Attachment for a contact lens and production method for a contact lens system

Patent metadata

Field	Value
Publication number	US-9526428-B2
Application number	US-201314399516-A
Country	US
Kind code	B2
Filing date	May 8, 2013
Priority date	May 8, 2012
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

An attachment for a contact lens that comprises a first part provided to be held in position against an eye and a second part connected to the first part. The second part is for fixing the attachment to a contact lens. The first part corresponds to a distal side of a contact lens and forms at least one of a sterile or a disinfected bearing surface for the eye. The second part is configured to connect the attachment to the contact lens and to bring the first part to rest against a distal side of the contact lens.

First claim

The invention claimed is:

1. An attachment for a contact lens, the attachment comprising:
a first part provided to be held in position against an eye; and
a second part connected to the first part, the second part for fixing the attachment to a contact lens;
wherein the first part corresponds to a distal side of the contact lens and forms at least one of a sterile or a disinfected bearing surface for the eye, and wherein the second part is configured to connect the attachment to the contact lens and to bring the first part to rest against a distal side of a surface of a lens element of the contact lens, and
wherein the first part is formed to abut the contact lens with a pretensioning transferred from the second part to the first part or with a negative pressure.

2. The attachment according to claim 1 , wherein the attachment is a cap which, with the first part and with the second part, is configured to rest against the contact lens.

3. The attachment according to claim 1 , wherein the attachment is a cap with the first part having a varying thickness in a distal direction.

4. The attachment according to claim 3 , wherein the attachment has a substantially planar proximal side on the first part.

5. The attachment according to claim 1 , wherein the attachment has, in the first part, a wall thickness which is smaller than 10 millimeters.

6. The attachment according to claim 5 , wherein the attachment is formed by a film which is configured to rest substantially over the whole bearing surface with the first part against the distal side of the contact lens and with the second part against a lateral surface of the contact lens.

7. A contact lens system with a contact lens, in particular an optoacoustic contact lens for at least one of eye diagnosis or therapy, and with an attachment comprising:
a first part provided to be held in position against an eye; and
a second part connected to the first part, the second part for fixing the attachment to a contact lens;
wherein the first part corresponds to a distal side of a contact lens and forms at least one of a sterile or a disinfected bearing surface for the eye, and wherein the second part is configured to connect the attachment to the contact lens and to bring the first part to rest against a distal side of a surface of a lens element of the contact lens, and
wherein the first part is formed to abut the contact lens with a pretensioning transferred from the second part to the first part or with a negative pressure.

8. The contact lens system according to claim 7 , wherein a liquid is introduced at an interface between the attachment and the contact lens.

9. A method for producing a contact lens system consisting of an attachment and a contact lens, the method comprising:
providing an attachment including a first part provided to be held in position against an eye, and a second part connected to the first part, the second part for fixing the attachment to the contact lens, wherein the first part corresponds to a distal side of the contact lens and forms at least one of a sterile or a disinfected bearing surface for the eye, and wherein the second part is configured to connect the attachment to the contact lens and to bring the first part to rest against a distal side of a surface of a lens element of the contact lens;
connecting the second part of the attachment to the contact lens such that the second part is configured to be manually removed from the contact lens again;
bringing the first part of the attachment and the contact lens into connection on the distal side of the contact lens, wherein the position of the first part on the distal side is determined by the second part, with the result that the bearing surface for the eye can be provided reversibly on the contact lens,
wherein the first part is formed to abut the contact lens with a pretensioning transferred from the second part to the first part or with a negative pressure.

10. The method according to claim 9 , further comprising bringing the first part to rest against the distal side of the contact lens with the pretensioning via the second part, with the result that the first part rests flat against the distal side.

11. The method according to claim 10 further comprising using at least one of a liquid or a gel which lead to the high transmission for a frequency range of 0.8 MHz to 1.2 MHz.

12. The method according to claim 9 further comprising connecting the attachment to the contact lens such that a total acoustic transmission of more than 85 percent is achieved.

13. A method for producing a contact lens system consisting of an attachment and a contact lens, the method comprising:
providing an attachment including a first part provided to be held in position against an eye, and a second part connected to the first part, the second part for fixing the attachment to a contact lens, wherein the first part corresponds to a distal side of a contact lens and forms at least one of a sterile or a disinfected bearing surface for the eye, and wherein the second part is configured to connect the attachment to the contact lens and to bring the first part to rest against a distal side of the contact lens;
connecting the second part of the attachment to the contact lens such that the second part is configured to be manually removed from the contact lens again;
bringing the first part of the attachment and the contact lens into connection on a distal side of the contact lens, wherein the position of the first part on the distal side is determined by the second part, with the result that the bearing surface for the eye can be provided reversibly on the contact lens; and
connecting the attachment to the contact lens such that a total acoustic transmission of more than 50 percent is achieved.

14. A method for producing a contact lens system consisting of an attachment and a contact lens, the method comprising:
providing an attachment including a first part provided to be held in position against an eye, and a second part connected to the first part, the second part for fixing the attachment to a contact lens, wherein the first part corresponds to a distal side of a contact lens and forms at least one of a sterile or a disinfected bearing surface for the eye, and wherein the second part is configured to connect the attachment to the contact lens and to bring the first part to rest against a distal side of the contact lens;
connecting the second part of the attachment to the contact lens such that the second part is configured to be manually removed from the contact lens again;
bringing the first part of the attachment and the contact lens into connection on a distal side of the contact lens, wherein the position of the first part on the distal side is determined by the second part, with the result that the bearing surface for the eye can be provided reversibly on the contact lens;
bringing the first part to rest against the distal side of the contact lens with a pretensioning via the second part, with the result that the first part rests flat against the distal side; and
using at least one of a liquid or a gel which leads to the high transmission for a frequency range of 0.5 MHz to 20 MHz.

Assignees

• Zeiss Carl Meditec Ag

Inventors

• Denner Rene
• Dick Manfred
• Kunath-Fandrei Gerald

Classifications

• B29D11/00038

  Production of contact lenses · CPC title

• A61B2562/143

  for coupling microwaves · CPC title

• B29K2033/12

  Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate · CPC title

• A61B3/117

  for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes · CPC title

• A61B2562/146

  for optical coupling · CPC title