Mark A Cox

US Patent:

7927372, Apr 19, 2011

Filed:

Jul 31, 2008

Appl. No.:

12/183237

Inventors:

Mark A. Cox - Dallas TX, US
Douglas C. Williamson - Coppell TX, US
Peter J. Richardson - Buckinghamshire, GB
Barrie D. Soloway - Long Beach NY, US

Assignee:

Refocus Group, Inc. - Dallas TX

International Classification:

A61F 2/14
A61F 9/013
A61F 9/00

US Classification:

623 41

Abstract:

A scleral prosthesis includes a prosthesis body having first and second side surfaces and a cavity extending through the prosthesis body from the first side surface to the second side surface. The scleral prosthesis also includes a crossbar configured to be inserted into the cavity, where the crossbar is wider than the prosthesis body. The cavity could define a narrower central opening and wider end openings, and the crossbar could have a narrower central portion and wider end portions. Also, the prosthesis body could include multiple cavities, and the scleral prosthesis could include multiple crossbars configured to be inserted into the multiple cavities. Each of the cavities could be located proximate to an end of the prosthesis body. The crossbar could be substantially straight with a cylindrical cross section.

US Patent:

8083759, Dec 27, 2011

Filed:

Oct 29, 2008

Appl. No.:

12/260694

Inventors:

Mark A. Cox - Dallas TX, US
Douglas C. Williamson - Coppell TX, US
Gary A. Richardson - Rochester NY, US
Andrew J. Scherer - Trabuco Canyon CA, US
Timothy J. Payne - Santa Ana CA, US

Assignee:

Refocus Ocular, Inc. - Dallas TX

International Classification:

A61F 9/00

US Classification:

606166

Abstract:

A surgical tool includes a surgical blade configured to be moved to form an incision. The surgical tool also includes a wire configured to cause movement of the surgical blade. The surgical tool further includes an actuator configured to shorten a length of the wire to cause the movement of the surgical blade. The surgical tool could be configured to move the surgical blade in a first direction and then in a second direction in response to a single shortening of the wire. Also, the wire could represent a first wire, the surgical tool could include a second wire, and the surgical tool could be configured to move the surgical blade in a first direction in response to shortening the first wire and to move the surgical blade in a second direction in response to shortening the second wire.

US Patent:

8409277, Apr 2, 2013

Filed:

Jul 11, 2007

Appl. No.:

11/827382

Inventors:

Mark A. Cox - Dallas TX, US
Douglas C. Williamson - Coppell TX, US
Peter J. Richardson - Buckinghamshire, GB
Michael K. Smolek - Pearl River LA, US
Barrie D. Soloway - Long Beach NY, US
Rex O. Bare - Lake Forest CA, US
Andrew J. Scherer - Trabuco Canyon CA, US
Timothy J. Payne - Santa Ana CA, US
Gene W. Zdenek - Northridge CA, US

Assignee:

Refocus Ocular, Inc. - Dallas TX

International Classification:

A61F 2/14

US Classification:

623 41, 604 8

Abstract:

One example scleral prosthesis includes a first free end and a second free end, each wider than a middle portion of the scleral prosthesis. Multiple first portions form the first end of the scleral prosthesis. The first portions are separated along at least half of a length of the scleral prosthesis. Multiple second portions may form the second end of the scleral prosthesis, and the second portions may be separated along less than a quarter of the length of the scleral prosthesis. An implantation device can be used to facilitate implantation of a scleral prosthesis. The implantation device includes a first end portion configured to be inserted into a scleral tunnel of an eye. The implantation device also includes a second end portion configured to receive the scleral prosthesis. A rod with a tapered and rounded end can be partially inserted into the first end portion of the implantation device.

US Patent:

8460325, Jun 11, 2013

Filed:

Dec 7, 2011

Appl. No.:

13/314011

Inventors:

Mark A. Cox - Dallas TX, US
Douglas C. Williamson - Coppell TX, US
Gary A. Richardson - Rochester NY, US
Andrew J. Scherer - Trabuco Canyon CA, US
Timothy J. Payne - Santa Ana CA, US

Assignee:

Refocus Ocular, Inc. - Dallas TX

International Classification:

A61F 9/00

US Classification:

606166

Abstract:

A surgical tool includes a surgical blade configured to be moved to form an incision. The surgical tool also includes a wire configured to cause movement of the surgical blade. The surgical tool further includes an actuator configured to shorten a length of the wire to cause the movement of the surgical blade. The surgical tool could be configured to move the surgical blade in a first direction and then in a second direction in response to a single shortening of the wire. Also, the wire could represent a first wire, the surgical tool could include a second wire, and the surgical tool could be configured to move the surgical blade in a first direction in response to shortening the first wire and to move the surgical blade in a second direction in response to shortening the second wire.

US Patent:

20120078280, Mar 29, 2012

Filed:

Dec 7, 2011

Appl. No.:

13/313789

Inventors:

Mark A. Cox - Dallas TX, US
Douglas C. Williamson - Coppell TX, US
Gary A. Richardson - Rochester NY, US
Andrew J. Scherer - Trabuco Canyon CA, US
Timothy J. Payne - Santa Ana CA, US

Assignee:

Refocus Ocular, Inc. - Dallas TX

International Classification:

A61B 17/32

US Classification:

606171

Abstract:

A surgical tool includes a surgical blade configured to be moved to form an incision. The surgical tool also includes a wire configured to cause movement of the surgical blade. The surgical tool further includes an actuator configured to shorten a length of the wire to cause the movement of the surgical blade. The surgical tool could be configured to move the surgical blade in a first direction and then in a second direction in response to a single shortening of the wire. Also, the wire could represent a first wire, the surgical tool could include a second wire, and the surgical tool could be configured to move the surgical blade in a first direction in response to shortening the first wire and to move the surgical blade in a second direction in response to shortening the second wire.

US Patent:

20130103143, Apr 25, 2013

Filed:

Oct 17, 2012

Appl. No.:

13/654249

Inventors:

Mark A. Cox - Dallas TX, US
Douglas C. Williamson - Coppell TX, US
Gene W. Zdenek - Northridge CA, US
Peter J. Richardson - Buckinghamshire, GB
Michael K. Smolek - Pearl River LA, US
Barrie D. Soloway - Long Beach NY, US
Rex O. Bare - Lake Forest CA, US
Andrew J. Scherer - Trabuco Canyon CA, US
Timothy J. Payne - Santa Ana CA, US

Assignee:

REFOCUS GROUP, INC. - Dallas TX

International Classification:

A61F 2/14

US Classification:

623 41

Abstract:

A system includes a scleral prosthesis and an insert. The scleral prosthesis includes an elongated body having a first free end and a second free end opposite the first end. A maximum width of the body at each end is wider than a maximum width of the body between the ends. The body includes multiple first portions that form the first end of the body and a part of the body between the ends. The first portions are separated lengthwise along a substantial portion of a total length of the body. The first portions are biased so that they maintain separation from one another without external interference but are configured to be pushed towards each other. The insert is configured to be placed between the first portions to maintain a separation of the first portions. The body and/or the insert could be formed using one or more magnetic materials.

US Patent:

20210000589, Jan 7, 2021

Filed:

Sep 24, 2020

Appl. No.:

17/031600

Inventors:

- Dallas TX, US
Mark A. Cox - Dallas TX, US
Douglas C. Williamson - Coppell TX, US
Gene W. Zdenek - Northridge CA, US
Michael K. Smolek - Pearl River LA, US
Barrie D. Soloway - Long Beach NY, US
Rex O. Bare - Lake Forest CA, US
Andrew J. Scherer - Trabuco Canyon CA, US
Timothy J. Payne - Santa Ana CA, US
Peter J. Richardson - Buckinghamshire, GB

International Classification:

A61F 2/16
A61F 2/14
A61F 9/00
A61F 9/007
A61B 17/08

Abstract:

A system includes a scleral prosthesis and an insert. The scleral prosthesis includes a first end configured to be pulled through a scleral tunnel in an eye and a second end. Each end is wider than a middle portion of the scleral prosthesis. Two portions form the first end of the scleral prosthesis, and the portions are separated along at least half of a length of the scleral prosthesis. The scleral prosthesis is formed from a single integrated piece of material. The second end is undivided. The insert is configured to be placeable between the two portions. The two portions may be separated from one another without external interference, and the two portions may be configured to be pushed towards each other in order to reduce a width of the first end and then separate after release.

US Patent:

20190216596, Jul 18, 2019

Filed:

Mar 27, 2019

Appl. No.:

16/366068

Inventors:

- Dallas TX, US
Mark A. Cox - Dallas TX, US
Douglas C. Williamson - Coppell TX, US
Gene W. Zdenek - Northridge CA, US
Peter J. Richardson - Buckinghamshire, GB
Michael K. Smolek - Pearl River LA, US
Barrie D. Soloway - Long Beach NY, US
Rex O. Bare - Lake Forest CA, US
Andrew J. Scherer - Trabuco Canyon CA, US
Timothy J. Payne - Santa Ana CA, US

International Classification:

A61F 2/16
A61F 9/007
A61F 9/00
A61F 2/14
A61B 17/08

Abstract:

A scleral prosthesis includes an elongated body having a first free end, a second free end opposite the first free end, a central portion extending between and coupling the ends, and a convex top surface extending lengthwise along at least part of the central portion. A maximum width of the body at each end is wider than a maximum width of the body along the central portion. The scleral prosthesis also includes an insert having a convex top surface extending lengthwise along at least part of the insert. The body includes multiple portions that form the first end and part of the central portion. The portions are separated lengthwise along part of a total length of the body by empty space, which tapers and then expands in width. The insert has a shape complementary to the empty space such that the insert tapers and then expands in width.