RING-SHAPED DEVICE

• US 20120022473A1
• Filed: 12/25/2009
• Published: 01/26/2012
• Est. Priority Date: 02/10/2009
• Status: Active Grant

• Current Assignee: Seed Co., Ltd., Senju Pharmaceutical Company Limited
• Original Assignee: Seed Co., Ltd., Senju Pharmaceutical Company Limited
• Inventors: Sato, Takao, Matsunaga, Toru, Fukushima, Tsutomu, Shikamura, Yuko, Yamazaki, Yoshiko
• Granted Patent: US 9,486,362 B2
• Time in Patent Office: Days
• US Class Current: 604/300
• CPC Class Codes: A61F 9/0017 implantable in, or in contact with, the eye, e.g. ocular inserts
• CPC Class Codes: A61F 9/04 Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing eye-bandages A61F13/12; protective face-masks A41D13/11; protectors for shampooing A45D
• CPC Class Codes: A61P 27/02 Ophthalmic agents
• CPC Class Codes: G02C 7/04 Contact lenses for the eyes disinfection or sterilisation of contact lenses A61L12/00

Abstract

The present invention aims to provide a ring-shaped device superior in the wearing comfort and intraocular stability while being worn on the eye.

Provided is a ring-shaped device to be worn on the scleral surface, which is characterized in that it has an opening to expose the cornea and an intermediate portion between an inner edge portion and an outer edge portion has a maximum thickness.

Claims

1. A ring-shaped device to be worn on the scleral surface, which has an opening to expose the cornea and an intermediate portion between an inner edge portion and an outer edge portion, wherein the intermediate portion has a maximum thickness.

2. The ring-shaped device according to claim 1, wherein the inner edge portion has a thickness of 0.3 mm or below, the outer edge portion has a thickness of 0.3 mm or below, and the intermediate portion has a thickness of 0.4 mm or below.

3. The ring-shaped device according to claim 1, wherein the inner edge portion has a thickness within the range of 0.1-0.3 mm, the outer edge portion has a thickness within the range of 0.15-0.3 mm, and the intermediate portion has a thickness within the range of 0.2-0.4 mm.

4. A ring-shaped device comprising a drug and capable of delivering the drug to posterior ocular tissues by being worn on the scleral surface, which device having an opening to expose the cornea.

5. The ring-shaped device according to claim 4, comprising an intermediate portion having a maximum thickness between an inner edge portion and an outer edge portion.

6. The ring-shaped device according to claim 5, wherein the inner edge portion has a thickness of 0.3 mm or below, the outer edge portion has a thickness of 0.3 mm or below, and the intermediate portion has a thickness of 0.4 mm or below.

7. The ring-shaped device according to claim 5, wherein the inner edge portion has a thickness within the range of 0.1-0.3 mm, the outer edge portion has a thickness within the range of 0.15-0.3 mm, and the intermediate portion has a thickness within the range of 0.2-0.4 mm.

8. A method of transferring a drug contained in a ring-shaped device to posterior ocular tissues, comprising applying the device on the scleral surface, which device having an opening to expose the cornea.