CN216496021U

CN216496021U - Special position needle that fills of ICL implantation

Info

Publication number: CN216496021U
Application number: CN202122958057.0U
Authority: CN
Inventors: 廖一露; 石容; 李宗泽
Original assignee: Affiliated Hospital of Zunyi Medical University
Current assignee: Affiliated Hospital of Zunyi Medical University
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-05-13
Anticipated expiration: 2031-11-30

Abstract

The utility model provides a perfusion positioning needle special for ICL implantation, which comprises a handle with openings at two ends and a hollow needle body detachably connected with the lower end of the handle, wherein the hollow handle is hollow; the needle body comprises a joint, an upper needle body, a lower needle body and a needle head which are sequentially connected into a whole from top to bottom and are communicated with each other; the upper end of the joint is detachably connected with the lower end of the handle and communicated with the handle; an included angle I with an upward opening is formed between the upper needle body and the lower needle body; the lower needle body is an arc-shaped tube with a downward concave surface and a flat shape; the needle head is a hollow sheet-shaped body with an arc-shaped top, a flat bottom and a width larger than the width of the lower needle body, an arc-shaped bulge is arranged in the middle of the lower end of the needle head, two sides of the arc-shaped bulge are respectively provided with a filling opening, and a second included angle with a downward opening exists between the bottom of the needle head and the bottom of the lower needle body. The utility model is convenient to operate, reduces the operation of entering the anterior chamber, shortens the operation time, avoids a plurality of complications caused by the residual viscoelastic agent after the operation, and reduces the material consumption.

Description

Special position needle that fills of ICL implantation

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a perfusion positioning needle special for ICL implantation, which is mainly used for performing viscoelastic-free single-incision perfusion positioning on an implanted crystal in posterior chamber type intraocular lens implantation of a crystalline eye.

Background

The implantation of an artificial crystal (ICL) in the posterior chamber of a crystalline eye is one of modern refractive surgery, the operation amount of the ICL in recent years is in a straight-line rising trend in ten years in China, and particularly, the gospel of a patient who cannot perform laser surgery for myopia due to excessively thin cornea, excessively high myopia degree and the like.

ICL surgery is to place an intraocular lens customized for a patient in the posterior ciliary sulcus of the eyeball just in front of the lens itself; the key to a perfect and smooth ICL operation is how to put the artificial lens into the posterior ciliary sulcus faster and safer with less damage, so that the postoperative complications are less.

The application of viscoelastic in surgery has been a focus of debate and research, the use skill of viscoelastic is mainly to control the dosage, but no matter how much or little viscoelastic is used, there is a fear of many complications caused by residual viscoelastic after surgery, and the patient needs to be observed for 2-4 hours before leaving the hospital after measuring intraocular pressure.

At present, viscoelastic agents are not used completely in ICL operation, and two methods are adopted, wherein the first method is to place four climbers of an artificial lens into ciliary sulcus directly after incision is made, which is difficult to realize, the artificial lens can be placed into the ciliary sulcus occasionally, and the astigmatic lens is still adjusted; the other method is realized by adopting an integrated crystal positioning hook with a perfusion function, which can be shared in a plurality of fields, but is mainly suitable for positioning cataract IOL (intraocular lens), cataract patients are old groups, the operation is to remove the lens per se, a large space is available in the operation for implanting and positioning the IOL, the requirement is not high, the operation is easy, and the ultrasonic emulsification perfusion head can conveniently perform perfusion positioning at present; however, ICL surgery is characterized by: the patient is a young group, belongs to a cosmetic operation, is an operation which is more and more perfect, has very high requirements, has the characteristics of in-place crystal, shallow anterior chamber, large ICL positioning span and the like in the operation, and needs a surgical instrument which is special, fine, reasonable in design, practical and generalized for ICL in clinical evaluation.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention aims to provide a perfusion positioning needle for ICL implantation, which is convenient to operate, can effectively reduce surgical operations, reduce surgical time, and reduce postoperative complications.

The purpose of the utility model is realized by the following technical scheme:

a perfusion positioning needle special for ICL implantation comprises a handle with two open ends and hollow inside and a hollow needle body detachably connected to the lower end of the handle; the needle body comprises a joint, an upper needle body, a lower needle body and a needle head which are sequentially connected into a whole from top to bottom and are mutually communicated; the upper end of the joint is detachably connected to the lower end of the handle and communicated with the handle; an included angle I with an upward opening is formed between the upper needle body and the lower needle body; the lower needle body is an arc-shaped tube with a downward concave surface and a flat shape; the syringe needle is the top and is the arc and the flat and width of bottom is greater than the cavity platelike body of needle body width down, is equipped with the arc arch in syringe needle lower extreme middle part, is equipped with one respectively at the protruding both sides of arc and fills the mouth, has opening contained angle two down between syringe needle bottom and lower needle body bottom.

Furthermore, the upper needle body is an arc-shaped tube with a downward concave surface so as to adapt to the people with higher eyebrow bones.

Further, the size of the first included angle is 90-130 degrees.

Further, the size of the second included angle is 165-175 °.

Further, the infusion port edge is smooth and rolled inward so that the needle does not scrape the incision as it enters the anterior chamber.

Furthermore, a frosting surface is arranged at the bottom of the needle head; the frosting surface is composed of a plurality of arc-shaped particles or a plurality of linear bulges.

Furthermore, be equipped with many edges at the syringe needle top and be curved recess to make the syringe needle form cat claw column structure, the fixed crystal of easier carries out the positioning.

Furthermore, the upper end of the joint is in threaded connection with the lower end of the handle, so that the joint is convenient to disassemble.

Furthermore, the front side and the rear side of the needle head are both arc-shaped structures.

Furthermore, the joints between the joint and the upper needle body, between the upper needle body and the lower needle body, and between the lower needle body and the needle head are all in arc transition.

When the perfusion positioning needle is used for artificial lens positioning in an ICL implantation without viscoelastic agent, the positioning can be completed only by one incision without additionally making an incision in the operation, so that the operation is convenient, the operation of entering the anterior chamber is reduced, the operation time is shortened, a plurality of complications caused by residual viscoelastic agent are avoided after the operation, the intraocular pressure is measured after 2-4 hours of observation after the operation is finished, and the like, and the consumable material is reduced. At present, the cataract ultrasonic emulsification operation is widely popularized in China, the needle head can be connected with a cataract ultrasonic joining handle and then applied, the intraocular pressure is adjusted by controlling the height of perfusate and a perfusion bottle through an ultrasonic emulsification machine, and the needle head is more suitable and more convenient for clinical application.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

FIG. 1 is a side view of a dedicated perfusion positioning needle for ICL implantation in accordance with the present invention;

FIG. 2 is a side view of the needle body of the perfusion positioning needle for ICL implantation according to the present invention;

FIG. 3 is a cross-sectional view of the lower needle body of the perfusion positioning needle for ICL implantation according to the present invention;

FIG. 4 is a side view of the needle tip of the ICL implantation dedicated perfusion positioning needle of the present invention;

FIG. 5 is a top view of the needle tip of the ICL implantation dedicated perfusion positioning needle of the present invention;

shown in the figure: 1-handle, 2-needle body, 21-joint, 22-upper needle body, 23-lower needle body, 24-needle head, 25-arc bulge, 26-filling opening, 27-included angle I, 28-included angle II, 29-frosting surface and 210-groove.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. The described embodiments are only some embodiments of the utility model, not all 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 understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figures 1-5, the perfusion positioning needle special for ICL implantation comprises a handle 1 and a needle body 2.

The handle 1 is a tubular body with two open ends and a hollow interior, and anti-skid grains are arranged on the outer side of the handle 1. A built-in joint (which is matched with the super-breast infusion joint) is arranged in the upper end of the handle 1 and is connected with an infusion tube for infusion (the upper end of the infusion tube is connected with an infusion bottle or an infusion bag or an infusion bottle), so that the position adjusting operability of the artificial lens is improved; the depth change of the anterior chamber can be adjusted (the change is adjusted by an adjuster on a transfusion tube, and the transfusion tube adopts a conventional medical transfusion tube); the ultrasonic emulsification handle can also be used to connect with the tail part of the needle body 2, and the perfusion flow rate and the perfusion bottle height can be automatically adjusted by using the ultrasonic emulsification to control the depth (pressure) of the anterior chamber.

The needle body 2 is a hollow tubular body which is detachably connected with the lower end of the handle 1. The needle body 2 comprises a joint 21, an upper needle body 22, a lower needle body 23 and a needle head 24 which are sequentially connected into a whole from top to bottom and are mutually communicated.

The upper end of the joint 21 is in threaded connection with the lower end of the handle 1 and communicated with the handle 1, threads matched with the threads at the lower end of the handle 1 are arranged at the upper end of the joint 21, and the outer part of the lower end of the joint 21 is a regular polygonal cylindrical body, so that the joint 21 can be conveniently screwed by a tool to disassemble and assemble the joint 21. The upper end of the connector 21 is made into a threaded structure, the threaded structure is identical in size and shape with the ultrasonic emulsification needle joint, and a spare handle or a handle with an ultrasonic emulsification needle is convenient to use for connection in the operation.

The upper needle body 22 is an arc-shaped tube with a downward concave surface so as to adapt to the crowds with small eyelid fissure, tight eyelid and higher eyebrow bone, and the eyebrow bone of some crowds is higher, and the upper needle body 22 is influenced by the higher eyebrow bone during operation, so that the upper needle body 22 is designed to be of a structure with a certain radian (the radian is 170-180 degrees).

An included angle 27 with an upward opening exists between the upper needle body 22 and the lower needle body 23, that is, the lower needle body 23 is bent upward by a certain angle relative to the upper needle body 22. The size of the first included angle 27 is 90-130 degrees.

The lower needle body 23 is an arc-shaped tube with a downward concave surface and a flat shape, the lower needle body 23 with an arc-shaped structure can meet the radian required by entering the anterior chamber and the physiological curve of the surface of the iris of the anterior chamber, and the operation difficulty of adjusting the position of the superficial anterior chamber across the pupillary region is reduced. The pipe diameter of the lower needle body 23 is as small as possible under the condition of ensuring that the hardness does not influence the position adjustment, so that the extrusion to the notch is reduced.

The needle head 24 is a hollow sheet-shaped body with an arc top and a flat bottom, the width of the hollow sheet-shaped body is larger than that of the lower needle body 23, an arc-shaped bulge 25 is arranged in the middle of the lower end of the needle head 24, two sides of the arc-shaped bulge 25 are respectively provided with a filling opening 26, and an included angle two 28 with a downward opening exists between the bottom of the needle head 24 and the bottom of the lower needle body 23. The second included angle 28 is 165-175 degrees.

When the needle head 24 is manufactured, the whole needle head 24 is in a reverse snake head shape, the front end is provided with the arc-shaped bulge 25 in a closed manner, the two sides of the front end are provided with the filling openings 26, the two filling openings 26 and the arc-shaped bulge 25 are basically positioned on the same plane, the difficulty of entering the anterior chamber can be reduced, the opening of the filling opening 26 is small, the filling can be kept, the edge of the filling opening 26 is smooth and rolled inwards, the situation that the needle head 24 does not scrape the cut when entering the anterior chamber can be reduced, the needle head 24 is pressed into a flat snake mouth shape and extends towards the two sides (the width of the needle head 24 is larger than that of a lower needle body), the bottom of the lower jaw of the needle head 24 is frosted (namely, the frosted surface 29 is arranged at the bottom of the needle head 24, the frosted surface 29 is formed by a plurality of arc-shaped particles or a plurality of linear bulges), the existence of the frosted surface 29 can increase the holding force, the ICL is convenient to fix for positioning, the transverse diameter of the front end of the needle head 24 is increased and is flat, a plurality of cats 210 with arc-shaped edges are arranged at the top of the needle head 24, so that the needle head 24 forms a claw-shaped structure, the cat-claw like structure can increase the contact area with the lens. The needle 24 is curved on both the front and rear sides.

The joints between the connector 21 and the upper needle body 22, between the upper needle body 22 and the lower needle body 23, and between the lower needle body 23 and the needle 24 are all in arc transition.

As shown in fig. 3, the cross-sectional area of the flat needle 24 and the lower needle 23 is smaller than that of the round needle 24 and the lower needle 23, so that the notch is not excessively spread when the needle is inserted into the notch, and the upper and lower planes of the flat needle 24 and the lower needle 23 can better fit the notch to reduce water leakage.

When the device is used, a transparent corneal incision is made in a conventional mode, an intraocular lens is implanted in the anterior chamber in a mode that viscoelastic agents are not injected into the anterior chamber, the upper end of a handle 1 of a perfusion position adjusting needle is connected with a medical perfusion tube, the upper end of the medical perfusion tube is inserted into the perfusion bottle, the perfusion bottle is adjusted to a proper position by turning on a switch of the perfusion tube to keep perfusion, a needle head 24 with the perfusion position adjusting needle and a lower needle body 23 slowly enter the probe, the bottle height is determined by checking the formation condition of the anterior chamber, the space of the anterior chamber is satisfactory, the needle head 24 and the lower needle body 23 further slowly enter the probe with radian, four climbers of the intraocular lens are respectively placed in ciliary sulcus, the lens needs to be rotated to a marking position when astigmatism exists, the needle head 24 and the lower needle body 23 are withdrawn after the marking is finished, the incision is sealed by using balance liquid, and the end is finished. The procedure of connecting the phacoemulsification handle is also the same.

Other parts of the utility model not described in detail are conventional techniques known to the person skilled in the art.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The scope of the present invention is not limited to the technical solutions disclosed in the embodiments, and any modifications, equivalent substitutions, improvements, etc. made to the above embodiments according to the technical spirit of the present invention fall within the scope of the present invention.

Claims

1. A perfusion positioning needle special for ICL implantation comprises a handle with two open ends and hollow inside and a hollow needle body detachably connected to the lower end of the handle; it is characterized in that the needle body comprises a joint, an upper needle body, a lower needle body and a needle head which are sequentially connected into a whole from top to bottom and are mutually communicated; the upper end of the joint is detachably connected to the lower end of the handle and communicated with the handle; an included angle I with an upward opening is formed between the upper needle body and the lower needle body; the lower needle body is an arc-shaped tube with a downward concave surface and a flat shape; the syringe needle is the top and is the arc and the flat and width of bottom is greater than the cavity platelike body of needle body width down, is equipped with the arc arch in syringe needle lower extreme middle part, is equipped with one respectively at the protruding both sides of arc and fills the mouth, has opening contained angle two down between syringe needle bottom and lower needle body bottom.

2. The ICL implantation perfusion positioning needle as recited in claim 1, wherein the upper needle body is an arc-shaped tube with a downward concave surface.

3. The ICL implantation perfusion positioning needle of claim 1, wherein the first included angle is 90-130 °.

4. The ICL implantation dedicated perfusion positioning needle as set forth in claim 1, wherein the second included angle is 165-175 °.

5. The ICL implantation dedicated perfusion positioning needle of claim 1, wherein the perfusion opening is smooth edged and curled inward.

6. The ICL implantation perfusion positioning needle as recited in claim 1, wherein a frosted surface is provided at the bottom of the needle head; the frosting surface is composed of a plurality of arc-shaped particles or a plurality of linear bulges.

7. The ICL implantation perfusion positioning needle of claim 1, wherein the tip of the needle is provided with a plurality of grooves with arc edges.

8. The ICL implantation perfusion positioning needle of claim 1, wherein the upper end of the connector is threadedly connected to the lower end of the handle.

9. The ICL implantation perfusion positioning needle of claim 1, wherein the front and back sides of the needle head are both arc-shaped.

10. The perfusion positioning needle special for ICL implantation as claimed in any one of claims 1-9, wherein the joints between the connector and the upper needle body, between the upper needle body and the lower needle body, and between the lower needle body and the needle head are all arc-shaped transitions.