Richard A Lindstrom

US Patent:

52043258, Apr 20, 1993

Filed:

May 3, 1991

Appl. No.:

7/695332

Inventors:

Richard L. Lindstrom - Plymouth MN
Debra Skelnik - Cambridge MN

International Classification:

A61K 3700
A61K 3726
A61K 3736

US Classification:

514 4

Abstract:

Viscoelastic solution including a buffered solution, 0. 01-8% chondroitin sulfate, 0. 1-8% hydroxypropyl methylcellulose, pH adjusted to 6. 0-8. 0 at a osmolality between 200-400 mOsmol/L. The buffered solution can be HEPES buffered minimum essential media (MEM), phosphate buffer saline (PBS), buffered balanced salt solution, or TC199. A cell growth factor or cell growth supplement is included in the solution.

US Patent:

50190849, May 28, 1991

Filed:

Aug 6, 1986

Appl. No.:

6/893785

Inventors:

James E. Aysta - Stillwater MN
Richard L. Lindstrom - Wayzata MN
Debra L. Skelnik - Cambridge MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

A61B 1732
A45C 1104

US Classification:

606107

Abstract:

A corneal holder, amenable for use in both a corneal storage system and a corneal cutting system with minimal physical manipulation of the corneal tissue itself. The holder provides a passageway through the apertures of both a base member and a cap member that is configured to allow a cutting device to be passed into cutting contact with a predetermined portion of the corneal tissue. The holder allows radial orientation of the predetermined portion in order to limit astigmatism; as well as constriction of the periphery of the corneal tissue during storage in order to alleviate swelling of the tissue due to fluid absorption.

US Patent:

50137140, May 7, 1991

Filed:

Dec 15, 1988

Appl. No.:

7/284533

Inventors:

Richard L. Lindstrom - Plymouth MN
Debra Skelnik - Cambridge MN

International Classification:

A61K 3700
A61K 3726
A61K 3736

US Classification:

514 4

Abstract:

Viscoelastic solution including a buffered solution, 0. 01-8% chondroitin sulfate, 0. 1-8% hydroxypropyl methylcellulose, pH adjusted to 6. 0-8. 0 at a osmolality between 200-400 mOsmol/L. The buffered solution can be HEPES buffered minimum essential media (MEM), phosphate buffer saline (PBS), buffered balanced salt solution, or TC199. A cell growth factor or cell growth supplement is included in the solution.