CN113244020B

CN113244020B - Preparation method of double-hole bag drag hook

Info

Publication number: CN113244020B
Application number: CN202110571724.1A
Authority: CN
Inventors: 金海鹰; 黄柳辉; 姜春晖; 杨帅; 王方
Original assignee: Shanghai Tenth Peoples Hospital
Current assignee: Shanghai Tenth Peoples Hospital
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2023-10-24
Anticipated expiration: 2041-05-25
Also published as: CN113244020A

Abstract

The invention relates to a double-hole bag drag hook and a preparation method thereof, wherein the preparation method comprises the following steps: bending the suture to form an arcuate end of the suture; heating the arcuate end to shape the arcuate end; heating the first end of the suture and the second end of the suture such that the first end of the suture forms a rounded-off end and the second end of the suture forms a rounded-off end; respectively clamping the round and blunt ends to form round ends at the round and blunt ends; the circular ends are pierced respectively so that the circular ends form through holes. The double Kong Nangdai draw hook has the advantages that a through hole and a suture form a loop structure, and the tightness is adjustable and smooth; the other through hole of the double Kong Nangdai drag hook is connected with the other suture, so that the fixation stability of the intraocular lens in the horizontal position is improved, the tension of the capsule at the equatorial part is increased, the suture is equivalent to a tension ring, but the suture is simpler, adjustable and low in cost than the tension ring; the double Kong Nangdai drag hook does not need to penetrate through the equatorial capsule to manufacture sclera flap, thus solving the problems of unstable fixation, slipping and great damage of the intraocular lens.

Description

Preparation method of double-hole bag drag hook

Technical Field

The invention relates to the technical field of scleral fixation, in particular to a double-hole capsular bag retractor and a preparation method thereof.

Background

Various temporary or permanent intraocular implanted capsular bag retractors or anchors are supported at one end below the anterior capsular opening to secure the capsular bag and at one end between the scleral layers to reposition the subluxated lens or the capsular bag complex. A more representative permanent intraocular implant capsular bag retractor comprises: an anchor-type capsular bag retractor for fixing a scleral suture of PMMA material designed by Tony and the like, a capsular bag retractor of nylon material fixed in a bio-gel sclera designed by Jacob S and the like, a T-type capsular bag retractor of polypropylene material fixed in a scleral interlayer manufactured by Yaguchi S and the like.

The traditional scheme is that a method for fixing and improving a bag tension ring by using 10-0 polypropylene suture lines needs to pass through the equator part of the lens bag at the dislocation position and then pass through the sclera, so that the integrity of the envelope of the equator part is damaged, the risk and possibility of tearing the bag are increased, and a scleral flap is required to be manufactured to complete an operation.

The T-shaped retractor invented by Japanese scholars depends on the fixation under the sclera flap, the conjunctiva is needed to be cut off and the sclera flap is manufactured to complete the operation, and the T-shaped retractor is easy to rotate and shift when the sclera is fixed.

Indian students use temporary capsular bag retractor to permanently implant into eyes, use biological glue to fix the retractor under sclera flap, and use the retractor beyond approval mark, and need to cut conjunctiva and make sclera flap to complete operation.

Aiming at the problems of large surgical trauma and large requirement of cutting conjunctiva and manufacturing scleral flap in a large range in the related technology at present; the problems of knot exposure, re-falling and other complications easily occur after operation, and no effective solution has been proposed yet.

Disclosure of Invention

The invention aims at overcoming the defects in the prior art, and provides a double-hole bag drag hook device which is used for solving the problems that the operation wound is large, the conjunctiva needs to be cut off in a large range and scleral flap is manufactured in the related art; the postoperative complications such as knot exposure, re-falling off and the like are easy to occur.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

in a first aspect, a method for manufacturing a double-hole capsular bag retractor is provided, comprising:

bending the suture to form an arcuate end of the suture;

heating the curved end to shape the curved end;

heating the first end of the suture and the second end of the suture to form a rounded-off end at the first end of the suture and a rounded-off end at the second end of the suture;

respectively clamping the round and blunt ends to form round ends;

and piercing the circular ends respectively so that the circular ends form through holes.

In some of these embodiments, the distance between the first end of the suture and the distal-most end of the arcuate end is greater than the distance between the second end of the suture and the distal-most end of the arcuate end.

In some of these embodiments, the diameter of the through hole is greater than the diameter of the suture.

In some of these embodiments, heating the arcuate end comprises:

and (3) cauterizing the arc-shaped end for 3-5s by using an electric coagulator.

In some of these embodiments, heating the first end of the suture and the second end of the suture comprises:

an electrocoagulator is used to cauterize the first end of the suture and the second end of the suture.

In some of these embodiments, clamping the rounded ends, respectively, includes:

the rounded ends will be held by needle holders or venturi clamps, respectively.

In some of these embodiments, piercing the rounded ends, respectively, includes:

the centers of the circular ends are respectively pierced with needles.

In a second aspect, a dual-hole pouch retractor is provided, dual-hole pouch retractor integrated into one piece, dual-hole pouch retractor includes:

the hook body is arranged in an arc shape between the first end of the hook body and the second end of the hook body;

the connecting end is connected with the first end and the second end of the hook body;

and the through hole penetrates through the connecting end.

In some of these embodiments, the hook body is J-shaped or U-shaped.

In some of these embodiments, the connecting end is rotatably connected to one end of the hook body.

In some of these embodiments, the diameter of the through hole is greater than the diameter of the hook body.

In some of these embodiments, the hook body comprises:

a first hook body;

the first end of the second hook body is connected with the second end of the first hook body;

the first end of the third hook body is connected with the second end of the second hook body;

the connecting end is arranged at the first end of the first hook body and the second end of the third hook body.

In some of these embodiments, the connection end includes:

the first connecting end is arranged at the first end of the first hook body;

the second connecting end is arranged at the second end of the third hook body;

the through hole includes:

the first through hole penetrates through the first connecting end;

the second through hole penetrates through the second connecting end.

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 is greater than the diameter of the first hook.

In some embodiments, the width of the second hook body is less than or equal to 0.3mm.

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 in length of the first hook and the third hook is at least 0.5mm.

In some of these embodiments, the first end of the first hook body is 3.0mm from the distal-most end of the second hook body.

In some of these embodiments, the second end of the third hook is a linear distance of 2.5mm from the distal-most end of the second hook.

In some of these embodiments, the maximum width of the connecting end is 0.5mm.

In some of these embodiments, the connecting end is rounded.

In a third aspect, a dual-hole pouch retractor assembly is provided, comprising:

a double Kong Nangdai retractor as described above;

and the suture is detachably connected with the double-hole bag drag hook through the through hole.

In some of these embodiments, the diameter of the suture is less than the diameter of the through hole.

In some of these embodiments, the suture has a diameter that is less than the diameter of the hook body.

In some of these embodiments, further comprising:

the threading device is detachably connected with the suture and used for driving one end of the suture to pass through the through hole;

and a needle connected to one end of the suture.

Compared with the prior art, the invention has the following technical effects:

according to the double-hole bag drag hook and the preparation method thereof, a loop structure is formed by the through hole of the double-bag drag hook and a suture, and the tightness is adjustable and smooth; the other through hole of the double-capsular bag drag hook is connected with the other suture line, so that the fixation stability of the intraocular lens at the horizontal position is improved, the tension of the capsular bag at the equatorial part is increased, the suture line is equivalent to a tension ring, namely, the through hole in the capsular bag is connected with a smooth polypropylene suture line, the effect of supporting the capsular bag is achieved on the horizontal plane of the capsular bag, the position of the intraocular lens in the capsular bag is stabilized, and the intraocular lens is equivalent to a traditional capsular bag tension ring, but is simpler, adjustable, low in cost and light in weight than the traditional capsular bag tension ring; in addition, the double-sac retractor does not need to penetrate through the equatorial capsule to manufacture scleral flap, so that the problems of insufficient stability, slipping and great damage of the traditional intraocular lens are solved.

Drawings

FIG. 1 is a schematic diagram of a double Kong Nangdai retractor in accordance with one embodiment of the invention;

FIG. 2 is a schematic view of a dual hole pocket retractor assembly according to one embodiment of the present invention;

FIG. 3 is a schematic view (one) of a usage state according to an embodiment of the present invention;

fig. 4 is a schematic view of a use state (two) according to an embodiment of the present invention.

Wherein the reference numerals are as follows: 100. a double Kong Nangdai drag hook; 110. a hook body; 111. a first hook body; 112. a second hook body; 113. a third hook body; 120. a connection end; 121. a first connection end; 122. a second connection end; 130. a through hole; 131. a first through hole; 132. and a second through hole.

200. A suture;

300. a threader;

400. a needle;

A. anterior capsule; B. posterior capsule.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.

Example 1

This embodiment relates to a method for manufacturing a double Kong Nangdai retractor of the invention.

The invention relates to a preparation method of a double-hole bag drag hook, which comprises the following steps:

step S102, bending the suture to form an arc-shaped end of the suture;

step S104, heating the arc-shaped end to shape the arc-shaped end;

step S106, heating the first end of the suture and the second end of the suture to enable the first end of the suture to form a round blunt end and the second end of the suture to form a round blunt end;

step S108, respectively clamping the round and blunt ends to form round ends;

step S110, the round ends are respectively pierced so that through holes are formed in the round ends.

In step S104, heating the arc end includes:

In step S106, heating the first end of the suture and the second end of the suture includes:

the first end of the suture is cauterized using an electrocoagulator.

In step S108, the clamping of the rounded ends respectively includes:

the rounded ends are held by needle holders or venturi clamps, respectively.

In step S110, piercing the rounded ends, respectively, includes:

the centers of the circular ends are respectively pierced with needles.

Wherein the suture is a 4-0 polypropylene suture.

Wherein the distance between the first end of the suture and the distal-most end of the arcuate end is greater than the distance between the second end of the suture and the distal-most end of the arcuate end.

Wherein the diameter of the through hole is larger than the diameter of the suture.

The specific preparation method of the double Kong Nangdai drag hook comprises the following steps:

selecting a 4-0 medical polypropylene suture;

bending the tail of a 4-0 medical polypropylene suture into an arc shape, leaving a U-shaped top end of 2mm, and cauterizing the U-shaped top end from a far (10 mm) end and a near (2 mm) end by an electric coagulator for 3-5s to form a shape;

the suture on the longer end side and the suture on the shorter end side are cauterized by an electric coagulator, so that the pointed ends of the two ends are in a rivet shape, and then the melted pointed ends of the rivet shape are immediately clamped into round ends by a needle holder or a text clamp;

the centers of the two round ends are respectively penetrated by a 1ml needle to form round holes respectively, thus forming 4-0 capsular tension hook.

The embodiment has the advantages of simple operation, short preparation time and rapid acquisition of the double-hole bag drag hook; the length of the double Kong Nangdai drag hook can be finely adjusted according to the illness state of different patients, and the application range is wide.

Example 2

This example relates to a double Kong Nangdai retractor of the invention made by the manufacturing method of example 1.

In an exemplary embodiment of the present invention, as shown in fig. 1, a double-hole pouch retractor 100 includes a hook body 110, a connection end 120, and a through hole 130, wherein the connection end 120 is connected with at least one end of the hook body 110, and the through hole 130 is disposed through the connection end 120.

Wherein, the double Kong Nangdai drag hook 100 is integrally formed.

Wherein the double Kong Nangdai retractor 100 is made of 4-0 polypropylene suture.

As shown in fig. 2, the hook body 110 includes a first hook body 111, a second hook body 112, and a third hook body 113, wherein the hook body 110 is integrally formed, a first end of the second hook body 112 is connected with a second end of the first hook body 111, and a first end of the third hook body 113 is connected with a second end of the second hook body 112.

The first hook 111 has a linear structure, the second hook 112 has an arc structure, and the third hook 113 has a linear structure.

The first hook 111 and the third hook 113 may be parallel or non-parallel.

Wherein 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 of these embodiments, the arc center angle of the second hook 112 is an obtuse angle, which is greater than 90 ° and less than or equal to 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 0.5mm.

In some of these embodiments, the distance between the first end of the first hook 111 and the distal-most end of the second hook 112 is 3.0mm.

In some of these embodiments, the distance between the second end of the third hook 113 and the distal-most end of the second hook 112 is 2.5mm.

Wherein the width of the second hook 112 is less than or equal to 0.3mm.

In some of these embodiments, the width of the second hook 112 is 0.1mm to 0.2mm.

In some of these embodiments, the width of the second hook 112 is 0.2mm.

As shown in fig. 1, the connection end 120 includes a first connection end 121 and a second connection end 122, wherein the first connection end 121 is disposed at a first end of the first hook 111, and the first connection end 121 is rotatably connected with the first end of the first hook 111; the second connecting end 122 is disposed at the second end of the third hook 113, and the second connecting end 122 is rotatably connected to one end of the third hook 113.

The first connecting end 121 and the second connecting end 122 are both circular.

Wherein, the maximum width (maximum outer diameter) of the first connecting end 121 and the maximum width (maximum outer diameter) of the second connecting end 122 are 0.5mm.

Wherein, the diameters of the first connecting end 121 and the second connecting end 122 are larger than the diameter of the hook body 110, that is, the diameter of the first connecting end 121 is larger than the diameter of the first hook body 111, and the diameter of the second connecting end 122 is larger than the diameter of the third hook body 113.

Because the double Kong Nangdai draw hook 100 is made of 4-0 polypropylene suture, the double Kong Nangdai draw hook 100 is soft and can perform bending, folding and other actions. That is, the first connecting end 121 can rotate at the connection point with the first hook 111, so that the first connecting end 121 and the first hook 111 can take on various forms; the second connecting end 122 can rotate at the connection point with the third hook 113, so that the second connecting end 122 and the third hook 113 can take on various forms.

The through hole 130 includes a first through hole 131 and a second through hole 132, wherein the first through hole 131 and the first connection end 121 are disposed in concentric circles, and the second through hole 132 and the second connection end 122 are disposed in concentric circles.

The diameters of the first through hole 131 and the second through hole 132 are larger than the diameter of the hook body 110, that is, the diameter of the first through hole 131 is larger than the diameter of the first hook body 111, and the diameter of the second through hole 132 is larger than the diameter of the third hook body 113.

The invention has the advantages that:

(1) 4-0 polypropylene suture with larger strength is adopted as a bag drag hook to fix a capsule membrane, so that the suture is prevented from breaking to cause dislocation again;

(2) The method has the advantages that the 4-0 polypropylene suture is used for designing the Kong Nangdai drag hook for the first time, the 4-0 bag drag hook is skillfully connected with the 8-0 polypropylene suture in a loop mode, the problems that a traditional bag tension loop needs to penetrate through the equatorial capsule membrane and the sclera and a sclera flap is manufactured are solved, the technical problems that the 8-0 drag hook and the 10-0 drag hook are not stable enough to pull the capsule membrane are solved, 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 is damaged by penetrating between sclera layers and is larger than the 8-0 suture, and the risk of knot exposure is large are solved;

(3) The conjunctiva does not need to be cut off and the sclera flap is manufactured, so that the operation time is shortened and the operation damage is lightened;

(4) The fixation of the double-line knot in the sclera can be realized through the double Kong Nangdai drag hook, so that the incidence rate of postoperative line knot exposure and dislocation again is reduced;

(5) The second through hole of the double-capsular drag hook is connected with the suture, so that the fixation stability of the intraocular lens at the horizontal position is improved, the tension of the capsular membrane at the equatorial part is increased, 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 function of supporting the capsular membrane is achieved on the horizontal plane of the capsular bag, the position of the intraocular lens in the capsular bag is stabilized, and the intraocular lens is equivalent to a traditional capsular tension ring, but is simpler, adjustable and low in cost than the traditional capsular tension ring;

(6) Can be widely applied to the treatment of dislocation of crystalline lens and intraocular lens and has wide clinical application prospect.

Example 3

This embodiment relates to a double hole capsular bag retractor assembly of the present invention comprising a double Kong Nangdai retractor as described in embodiment 2.

As shown in fig. 2, the double-hole pouch retractor device includes a double Kong Nangdai retractor 100, a suture 200, a threader 300, and a needle 400.

The suture 200 is detachably connected to the double Kong Nangdai retractor 100 through the through hole 130. Specifically, one end of the suture 200 is detachably coupled to the hook body 110 after passing through the through-hole 130.

Wherein the diameter of suture 200 is smaller than the diameter of through-hole 130.

Wherein the suture 200 is an 8-0 polypropylene suture.

The threader 300 is detachably connected to the suture 200 for driving one end of the suture 200 through the through-hole 130.

Wherein the threader 300 is a medical tweezer.

In some of these embodiments, threader 300 is a 23G endomembrane forceps.

The needle 400 is detachably connected to one end of the suture 200 to drive the suture 200 through the scleral interlayer.

Wherein the needle 400 is a medical needle.

In some of these embodiments, needle 400 is a 30G needle.

The application method of the invention is as follows:

threading device 300 is used to thread a first suture 200 into a first through hole 131 of double Kong Nangdai retractor 100 and a second suture 200 into a second through hole 132 of double Kong Nangdai retractor 100;

the needle 400 is used to drive the first suture 200 to pass through the scleral interlayer, one end of the suture 200 connected with the needle 400 is exposed outside the sclera, and the other end of the suture 200 is closed to form an annular coil and exposed outside the eye through the cornea incision;

the second suture 200 (the suture 200 is polypropylene suture with both ends rounded) is connected with the hole in the capsular bag, and plays a role of supporting the capsular bag on the level of the capsular bag to stabilize the position of the intraocular lens in the capsular bag, as shown in fig. 3-4, and in addition, the length of the suture 200 can be designed according to the dislocation range of the intraocular lens or the relaxation range of the capsular bag;

generally, 3-4 double Kong Nangdai hooks 100 and sutures 200 attached to the double Kong Nangdai hooks 100 need to be placed within the pocket.

Compared with the related art, the problem that the traditional capsular tension ring needs to penetrate through the equatorial capsule to manufacture the sclera flap is solved, the problems that the traditional artificial lens is not stable enough to fix, slips and is large in damage are solved, and the problems that the knot formed by the 4-0 polypropylene suture is thicker than the 8-0 polypropylene suture, the damage of the 4-0 suture is larger than the 8-0 suture when the suture is penetrated between sclera layers, and the risk of knot exposure is large are solved.

The invention has the advantages that the double-bag retractor is realized through the lantern ring between the first through hole of the double-bag retractor and a suture, and the double-bag retractor is adjustable in tightness, smooth and small in friction force; the second through hole through the double-capsular bag drag hook is connected with another suture, the fixation stability of the intraocular lens at the horizontal position is increased, the tension of the capsule at the equatorial portion is increased, 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 capsule is achieved on the horizontal plane of the capsular bag, the position of the intraocular lens in the capsular bag is stabilized, and the intraocular lens is equivalent to a traditional capsular bag tension ring, but is simpler, adjustable, low in cost and light in weight than the traditional capsular bag tension ring.

The specific use method of the double-hole bag drag hook device comprises the following steps:

penetrating an 8-0 polypropylene suture (thread) into a round hole in the center of the round end of the 4-0 capsular bag tension hook by using 23G inner limiting membrane forceps (i.e. a threader);

8-0 polypropylene suture passes through the scleral interlayer by a 30G needle (needle), one end with the needle is exposed outside the sclera, and the other end of the needle is closed, and the annular coil is exposed outside the eye by a cornea incision;

the connection between the 4-0 bag tension hook and the 8-0 polypropylene needled suture is realized by an 8-0 polypropylene suture loop through a round hole at the tail end of the 4-0 bag tension hook, and the loop tightness between the 4-0 bag tension hook and the 8-0 polypropylene needled suture is adjustable and smooth;

the round hole in the capsular bag can be connected with a smooth polypropylene suture, so that the capsular bag can be supported on the horizontal plane of the capsular bag, the position of the intraocular lens in the capsular bag is stabilized, which is equivalent to a traditional capsular tension ring, but simpler in design, adjustable and lower in cost than the traditional capsular tension ring;

the 4-0 capsular bag tension hook and attached 8-0 polypropylene suture were then formed into a lens or intraocular lens capsular bag complex with a scleral flap, an interlaminar fixation dislocation.

The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. The preparation method of the double-hole bag drag hook is characterized by comprising the following steps:

bending the suture to form an arcuate end of the suture;

heating the curved end to shape the curved end;

respectively clamping the round and blunt ends to form round ends;

piercing the rounded ends, respectively, so that the rounded ends form through holes;

the preparation method specifically comprises the following steps:

bending the tail of the 4-0 medical polypropylene suture into an arc shape, leaving a U-shaped top end of 2 mm;

the electric coagulator is used for cauterizing the U-shaped top end from far to near, and shaping can be carried out for 3-5 s;

cauterizing the suture on the longer end side and the suture on the shorter end side by using an electric coagulator to enable the pointed ends of the two ends to be rivet-shaped;

clamping the melted rivet-like tip into a rounded end with a needle holder or a venturi clamp;

2. The method of preparing according to claim 1, wherein a distance between a first end of the suture and a distal-most end of the arcuate end is greater than a distance between a second end of the suture and a distal-most end of the arcuate end.

3. The method of manufacturing according to claim 1, wherein the diameter of the through hole is larger than the diameter of the suture.