CN113967127A

CN113967127A - Miniature intraocular lens push broach

Info

Publication number: CN113967127A
Application number: CN202111392416.9A
Authority: CN
Inventors: 毕燕龙; 陈开传; 林慧
Original assignee: Shanghai Tongji Hospital
Current assignee: Shanghai Tongji Hospital
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-01-25

Abstract

The invention relates to a miniature intraocular lens push broach, which comprises a blade part and a handle part, wherein the blade part and the handle part are integrally connected; the handle part is formed by integrating an operating end and an extending end, and the operating end and the extending end form an inclined included angle of 135 degrees; the operating end and the blade part are horizontally arranged and integrally connected; its advantages are: the invention has simple structure and convenient operation, can smoothly enter the capsular sac without enlarging the corneal limbus incision, and has sharp knife surface and difficult fracture; meanwhile, the width of the blade part is consistent with the thickness of the optical part of the intraocular lens, the intraocular lens can be wrapped to carry out rapid push-cutting, and the intraocular lens residue is rapidly taken out under the condition of not damaging the capsular sac, so that the damage during surgery is reduced, and the surgery efficiency is improved.

Description

Miniature intraocular lens push broach

Technical Field

The invention relates to the technical field of ophthalmic surgical instruments, in particular to a miniature intraocular lens push broach.

Background

The number of cataract attacks increases year by year with the age of human beings, and the main pathological changes of cataract are lens hardening and clouding, which need to be replaced by artificial lens. The most widely used today is the folded intraocular lens, which can be deployed after insertion through a small incision. In clinical practice, when the intraocular lens loop is broken, the optical area is damaged, or the degree of the implanted intraocular lens is found to have errors after operation, the intraocular lens needs to be taken out or replaced, but the implanted intraocular lens cannot be folded again, so the required operation incision is large, and operation complications are easy to cause. Meanwhile, the scissors using the traditional artificial lens are easy to wear and slip, and the incision required during the intraocular operation is large, so that the sharp heads of the scissors can cut the capsular sac and damage the corneal endothelium and the iris.

The Chinese patent application: 201920002066.2 discloses intraocular lens scissors for ophthalmologic operation, which comprises two scissors bodies, wherein the scissors bodies comprise cutting blades, a handle and a spring piece, and the surface of the cutting blade part is plated with a diamond film, thereby improving the cutting edge strength of the intraocular lens scissors for ophthalmologic operation by three times. Compared with the product, the product structure is more traditional, the miniature push broach of the product artificial crystal adopts stainless steel or high-tech nano zirconia as raw materials, the cutting edge is sharp and incomparable, the style of the traditional scissors is broken away, and the operation is more convenient.

The Chinese patent application: 202022263343.0 discloses a recess formula intraocular lens is cut, including two shearing cutter bodies, two it is articulated through the round pin axle between the shearing cutter body, the shearing cutter body including the shearing tool bit, with the integrative shearing tool handle that sets up of shearing tool bit and connect in the spring leaf of shearing tool handle rear end, its characterized in that: one of them the inboard of shearing tool bit is provided with cuts initiative sword, another the inboard of shearing tool bit be provided with cut the groove of accomodating that initiative sword corresponds, the both sides wall of accomodating the groove double as with cut the passive sword of shearing that initiative sword cooperation realized cutting the intraocular lens, the device utilizes its inboard of shearing tool bit to cut initiative sword, and cut the groove double as the cooperation realization of accomodating that initiative sword corresponds and cut the intraocular lens. Compared with the product, the groove type artificial crystal scissors need a larger cut when in use, and have complex style, difficult cleaning of the groove structure and incapability of completely accommodating artificial crystal fragments. The product micro push broach can be directly taken out by tweezers after dividing the artificial crystal into small pieces, has extremely high surface smoothness and is not easy to abrade tissues.

The Chinese patent application: 201720130434.2 discloses a pair of scissors for artificial lens, which mainly comprises: the left side piece and the right side piece of mutual articulated, left side piece and right side piece all contain tool bit, handle and spring leaf, the tool bit is to the crooked curved tool bit of scissors direction of opening and shutting, and the knife tip of tool bit is 1/4 circles, and the knife tip of controlling the tool bit merges and constitutes the semicircle. The device is used for cutting the artificial lens into two halves or a plurality of pieces in clinical ophthalmic surgery, and is convenient for taking out the artificial lens from the eye. Compared with the product, the scissor head of the product is in a semicircular structure, which is not beneficial to cutting the artificial lens in the capsule, and can possibly combine the injuries of the iris and the inner capsule and also needs a larger wound. The micro artificial crystal push broach has a smaller range of motion than scissors when in use, the sharpness of the stainless steel or ceramic blade is greater than that of a common steel broach, and the blade is of a bent structure, the pointed end is inward, and the tissue structures such as the iris, the inner capsule and the like are not easy to be damaged when the push broach is rapidly pushed and cut.

Therefore, in view of the above, there is a need for a micro-intraocular lens pushing scalpel which is simple in operation, can be pushed out and cut out easily and quickly, and can reduce the eye injury of a patient during surgery and improve the surgery efficiency.

Disclosure of Invention

The invention aims to push and cut an artificial lens into a plurality of small pieces without enlarging the original operation incision, so that the artificial lens is convenient to take out, the damage is reduced, and the operation time is saved.

In order to achieve the purpose, the invention adopts the technical scheme that:

a miniature intraocular lens push-type broach comprises a blade part and a handle part, wherein the blade part and the handle part are integrally connected; the handle part is formed by integrating an operating end and an extending end, and the operating end and the extending end form an inclined included angle of 135 degrees; and the operating end and the blade part are horizontally arranged and integrally connected.

In the above-described intraocular lens pushing blade, as a preferred aspect, the blade portion has a solid crescent shape, the edge of the blade portion has a certain slope, and the tip of the blade portion is bent inward; the vertical distance between the tips at the two sides of the blade part is 0.5mm, and corresponds to the thickness of the optical part of the intraocular lens; the vertical height of the highest vertex of the crescent on the two sides is 0.8 mm.

In the above-mentioned intraocular lens push-type broach, as an optimal solution, the blade portion is a pinpoint-like structure in a top view, the horizontal length of the blade portion is 8mm, the length from the tip of the blade portion to the turning point of the incision of the blade portion is 6mm, and the length from the turning point of the blade portion to the starting point of the front end of the handle is 2 mm.

In the above-mentioned push broach for a miniature intraocular lens, as a preferable embodiment, the blade portion is made of stainless steel or high-purity ultrafine zirconia as a raw material.

In the above-mentioned intraocular lens pushing scalpel, as a preferable mode, the operating end and the extending end of the handle portion are both in a cylindrical structure, the diameter of the operating end and the extending end is 0.6mm, the horizontal length of the operating end is 0.42cm, and the horizontal length of the extending end is 9.5 cm.

In the above-mentioned intraocular lens pushing broach, preferably, the extended end surface of the handle portion is provided with a diamond dot pattern.

The invention has the advantages that:

1. the invention has simple structure and convenient operation, the blade part in the device can smoothly enter the capsular sac under the condition of small wound, the tip end of the blade is bent inwards, the capsular sac is not easy to be damaged, the height of the blade is consistent with the thickness of the optical part of the intraocular lens, and the intraocular lens can be quickly pushed and cut under the action of the auxiliary hook, thereby being convenient for taking out.

2. The operation end and the extension end form an inclined included angle of 135 degrees, the structure meets the operation requirement, an operator can conveniently hold the instrument by hands, and the instrument can flexibly operate when entering the corneal limbus incision in parallel and reaching the capsular sac.

3. The blade part is processed by stainless steel or nano-material zirconium oxide, and the components have no harm to human body, and have the characteristics of high hardness, strong corrosion resistance, good chemical stability, high wear resistance and the like, and the blade part has attractive and delicate appearance and sharp cutting edge.

4. The extending end surface of the handle part is provided with the diamond point-shaped patterns, so that an operator can hold an instrument conveniently, the friction force between the handle part and the palm of the operator is increased, the instrument is prevented from slipping, the normal operation of a patient is influenced, and unnecessary injury to the patient is reduced.

Drawings

FIG. 1 is a schematic structural view of a push broach for a miniature intraocular lens according to the present invention.

FIG. 2 is a top view of a miniature intraocular lens pushing blade according to the present invention.

Detailed Description

The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications can be made by those skilled in the art after reading the disclosure of the present invention, and equivalents fall within the scope of the appended claims.

The reference numerals and components referred to in the drawings are as follows:

1. blade part	2. Handle part	3. Operation terminal
			4. Extension end	5. Diamond point pattern

Examples

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a push broach for a miniature intraocular lens according to the present invention. FIG. 2 is a top view of a miniature intraocular lens pushing blade according to the present invention.

The device mainly relates to a miniature push broach which can push and cut the artificial lens into two or a plurality of pieces in the clinical ophthalmologic operation process and is convenient for taking out the artificial lens to be replaced from the capsule; the micro push broach mainly comprises a blade part 1 and a handle part 2, wherein the blade part 1 and the handle part 2 are integrally connected; the handle part 2 is integrally formed by an operating end 3 and an extending end 4, the operating end 3 and the extending end 4 form an inclined included angle of 135 degrees, the angle is obtained according to clinical experience, the structure meets the operation requirements of an operation, an operator can conveniently hold the instrument by hands, the instrument enters the corneal limbus incision in parallel and reaches the capsular sac, the arrangement can reduce the corneal limbus incision and can push and cut the artificial crystal into a plurality of small blocks by a sharp knife face, the capsular sac is not easily damaged in the operation process, and the artificial crystal can be smoothly and safely taken out; and the operating end 3 and the blade part 1 are horizontally arranged and integrally connected.

In this embodiment, the blade portion 1 is preferably shaped as a solid crescent, the edge of the blade portion has a certain slope (equivalent to a blade edge), and the blade has a certain slope from the handle, so that the blade can smoothly enter the capsular sac without enlarging the corneal edge incision during the surgical operation, and the blade surface is sharp and is not easy to break; the tip end of the blade part 1 is bent inwards, and the capsule membrane is not easy to damage due to the arrangement, so that the problems that the capsule membrane is possibly scratched and the corneal endothelium and the iris are damaged in the traditional intraocular operation are solved; the vertical distance between the tips at the two sides of the blade part 1 is 0.5mm, and the vertical distance corresponds to the thickness of the optical part of the intraocular lens, so that the intraocular lens can be quickly pushed and cut under the action of the auxiliary hook, and the taking-out is convenient; the vertical height of the highest vertex of the crescent on the two sides is 0.8 mm.

In this embodiment, it is preferable that the blade unit 1 has a needlepoint-like structure in a plan view, the blade unit 1 has a horizontal length of 8mm, a length from the tip of the blade unit 1 to the cut-off turning point of the blade unit is 6mm, and a length from the turning point of the blade unit 1 to the start of the tip of the handle is 2 mm.

In this embodiment, the blade portion 1 is preferably made of stainless steel or high-purity ultrafine zirconia; the stainless steel knife has the series characteristics of excellent corrosion resistance, formability, compatibility, obdurability and the like, and the ceramic knife has the advantages of high hardness, high density, high temperature resistance, magnetization resistance, oxidation resistance and the like; therefore, the composition has no harm to human body, has the characteristics of high hardness, strong corrosion resistance, good chemical stability, high wear resistance and the like, and has beautiful and delicate appearance and sharp cutting edge.

In this embodiment, the operation end 3 and the extension end 4 of the handle 2 are preferably cylindrical structures, and have a diameter of 0.6mm, a horizontal length of 0.42cm and a horizontal length of 9.5 cm.

In this embodiment, it is preferable that the surface of the extending end 4 of the handle portion 2 is provided with a diamond dot pattern 5, which is convenient for the operator to hold the instrument, increases the friction force with the palm of the operator, prevents the instrument from slipping, further affects the normal operation of the patient, and reduces unnecessary injury to the patient.

The use method of the invention comprises the following steps: at first in the intraocular lens replacement operation, stretch into eyeball cyst membrane with this miniature push broach from eye incision, then utilize sharp knife face on the blade portion to push away the intraocular lens and cut into several fritters, because the most advanced inboard bending of blade portion, so be difficult for damaging the cyst membrane when the cutting operation to can push away fast under the effect of supplementary hook and cut the intraocular lens, and then be convenient for take out, saved operating time, improved operation efficiency, the damage that causes when also having reduced patient's operation simultaneously.

It should be noted that: the device has a simple structure, is convenient to operate, the blade part in the device can smoothly enter the capsular sac under the condition of small wound, the tip end of the blade is bent inwards, the capsular sac is not easy to be damaged, the height of the blade is consistent with the thickness of the optical part of the intraocular lens, the intraocular lens can be quickly pushed and cut under the action of the auxiliary hook, and the taking-out is convenient; meanwhile, the design structure of the device meets the surgical requirements, so that an operator can conveniently hold the instrument by hand, and the instrument can smoothly enter the corneal limbus incision to reach the inside of the capsular sac for flexible operation; the blade part of the scalpel is made of stainless steel or high-purity superfine zirconia and is harmless to a human body, the hardness of the scalpel is ten times that of a common steel scalpel, the scalpel is good in stability, and can be aseptically packaged and used after high-temperature sterilization, and meanwhile, the scalpel can be used as a disposable instrument, so that the scalpel is prevented from being worn and dulled in the recovery process, and the operation result is further influenced; the secondary device is not only applied to pushing and cutting the artificial crystal which needs to be replaced, but also can assist the decomposition of the sclerote crystal in the cataract surgery process, thereby saving the surgery time; meanwhile, the optical diameter of the common artificial lens in the market is about 5.5-6.0mm, the thickness of the optical part is about 100-400 mu m, the specification of the product conforms to the thickness and the diameter of the optical area of most artificial lenses in the market, and the mass production, popularization and application and clinical service can be recommended.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and additions can be made without departing from the principle of the present invention, and these should also be considered as the protection scope of the present invention.

Claims

1. A miniature intraocular lens push broach is characterized by comprising a blade part and a handle part, wherein the blade part and the handle part are integrally connected; the handle part is formed by integrating an operating end and an extending end, and the operating end and the extending end form an inclined included angle of 135 degrees; and the operating end and the blade part are horizontally arranged and integrally connected.

2. The miniature intraocular lens pusher of claim 1, wherein the blade portion has a solid crescent shape, the blade portion edge has a slope, and the tip of the blade portion is curved inwardly; the vertical distance between the tips at the two sides of the blade part is 0.5mm, and corresponds to the thickness of the optical part of the intraocular lens; the vertical height of the highest vertex of the crescent on the two sides is 0.8 mm.

3. The push type micro-intraocular lens according to claim 1 wherein the blade portion has a needle-tip-like configuration in a top view, the blade portion has a horizontal length of 8mm, a length of 6mm from the tip of the blade portion to the cut-off transition of the blade portion, and a length of 2mm from the transition of the blade portion to the start of the front end of the handle.

4. The push broach according to claim 1, wherein the blade portion is made of stainless steel or high-purity ultrafine zirconia.

5. The miniature intraocular lens pushing blade of claim 1 wherein said handle portion has an operative end and an extension end each having a cylindrical configuration with a diameter of 0.6mm, said operative end having a horizontal length of 0.42cm and said extension end having a horizontal length of 9.5 cm.

6. The miniature intraocular lens pusher of claim 1, wherein the extended end surface of the handle portion is provided with a diamond dot pattern.