CN214018091U

CN214018091U - Syringe and cornea mouth gag

Info

Publication number: CN214018091U
Application number: CN202022616008.4U
Authority: CN
Inventors: 钱竹韵
Original assignee: Shanghai Aier Eye Hospital Co Ltd
Current assignee: Shanghai Aier Eye Hospital Co Ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-08-24
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses an injector and cornea mouth gag, cornea mouth gag include the mountable on the syringe needle tubing the interface part and with the connecting rod of interface part connection, the front end of connecting rod is equipped with the function portion, the connecting rod with the function portion all is the tubulose, the front end of function portion is equipped with and is used for cornea open-ended blade. The utility model provides a cornea mouth gag, through set up on the connecting rod function portion, and set up the blade in the function portion, realize cornea open-ended function, and, the interface part mountable is on the syringe needle tube, because the connecting rod with function portion all is the tubulose for this cornea mouth gag, but the direct mount directly on all kinds of viscoelastic agent needle tubes, directly pour into viscoelastic agent into behind the separation incision, saved the operation time, avoided behind the separation incision that the aqueous humor flows out the anterior chamber and sinks, improved the operation security.

Description

Syringe and cornea mouth gag

Technical Field

The utility model relates to the field of tools for eye surgery, in particular to a cornea mouth gag. In addition, the utility model also relates to an injector including above-mentioned cornea mouth gag.

Background

Femtosecond laser assisted phacoemulsification (FLACS) as a new cataract surgery assisting technology has shown its unique advantages in the operation process of the phacoemulsification. Femtosecond laser corneal incisions are one of the important steps in FLACS surgery. The stability of the artificially made transparent corneal incision is closely related to the operation skill of doctors, and improper operation easily causes complications such as corneal structural damage at the incision, postoperative incision leakage and the like, and the operation effect is influenced. The femtosecond laser cornea incision is not a complete step-type incision, only partial steps between the surface of the cornea and the stroma are constructed, and the eyeball is still a completely closed space and is not communicated with the outside. And releasing the negative pressure suction to the operative eye after the femtosecond laser is finished, and opening the constructed stepped tunnel by the operator through the FLACS corneal opener to open the other side of the incision to finish the whole transparent corneal incision.

In the prior art, the cornea mouth gag is generally made of alloy materials, the body part and the head part form an obtuse angle of 130-160 degrees, the front end of the head part adopts a flat bamboo comb-shaped design, and a transparent cornea incision made by femtosecond laser can be separated in a blunt manner.

However, in the FLACS corneal opener used in the prior art, the front end of the separator head is designed in a blunt bamboo comb shape, and after multiple cleaning and high-temperature sterilization, the head is inevitably worn or deformed, and in the clinical use process, the inventors found that the efficiency of the transparent corneal incision made by separating the femtosecond laser through the FLACS corneal opener used for multiple times is reduced, and the situation that the incision separation is incomplete or even can not be completely separated often occurs, and the incision needs to be made again manually.

Therefore, how to improve the separation efficiency of the corneal opener is a technical problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cornea mouth gag, this cornea mouth gag can use with the needle tubing cooperation, directly pours into the viscoelastic agent into after the separation incision, has saved the operation time. Another object of the present invention is to provide an injector comprising the above corneal opener.

In order to achieve the above object, the utility model provides a following technical scheme:

a cornea mouth gag, including mountable interface part on the syringe needle tubing and with the connecting rod that the interface part is connected, the front end of connecting rod is equipped with the function portion, the connecting rod with the function portion all is the tubulose, the front end of function portion is equipped with the blade that is used for the cornea open-ended.

Preferably, the functional part is formed by bending the front end of the connecting rod.

Preferably, the extending direction of the functional part forms an included angle beta of 50-80 degrees with the axial extending direction of the connecting rod.

Preferably, the interface part is a plastic part, and the connecting rod is a metal part.

Preferably, the cutting edge of the functional part is sequentially divided into a first inclined surface and a second inclined surface from one side close to the connecting rod to one side far away from the connecting rod.

Preferably, the length of the first inclined plane along the extending direction of the functional part is 0.5-0.7 times of the length of the cutting edge along the extending direction of the functional part.

Preferably, the first slope has a slope angle α of 9 ° to 13 ° with respect to the extending direction of the functional portion;

preferably, the angle of rotation γ of the second slope with respect to the direction of extension of the functional portion is 28 ° to 32 °.

Preferably, the front end of the cutting edge is in a sharp angle shape, an arc shape or a flat head shape.

An injector comprises the cornea mouth gag.

The utility model also provides an injector, which comprises the cornea mouth gag.

The utility model provides a cornea mouth gag, including the mountable on the syringe needle tubing the interface part and with the connecting rod of interface part connection, the front end of connecting rod is equipped with the function portion, the connecting rod with the function portion all is the tubulose, the front end of function portion is equipped with and is used for cornea open-ended blade. The utility model provides a cornea mouth gag, through set up on the connecting rod function portion, and set up the blade in the function portion, realize cornea open-ended function, and, the interface part mountable is on the syringe needle tube, because the connecting rod with function portion all is the tubulose for this cornea mouth gag, but the direct mount directly on all kinds of viscoelastic agent needle tubes, directly pour into viscoelastic agent into behind the separation incision, saved the operation time, avoided behind the separation incision that the aqueous humor flows out the anterior chamber and sinks, improved the operation security.

The utility model provides an injector is equipped with above-mentioned cornea mouth gag, because the cornea mouth gag has above-mentioned technological effect, consequently, the injector that is equipped with this cornea mouth gag should also have corresponding technological effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of one embodiment of a corneal opener provided by the present invention;

FIG. 2 is a top view of one embodiment of a corneal opener provided by the present invention;

FIG. 3 is a schematic structural view of a connecting port of the corneal opener of the present invention;

FIG. 4 is a schematic structural view of a connecting rod of the corneal opener of the present invention;

FIG. 5 is a schematic structural view of a first embodiment of a functional portion of a corneal opener according to the present invention;

FIG. 6 is a schematic structural view of a second embodiment of a functional portion of a corneal opener according to the present invention;

FIG. 7 is a schematic structural view of a third embodiment of a functional section of a corneal opener according to the present invention;

FIG. 8 is a schematic structural view of an embodiment of the syringe provided by the present invention;

wherein: an interface part-100; connecting rod-200; a functional part-300; a first bevel-301; a second bevel-302; injector syringe-400.

Detailed Description

The core of the utility model is to provide a cornea mouth gag, which can be used with a needle tube in a matching way, and viscoelastic agent is directly injected after the incision is separated, thereby saving the operation time. The other core of the utility model is to provide an injector comprising the cornea mouth gag.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 8, fig. 1 is a front view of an embodiment of a corneal opener provided by the present invention; FIG. 2 is a top view of one embodiment of a corneal opener provided by the present invention; FIG. 3 is a schematic structural view of a connecting port of the corneal opener of the present invention; FIG. 4 is a schematic structural view of a connecting rod of the corneal opener of the present invention; FIG. 5 is a schematic structural view of a first embodiment of a functional portion of a corneal opener according to the present invention; FIG. 6 is a schematic structural view of a second embodiment of a functional portion of a corneal opener according to the present invention; FIG. 7 is a schematic structural view of a third embodiment of a functional section of a corneal opener according to the present invention; fig. 8 is a schematic structural view of an embodiment of the syringe provided by the present invention.

In this embodiment, the corneal opener includes an interface portion 100, a connecting rod 200, and a functional portion 300.

Wherein, the interface part 100 can be installed on the injector needle tube 400, namely the cornea mouth gag can be used as a needle head to realize the injection of viscoelastic agent; the connecting rod 200 is connected with the interface part 100, specifically, the connecting rod 200 and the interface part 100 can be assembled after being processed separately, the connecting rod 200 is preferably a metal piece, and the interface part 100 is preferably a plastic piece; the functional part 300 is located at the front end of the connecting rod 200, the connecting rod 200 and the functional part 300 are both in a tubular shape, so that viscoelastic agent can be conveniently output, the front end of the functional part 300 is provided with a cutting edge for opening the cornea, and preferably, the front end part and two sides of the functional part 300 are both provided with cutting edges.

The utility model provides a cornea mouth gag, through set up functional part 300 on connecting rod 200, and set up the blade on functional part 300, realize cornea open-ended function, and, the mountable of interface part 100 is on syringe needle tube 400, because connecting rod 200 and functional part 300 all are the tubulose, make this cornea mouth gag, but the direct mount is on all kinds of viscoelastic agent needle tubes, directly pour into viscoelastic agent after the separation incision, the operation time has been saved, the aqueous humor flows out the anterior chamber and sinks after having avoided the separation incision, the operation security has been improved.

In addition to the above embodiments, the functional part 300 is formed by bending the tip of the connecting rod 200, and preferably, the angle β between the extending direction of the functional part 300 and the axial extending direction of the connecting rod 200 is 50 to 80 °. The bending device facilitates the contact between the functional part 300 and the cornea, and is convenient to operate and use.

In addition to the above embodiments, the interface part 100 is a plastic part, and the material of the interface part 100 is preferably high molecular polypropylene; the tie bar 200 is a metal member, and the material of the tie bar 200 and the functional part 300 is preferably stainless steel. Specifically, the interface portion 100, the connection rod 200, and the functional portion 300 may be sterilized by ethylene oxide sterilization.

In each of the above embodiments, the cutting edge of the functional portion 300 is divided into the first inclined surface 301 and the second inclined surface 302 in order from the side closer to the connecting bar 200 to the side farther from the connecting bar 200. Specifically, after the connecting rod 200 is bent to form the functional portion 300, a cutting edge is further formed at the end of the functional portion 300, and the cutting edge can be formed by cutting.

Further, the length of the first inclined plane 301 along the extending direction of the functional part 300 is 0.5 to 0.7 times, preferably 0.6 times the length of the cutting edge along the extending direction of the functional part 300.

In addition to the above embodiments, the first slope 301 has a slope angle α of 9 ° to 13 ° with respect to the extending direction of the functional part 300.

In addition to the above embodiments, the rotation angle γ of the second slope 302 with respect to the extending direction of the functional portion 300 is 28 ° to 32 °.

In addition to the above embodiments, the edge of the blade may have a pointed shape, an arc shape, or a flat head shape, and the three shapes of the blade may be selected and used as necessary, thereby improving the applicability of the corneal opener.

On the basis of the above embodiments, the corneal mouth gag is disposable, so that the abrasion of instruments in the repeated disinfection and cleaning process is avoided, and the separation success rate and the separation efficiency of the femtosecond laser corneal incision in the operation process are improved.

In one embodiment, the length a of the interface portion 100 is 18mm, and the shape is the same as the needle seat of a standard needle, so that the interface portion can be adapted to different types of syringe needles 400; the connecting rod 200 and the function part 300 are hollow with two open ends, i.e. a tube structure, the front end of the connecting rod 200 is the function part 300, the rear end thereof is connected with the interface part 100, the included angle beta between the function part 300 and the axis of the connecting rod 200 is 50-80 degrees, the length b of the connecting rod 200 is 10mm, the outer diameter d1 is 0.45mm, and the section is a circular structure and is the same as a common No. 4.5 needle; the length c of the functional part 300 is 6mm, the outer diameter d2 is 0.45mm, the length of the rear part is 4mm, namely the length of the cutting edge of the functional part 300 is removed, the functional part is a round hollow structure like a common No. 4.5 syringe needle, the front part is a bevel structure, the length f is 2mm, and the two sides and the front end are provided with cutting edges; the bevel angle α of the first bevel 301 is 11 °, the length g of the first bevel 301 is 1.2mm, the total length of the blade face is about 3/5, and the rotation angle γ of the second bevel 302 is 30 °; function portion 300 front portion is designed respectively for tip, crew cut and button head structure according to the specification difference, and to the blade of crew cut, the front end is the crew cut structure, and length h is 0.2mm ═ 0.2mm, to the blade of button head, is semi-circular structure, and radius i is 0.2mm ═ 0.2 mm.

The cornea mouth gag that this embodiment provided, simple structure, the preparation is simple and convenient, convenient to use, easily clinical popularization.

In addition to the above corneal opener, the present invention further provides an injector including the above corneal opener, and other structures of the injector refer to the prior art, which is not described herein again.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The corneal opener provided by the present invention is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the methods and core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The cornea mouth gag is characterized by comprising a connecting port part (100) capable of being installed on a syringe needle tube (400) and a connecting rod (200) connected with the connecting port part (100), wherein a functional part (300) is arranged at the front end of the connecting rod (200), the connecting rod (200) and the functional part (300) are both tubular, and a cutting edge for opening a cornea is arranged at the front end of the functional part (300).

2. The corneal opener according to claim 1, wherein the functional portion (300) is formed by bending a front end of the connecting rod (200).

3. The corneal opener according to claim 2, wherein the functional part (300) extends at an angle β of 50-80 ° to the axial extension of the connecting rod (200).

4. The corneal opener according to claim 1, wherein the interface portion (100) is a plastic piece and the connecting rod (200) is a metal piece.

5. The corneal opener according to any one of claims 1 to 4, wherein the cutting edge of the functional portion (300) is divided into a first slope (301) and a second slope (302) in this order from a side close to the connecting rod (200) to a side away from the connecting rod (200).

6. The corneal opener according to claim 5, wherein the length of the first bevel (301) in the direction of extension of the functional portion (300) is 0.5 to 0.7 times the length of the cutting edge in the direction of extension of the functional portion (300).

7. The corneal opener according to claim 5, wherein the first bevel (301) has a bevel angle α of 9 ° -13 ° with respect to the extension direction of the functional part (300).

8. The corneal opener according to claim 5, characterized in that the angle of rotation γ of the second bevel (302) relative to the direction of extension of the functional part (300) is 28 ° -32 °.

9. The corneal opener according to any one of claims 1 to 4, wherein the tip end of the cutting edge has a pointed shape, a rounded shape, or a flat head shape.

10. An injector comprising a corneal opener, wherein the corneal opener is as claimed in any one of claims 1 to 9.