DR. CLARK DOUGLAS WITHERSPOON, M.D.
Medical Practice at University Blvd, Birmingham, AL

5047009, Sep 10, 1991

Feb 12, 1990

7/483161

Robert E. Morris - Birmingham AL
Clark D. Witherspoon - Birmingham AL
William E. Goggans - Pinson AL

Vitreoretinal Development, Inc. - Birmingham AL

A61M 3700

604 23

Ocular perfusion during intraocular surgery of the anterior or posterior ocular cavity is optimized through the method of using a gas pump having a discernible and controllable output pressure to pressurize a reservoir of liquid infusate, which is supplied under pressure to a surgical infusion instrument for perfusion of the selected ocular chamber (Gas Forced Liquid Infusion, GFLI). The infusate selection and the infusate pressure can be controlled with a high degree of accuracy and both can be rapidly varied by audible command. Preferentially a human sensible indication of pressure is constantly available at the gas pump.

4813927, Mar 21, 1989

Sep 22, 1987

7/099533

Robert E. Morris - Birmingham AL
Clark D. Witherspoon - Birmingham AL
William E. Goggans - Pinson AL

Vitreoretinal Development, Inc. - Birmingham AL

A61M 3700

604 23

Apparatus for us in intraocular surgical procedures utilizes a plurality of flexible conduits and a control valve to selectively supply an infusion cannula with either fluid or air. The air and fluid are pressurized for infusion by a continuous infusion air pump and supplied to the valve by parallel lengths of flexible tubing. The apparatus may be used to monitor and control the infusion pressure or to switch the infusion agent in a minimal time.

5032111, Jul 16, 1991

Nov 20, 1989

7/438170

Robert E. Morris - Birmingham AL
Clark D. Witherspoon - Birmingham AL
William E. Goggans - Pinson AL

Vitreoretinal Development, Inc. - Birmingham AL

A61M 3700

604 23

Ocular perfusion during intraocular surgery of the anterior or posterior ocular cavity is optimized through the method of using a gas pump having a discernible and controllable output pressure to pressurize a reservoir of liquid infusate, which is supplied under pressure to a surgical infusion instrument for perfusion of the selected ocular chamber (Gas Forced Liquid Infusion, GFLI). The infusate selection and the infusate pressure can be controlled with a high degree of accuracy and both can be rapidly varied by audible command. Preferentially a human sensible indication of pressure is constantly available at the gas pump.

4900301, Feb 13, 1990

May 23, 1988

7/197567

Robert E. Morris - Birmingham AL
Clark D. Witherspoon - Birmingham AL
William E. Goggans - Pinson AL

Vitreoretinal Development, Inc. - Birmingham AL

A61M 3700

604 23

Ocular perfusion during intraocular surgery of the anterior or posterior ocular cavity is optimized through the method of using a gas pump having a discernible and controllable output pressure to pressurize a reservoir of liquid infusate, which is supplied under pressure to a surgical infusion instrument for perfusion of the selected ocular chamber (Gas Forced Liquid Infusion, GFLI). The infusate selection and the infusate pressure can be controlled with a high degree of accuracy and both can be rapidly varied by audible command. Preferentially a human sensible indication of pressure is constantly available at the gas pump.

6886565, May 3, 2005

Oct 18, 2002

10/274284

Robert E. Morris - Birmingham AL, US
Clark D. Witherspoon - Birmingham AL, US
W. Brad Priester - Memphis TN, US

Innovative Retinal Products LLC - Birmingham AL

A61F013/00

128846, 128858, 128898, 623 663, 606107, 604289

A macula cover having a flexible sheet member and including an contact surface, an outer surface, a perimeter, and an annular stiffener. The sheet member is sized to cover the fovea and the parafoveal area of the macula during retinal surgery.