection point between the first connection plane 121 and the first hook 111, so that the first connection plane 121 and the first hook 111 can present various forms; the second connecting plane 122 can rotate at the connecting point with the third hook 113, so that the second connecting plane 122 and the third hook 113 can present various forms.
The through hole element 130 includes a first through hole 131 and a second through hole 132, wherein the first through hole 131 and the first connection plane 121 are disposed in a concentric circle, and the second through hole 132 and the second connection plane 122 are disposed in a concentric circle.
Wherein, the diameter of the first and second through holes 131 and 132 is larger than that of the hook element 110, that is, the diameter of the first through hole 131 is larger than that of the first hook 111, and the diameter of the second through hole 132 is larger than that of the third hook 113.
Further, as shown in fig. 1, the dual pocket retractor device further includes a suture unit 200, and the suture unit 200 is detachably connected to the retractor unit 100 through the pass-through member 130. Specifically, one end of the suture unit 200 is detachably coupled to the hook member 110 after passing through the through-hole member 130.
Wherein the diameter of the suture unit 200 is smaller than the diameter of the through-hole element 130.
Wherein the suture unit 200 is an 8-0 polypropylene suture.
Further, as shown in fig. 1, the dual pocket retractor device further includes a threading unit 300, and the threading unit 300 is detachably coupled to the suture unit 200 for driving one end of the suture unit 200 through the through-hole member 130.
Wherein the threading unit 300 is a medical forceps.
In some of these embodiments, threading unit 300 is a 23G internal limiting membrane forceps.
Further, as shown in fig. 1, the double-hole capsular bag retractor device further includes a needle unit 400, and the needle unit 400 is detachably coupled to one end of the suture unit 200 to drive the suture unit 200 through the scleral layer.
Among them, the needle unit 400 is a medical needle.
In some of these embodiments, the needle unit 400 is a 30G needle.
The using method of the utility model is as follows:
the threading unit 300 is used to thread the first suture unit 200 into the first through hole 131 of the hook unit 100 and thread the second suture unit 200 into the second through hole 132 of the hook unit 100;
using the needle unit 400 to drive the first suture unit 200 to pass through the scleral layer, wherein one end of the suture unit 200 connected with the needle unit 400 is exposed outside the sclera, and the other end of the suture unit 200 is closed and the annular coil is exposed outside the eye through the corneal incision;
the second suture unit 200 (the suture unit 200 is a polypropylene suture with two blunt ends) is connected with the second through hole 132 in the capsular bag, which plays a role of supporting the capsular sac at the level of the capsular bag and stabilizing the position of the intraocular lens in the capsular bag, as shown in fig. 3 to 4, and in addition, the length of the suture unit 200 can be designed according to the dislocation range of the intraocular lens or the loose range of the capsular bag;
generally, 3 to 4 hook units 100 and suture units 200 connected to the hook units 100 are placed in the pouch.
Compared with the prior art, the problem that the traditional capsular tension ring needs to penetrate through the capsular sac at the equator part to manufacture a scleral flap is solved, the problems that the traditional intraocular lens is not fixed stably enough, slips and is damaged greatly are solved, and the problems that a knot formed by a 4-0 polypropylene suture is thicker than an 8-0 polypropylene suture, the thread damage caused by the thread passing between scleral layers is larger than the 8-0 suture, and the risk of exposing the knot is large are solved.
The utility model has the advantages that the hook is realized by the lantern ring between the first through hole of the hook unit and the suture unit, the tightness is adjustable, the hook is smooth, and the friction force is small; the second through hole through the drag hook unit is connected with another suture unit, increase intraocular lens and at the fixed stability of level position, increase the tension of cyst membrane at the equator portion, make this suture unit be equivalent to the tension ring, be located a smooth polypropylene suture of second through hole connection in the capsular bag promptly, play the effect of supporting the cyst membrane on the capsular bag horizontal plane, stabilize intraocular lens in the position in the capsular bag, be equivalent to traditional capsular bag tension ring, but than traditional capsular bag tension ring design simpler, adjustable, with low costs.
The preparation method of the single-hole bag retractor comprises but is not limited to a 3D printing method, a die casting method and an electrocoagulation method.
In this example, an electrocoagulation method will be described as an example.
The preparation method of the drag hook unit of the double-hole bag drag hook device comprises the following steps:
selecting a 4-0 medical polypropylene suture;
bending the tail of the 4-0 medical polypropylene suture into an arc shape, reserving a U-shaped top end with the diameter of 2mm, burning the U-shaped top end by using a condenser from far (10mm) to near (2mm), and shaping within 3-5 s;
burning the suture at one side of the longer end and the suture at one side of the shorter end by using a condenser, and immediately clamping the tips of the two ends into a round end by using a needle holder or a Venturi clamp after the tips of the two ends are in a rivet shape;
the 4-0 capsular bag tension hook (i.e., the hook unit) can be formed by puncturing the centers of the two circular ends with a 1ml needle to form circular holes, respectively.
Correspondingly, the specific use method of the double-hole bag retractor device is as follows:
using 23G internal limiting membrane forceps (namely a threading unit) to thread an 8-0 polypropylene suture (a suture unit) into a circular hole in the center of the circular end of the 4-0 capsular bag tension hook;
the 8-0 polypropylene suture passes through the scleral layer through a 30G needle (needle unit), one end of the needle is exposed outside the sclera, and the other end of the needle is closed and a ring-shaped coil is exposed outside the eye through a corneal incision;
the connection between the 4-0 bag tension hook and the 8-0 polypropylene needle-thread is realized by a 8-0 polypropylene thread lantern ring through a round hole at the tail end of the 4-0 bag tension hook, and the tightness of the lantern ring between the 4-0 bag tension hook and the 8-0 polypropylene needle-thread is adjustable and smooth;
the circular hole in the capsular bag can be connected with a smooth polypropylene suture, the effect of supporting the capsular sac on the horizontal plane of the capsular bag is achieved, the position of the intraocular lens in the capsular bag is stabilized, the intraocular lens is equivalent to a traditional capsular bag tension ring, but the intraocular lens is simpler in design, adjustable and lower in cost compared with the traditional capsular bag tension ring;
the 4-0 capsular tension hook and attached 8-0 polypropylene suture are then formed into a lens or iol capsular bag complex without scleral flap scleral immobilisation dislocation.
For the specific preparation method and implementation method, the advantages are as follows:
(1) 4-0 polypropylene suture with high strength is adopted as a capsular bag drag hook to fix the capsular bag, so that the re-dislocation caused by suture fracture is avoided;
(2) the method is characterized in that a holed capsular retractor is designed by using a 4-0 polypropylene suture for the first time, and the 4-0 capsular retractor and the 8-0 polypropylene suture are ingeniously connected in a lantern ring mode, so that the problems that a traditional capsular tension ring needs to penetrate through an equatorial capsular sac and a sclera and a scleral flap is manufactured are solved, the technical problem that the capsular sac is not stable enough when being drawn by the 8-0 and 10-0 retractors is solved, and the technical problems that a knot formed by the 4-0 polypropylene suture is thicker than the 8-0 polypropylene suture, the 4-0 suture which is firmly penetrated between scleral layers is damaged greatly than the 8-0 suture, and the risk of exposing the knot is large are solved;
(3) the conjunctiva does not need to be cut and the scleral flap does not need to be made, thereby shortening the operation time and lightening the operation injury;
(4) the double-line knot in the sclera can be fixed through the double-sack drag hook, so that the incidence rate of postoperative line knot exposure and re-dislocation is reduced;
(5) the second through hole of the double-bag draw hook is connected with the suture, so that the fixing stability of the intraocular lens at the horizontal position is improved, and the tension of the capsular bag at the equator part is improved, so that the suture is equivalent to a tension ring, namely the second through hole in the capsular bag is connected with a smooth polypropylene suture, the effect of supporting the capsular bag on the horizontal plane of the capsular bag is achieved, the position of the intraocular lens in the capsular bag is stabilized, the suture is equivalent to a traditional capsular bag tension ring, but the design is simpler, adjustable and lower in cost compared with the traditional capsular bag tension ring;
(6) can be widely applied to the treatment of dislocation of crystalline lens and artificial crystalline lens and has wide clinical application prospect.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims (10)

1. A double-hole capsular bag retractor device is characterized by comprising:
a hook unit, hook unit integrated into one piece, the hook unit includes:
the hook body element is arranged between the first end of the hook body element and the second end of the hook body element in an arc shape;
a connecting planar element connected to the first and second ends of the hook element;
a via element disposed through the connecting planar element.
2. The dual aperture capsular bag retractor device of claim 1 wherein the connecting planar member is pivotally connected to the hook member at the first and second ends thereof.
3. The dual pocket retractor device of claim 1 wherein the diameter of the thru-hole member is greater than the diameter of the hook member.
4. The dual aperture capsular bag retractor device of claim 1 wherein the hook member comprises:
a first hook body;
the second hook body is arc-shaped, and the first end of the second hook body is connected with the second end of the first hook body;
a third hook, a first end of the third hook being connected to a second end of the second hook;
wherein the connecting planar element is disposed at a first end of the first hook and a second end of the third hook.
5. The dual aperture capsular bag retractor device of claim 4 wherein the second hook body has a width of 0.3mm or less.
6. The dual aperture capsular bag retractor device of claim 4 wherein the first hook has a length greater than the length of the third hook.
7. The dual aperture capsular bag retractor device of claim 1 wherein the connecting planar member comprises:
a first connection plane connected to a first end of the hook element;
a second connection plane connected to a second end of the hook element;
the via member includes:
a first through hole disposed through the first connection plane;
and the second through hole penetrates through the second connecting plane.
8. The dual port capsular bag retractor device of claim 1 further comprising:
and the suture unit is detachably connected with the hook unit through the through hole element.
9. The dual aperture capsular bag retractor device of claim 8 wherein the diameter of the suture unit is less than the diameter of the hook member.
10. The dual port capsular bag retractor device of claim 8 further comprising:
the threading unit is detachably connected with the suture unit and is used for driving one end of the suture unit to pass through the through hole element;
a needle unit connected with one end of the suture unit.
CN202121131245.XU 2021-05-25 2021-05-25 Diplopore bag drag hook device Active CN215503727U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121131245.XU CN215503727U (en) 2021-05-25 2021-05-25 Diplopore bag drag hook device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121131245.XU CN215503727U (en) 2021-05-25 2021-05-25 Diplopore bag drag hook device

Publications (1)

Publication Number Publication Date
CN215503727U true CN215503727U (en) 2022-01-14

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