CN210573063U

CN210573063U - Soft contact lens structure with hard lens

Info

Publication number: CN210573063U
Application number: CN201921896271.4U
Authority: CN
Inventors: 许伟航; 郑尧聪; 游主依
Original assignee: Jiangsu Shizhun Medical Equipment Co Ltd
Current assignee: Jiangsu Shizhun Medical Equipment Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-05-19
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a soft contact lens structure with hard lens, including the soft contact lens body, the surface of the soft contact lens body is provided with lubricated thin layer, and the optical zone at soft contact lens body middle part is hollow structure, and hollow structure's length is greater than the length 2-4mm of soft contact lens body optical zone, and the embedded hard lens body that is equipped with of this hollow structure, and the hard lens body covers the optical zone at soft contact lens body middle part safely, and two tip of hard lens body are connected with the non-optical zone of the soft contact lens body through the adhesive, and the crooked radian of hard lens body and soft contact lens body is unanimous. The utility model embeds the hard lens body in the hollow structure of the soft contact lens body, which can provide the high definition of the hard contact lens on the eyesight and the comfort level of the soft contact lens on wearing.

Description

Soft contact lens structure with hard lens

Technical Field

The utility model relates to a contact lens technical field, concretely relates to have soft contact lens structure of hard lens by the way.

Background

The purpose of contact lenses is vision correction, which has a relatively good range of vision correction compared to frame lenses, and is convenient to wear and carry, and therefore, in great demand. Currently, contact lenses can be divided into two categories: hard contact lenses and soft contact lenses. Among them, the hard contact lenses are optically unaffected by moisture due to their material, and have higher definition in vision correction than the soft contact lenses. Soft contact lenses are soft materials, so that they have better comfort in wearing, and are also easily accepted contact lens products in the market at present.

However, in the current market, there is no contact lens, which can simultaneously have the advantages of hard contact lenses and soft contact lenses, and can improve the wearing comfort level under the condition of ensuring high definition, and the problem to be solved at present is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that the prior contact lens is not provided, and the comfort level of wearing can be improved under the condition of ensuring high definition. The utility model discloses a soft contact lens structure with hard lens inlays the hard lens body and establishes in soft contact lens body hollow structure, and hard lens body covers the optical zone at soft contact lens body middle part safely, can have hard contact lens and soft contact lens's advantage simultaneously, has hard contact lens's high definition on eyesight promptly and soft contact lens's comfort level of wearing, novel structure, think about ingeniously, good application prospect has.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a soft contact lens structure with hard lenses comprises a soft contact lens body, a lubricating film layer is arranged on the surface of the soft contact lens body,

the optical zone in soft stealthy type glasses body middle part is hollow structure, hollow structure's length is greater than soft stealthy type glasses body optical zone's length 2-4mm, and this hollow structure embeds and is equipped with hard lens body, just hard lens body covers the optical zone in soft stealthy type glasses body middle part safely, two tip of hard lens body are connected through the non-optical zone of adhesive with soft stealthy type glasses body, and the crooked radian of hard lens body and soft stealthy type glasses body is unanimous.

In the aforementioned structure of the soft contact lens with the hard lens, the length of the hollow structure is 3mm greater than the length of the optical area of the soft contact lens body.

In the structure of the soft contact lens with the hard lens, the lubricating film layer is made of a polymer material containing acrylic acid, and the type of the lubricating film layer is PAA; or the soft hidden type glasses body is made of polyvinylpyrrolidone (PVP) and the lubricating film layer is coated on the surface of the soft hidden type glasses body when the soft hidden type glasses body is hydrated.

In the structure of the soft contact lens with the hard lens, the soft contact lens body is made of poly hydroxyethyl methacrylate or silicon hydrogel.

In the aforementioned structure of the soft contact lens with a hard lens, the hard lens body is made of polymethyl methacrylate or a copolymer of methyl methacrylate and silicon.

In the structure of the soft contact lens with the hard lens, the adhesive is non-crosslinked polyhydroxyethyl methacrylate with a molecular weight of 5 to 30 ten thousand.

The utility model has the advantages that: the utility model discloses a soft contact lens structure with hard lens, inlay the hard lens body and establish in soft contact lens body hollow structure, hard lens body covers the optical zone at soft contact lens body middle part safely, can have hard contact lens and soft contact lens's advantage simultaneously, have hard contact lens's high definition on eyesight promptly, and soft contact lens comfort level of wearing, and be provided with lubricated thin layer on the surface of soft contact lens body, further improve and wear the effect, novel structure, think about ingeniously, good application prospect has.

Drawings

Fig. 1 is a schematic view of the structure of the soft contact lens with hard lens according to the present invention.

The designations in the drawings have the following meanings:

1: a soft contact lens body; 101: a hollow structure; 2: a hard lens body; 3: lubricating the film layer; 4: an adhesive.

Detailed Description

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

As shown in figure 1, the soft contact lens structure with hard lenses of the utility model comprises a soft contact lens body 1, a lubricating film layer 3 is arranged on the surface of the soft contact lens body 1,

the optical zone at the middle part of the soft invisible glasses body 1 is a hollow structure 101, the length of the hollow structure 101 is larger than the length 2-4mm of the optical zone of the soft invisible glasses body 1, a hard lens body 2 is embedded in the hollow structure 101, the hard lens body 2 safely covers the optical zone at the middle part of the soft invisible glasses body 1, two end parts of the hard lens body 2 are connected with the non-optical zone of the soft invisible glasses body 1 through an adhesive 4, and the hard lens body 2 is consistent with the bending radian of the soft invisible glasses body 1.

Preferably, the length of hollow structure 101 is greater than the 3mm length in the regional optical zone of the soft contact lens body 1, can guarantee that the hard lens body 2 covers the optical zone in the middle part of the soft contact lens body 1 safely, and can avoid two tip adhesives 4 department of the hard lens body 2, improve the definition of wearing this soft contact lens structure with hard lens, do not influence the observation effect in the optical zone, avoid the impression of junction.

Preferably, the lubricating film layer 3 is a polymer material containing acrylic acid, and the type is PAA; or the soft hidden type glasses body 1 is made of polyvinylpyrrolidone (PVP) and the type is PVP, the lubricating film layer 3 is coated on the surface of the soft hidden type glasses body 1 when the soft hidden type glasses body 1 is hydrated, or the soft hidden type glasses body 1 can be coated and formed in a sterilization stage, the lubricating film layer 3 is good in lubricating effect, the friction performance is reduced, and the wearing comfort level can be improved.

Preferably, the soft concealed spectacle body 1 is made of polyhydroxyethyl methacrylate, and the model is Etafilcon A, Polymacon A, Ocufilcon D and the like; or the silicon hydrogel material, the model is Somofilcon A, the hard lens body 2 is polymethyl methacrylate material or copolymer material of methyl methacrylate and silicon, the soft invisible spectacle body 1 is a non-optical area and is used for improving the wearing comfort, and the hard lens body 2 is an optical area and improves the high definition on the eyesight.

Preferably, the material of the adhesive 4 is non-crosslinked polyhydroxyethyl methacrylate with a molecular weight of 5 to 30 ten thousand, and can be used for enhancing the connection firmness of the material interface of the hard lens body 2 and the soft contact lens body 1.

The utility model discloses a soft contact lens structure with hard lens, production process is as follows: the hard lens body 2 of the optical zone can be processed into a required optical zone structure by turning process, the adhesive 4 is jointed with the junction of the subsequent hard lens body 2 and the soft contact lens material, and the structure is matched with the injection molding process for producing the soft contact lens.

To sum up, the utility model discloses a soft contact lens structure with hard lens inlays the hard lens body and establishes in soft contact lens body hollow structure, and hard lens body covers the optical zone at soft contact lens body middle part safely, can have hard contact lens and soft contact lens's advantage simultaneously, have hard contact lens high definition on eyesight promptly and soft contact lens comfort level on wearing to be provided with lubricated thin layer on the surface of soft contact lens body, further improve and wear the effect, and novel structure thinks about ingeniously, has good application prospect.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A structure of soft contact lenses with hard lenses, comprising: comprises a soft concealed spectacle body (1), a lubricating film layer (3) is arranged on the surface of the soft concealed spectacle body (1),

the optical zone at soft stealthy type glasses body (1) middle part is hollow structure (101), the length of hollow structure (101) is greater than the length 2-4mm of soft stealthy type glasses body (1) optical zone, and this hollow structure (101) is embedded to be equipped with hard lens body (2), just hard lens body (2) cover the optical zone at soft stealthy type glasses body (1) middle part safely, two tip of hard lens body (2) are connected with the non-optical zone of soft stealthy type glasses body (1) through adhesive (4), and the crooked radian unanimity of hard lens body (2) and soft stealthy type glasses body (1).

2. A soft contact lens construction with a hard lens according to claim 1, wherein: the length of the hollow structure (101) is 3mm greater than that of the optical area of the soft hidden spectacle body (1).

3. A soft contact lens construction with a hard lens according to claim 1, wherein: the lubricating film layer (3) is made of a polymer material containing acrylic acid, and the type is PAA; or the soft hidden type glasses body is made of polyvinylpyrrolidone (PVP) and the type is PVP, and the lubricating film layer (3) is coated on the surface of the soft hidden type glasses body (1) when the soft hidden type glasses body is hydrated.

4. A soft contact lens construction with a hard lens according to claim 1, wherein: the soft concealed spectacle body (1) is made of polyhydroxyethyl methacrylate or silicon hydrogel.

5. A soft contact lens construction with a hard lens according to claim 1, wherein: the hard lens body (2) is made of polymethyl methacrylate or a copolymer material of methyl methacrylate and silicon.

6. A soft contact lens construction with a hard lens according to claim 1, wherein: the material of the adhesive (4) is non-crosslinked polyhydroxyethyl methacrylate with the molecular weight of 5-30 ten thousand.