CHRISTOPHER N. TA, MD
Medical Practice at Pasteur Dr, Palo Alto, CA
License number
California A54687
Category
Medical Practice
Type
Ophthalmology
Address
Address
300 Pasteur Dr, Palo Alto, CA 94305
Phone
(650) 498-7103
Professional information
Dr. Christopher N Ta, Palo Alto CA - MD (Doctor of Medicine)
Specialties:
Ophthalmology
Address:
Stanford Eye Institute
2452 Watson Ct STE 2, Palo Alto 94303
(650) 723-6995 (Phone)
2452 Watson Ct STE 2, Palo Alto 94303
(650) 723-6995 (Phone)
Certifications:
Ophthalmology, 2011
Awards:
Healthgrades Honor Roll
Languages:
English
Hospitals:
Stanford Eye Institute
2452 Watson Ct STE 2, Palo Alto 94303
Stanford Hospital and Clinics
300 Pasteur Dr, Stanford 94305
2452 Watson Ct STE 2, Palo Alto 94303
Stanford Hospital and Clinics
300 Pasteur Dr, Stanford 94305
Education:
Medical School
University of Mn Med Sch
Graduated: 1994
Kaiser Permanente
Stanford U
U Tex Sw
University of Mn Med Sch
Graduated: 1994
Kaiser Permanente
Stanford U
U Tex Sw
Christopher N Ta, Stanford CA
Specialties:
Ophthalmologist
Address:
300 Pasteur Dr, Stanford, CA 94305
2680 Hanover St, Palo Alto, CA 94304
900 Blake Wilbur Dr, Palo Alto, CA 94304
2680 Hanover St, Palo Alto, CA 94304
900 Blake Wilbur Dr, Palo Alto, CA 94304
Education:
University of Minnesota, Medical School - Doctor of Medicine
Board certifications:
American Board of Ophthalmology Certification in Ophthalmology
Christopher Nguyen Ta, Palo Alto CA
Specialties:
Ophthalmology
Work:
Byers Eye Institute Stanford
2452 Watson Ct, Palo Alto, CA 94303 Stanford University
900 Blake Wilbur Dr, Palo Alto, CA 94304 Stanford University
300 Pasteur Dr, Stanford, CA 94305
2452 Watson Ct, Palo Alto, CA 94303 Stanford University
900 Blake Wilbur Dr, Palo Alto, CA 94304 Stanford University
300 Pasteur Dr, Stanford, CA 94305
Education:
University of Minnesota, Twin Cities (1994)
Interpenetrating Polymer Network Hydrogel Contact Lenses
US Patent:
2011016, Jul 7, 2011
Filed:
Dec 20, 2010
Appl. No.:
12/928820
Inventors:
David Myung - Santa Clara CA, US
Jaan Noolandi - La Jolla CA, US
Christopher N. Ta - Palo Alto CA, US
Curtis W. Frank - Cupertino CA, US
Laura Hartmann - Berlin, DE
Jaan Noolandi - La Jolla CA, US
Christopher N. Ta - Palo Alto CA, US
Curtis W. Frank - Cupertino CA, US
Laura Hartmann - Berlin, DE
International Classification:
G02C 7/04, C08L 33/02, C08L 77/00
US Classification:
523106
Abstract:
The present invention provides interpenetrating polymer network hydrogels that have high oxygen permeability, strength, water content, and resistance to protein adsorption. The hydrogels include two interpenetrating polymer networks. The first polymer network is based on a hydrophilic telechelic macromonomer. The second polymer network is based on a hydrophilic monomer. The hydrophilic monomer is polymerized and cross-linked to form the second polymer network in the presence of the first polymer network. The telechelic macromonomer preferably has a molecular weight of between about 575 Da and about 20,000 Da. Mixtures of molecular weights may also be used. In a preferred embodiment, the hydrophilic telechelic macromonomer is PEG-diacrylamide and the hydrophilic monomer is an acrylic-based monomer. The material is designed to serve as a contact lens.
Interpenetrating Polymer Network Hydrogel Corneal Prosthesis
US Patent:
2011018, Jul 28, 2011
Filed:
Dec 20, 2010
Appl. No.:
12/928818
Inventors:
David Myung - Santa Clara CA, US
Christopher N. Ta - Palo Alto CA, US
Curtis W. Frank - Cupertino CA, US
Won-Gun Koh - Kyunggi Yongin, KR
Jaan Noolandi - La Jolla CA, US
Laura Hartmann - Berlin, DE
Christopher N. Ta - Palo Alto CA, US
Curtis W. Frank - Cupertino CA, US
Won-Gun Koh - Kyunggi Yongin, KR
Jaan Noolandi - La Jolla CA, US
Laura Hartmann - Berlin, DE
International Classification:
A61K 9/00, A61K 35/12, A61K 38/02, A61K 38/16, A61K 31/197, A61K 31/70, A61K 31/7052, A61K 39/395, A61K 38/18, A61P 27/02
US Classification:
424427, 424487, 424 937, 514 11, 514 212, 514561, 514 23, 514 43, 4241301, 514 76
Abstract:
The present invention provides materials that have high glucose and oxygen permeability, strength, water content, and resistance to protein adsorption. The materials include an interpenetrating polymer network (IPN) hydrogel that is coated with biomolecules. The IPN hydrogels include two interpenetrating polymer networks. The first polymer network is based on a hydrophilic telechelic macromonomer. The second polymer network is based on a hydrophilic monomer. The hydrophilic monomer is polymerized and cross-linked to form the second polymer network in the presence of the first polymer network. In a preferred embodiment, the hydrophilic telechelic macromonomer is PEG-diacrylamide, PEG-diacrylate or PEG-dimethacrylate and the hydrophilic monomer is an acrylic-based monomer. Any biomolecules may be linked to the IPN hydrogels, but are preferably biomolecules that support the growth of cornea-derived cells. The material is designed to serve as a corneal prosthesis.
Artificial Corneal Implant
US Patent:
2011018, Jul 28, 2011
Filed:
Dec 20, 2010
Appl. No.:
12/928819
Inventors:
David Myung - Santa Clara CA, US
Jaan Noolandi - La Jolla CA, US
Alan J. Smith - Grass Valley CA, US
Curtis W. Frank - Cupertino CA, US
Christopher N. Ta - Palo Alto CA, US
Yin Hu - Newark CA, US
Won-Gun Koh - Kyunggi Yongin, KR
Michael R. Carrasco - Cupertino CA, US
Laura Hartmann - Berlin, DE
Jaan Noolandi - La Jolla CA, US
Alan J. Smith - Grass Valley CA, US
Curtis W. Frank - Cupertino CA, US
Christopher N. Ta - Palo Alto CA, US
Yin Hu - Newark CA, US
Won-Gun Koh - Kyunggi Yongin, KR
Michael R. Carrasco - Cupertino CA, US
Laura Hartmann - Berlin, DE
International Classification:
A61F 2/14
US Classification:
623 516
Abstract:
A material that can be applied as implants designed to artificially replace or augment the cornea, such as an artificial cornea, corneal onlay, or corneal inlay (intrastromal lens) is provided. The artificial corneal implant has a double network hydrogel with a first network interpenetrated with a second network. The first network and the second network are based on biocompatible polymers. At least one of the network polymers is based on a hydrophilic polymer. The artificial cornea or implant has epithelialization promoting biomolecules that are covalently linked to the surface of the double network hydrogel using an azide-active-ester chemical linker. Corneal epithelial cells or cornea-derived cells are adhered to the biomolecules. The double network has a physiologic diffusion coefficient to allow passage of nutrients to the adhered cells.
Artificial Cornea
US Patent:
2004004, Mar 11, 2004
Filed:
Jun 18, 2003
Appl. No.:
10/465040
Inventors:
Jaan Noolandi - Palo Alto CA, US
Christopher Ta - Palo Alto CA, US
Philip Huie - Cupertino CA, US
Alan Smith - Redwood City CA, US
Robert Waymouth - Stanford CA, US
Mark Blumenkranz - Portola Valley CA, US
Christopher Ta - Palo Alto CA, US
Philip Huie - Cupertino CA, US
Alan Smith - Redwood City CA, US
Robert Waymouth - Stanford CA, US
Mark Blumenkranz - Portola Valley CA, US
International Classification:
A61F002/14
US Classification:
623/005140, 623/023760
Abstract:
The invention provides implants suitable for use as an artificial cornea, and methods for making and using such implants. Artificial corneas having features of the invention may be two-phase artificial corneas, or may be three phase artificial corneas. These artificial corneas have a flexible, optically clear central core and a hydrophilic, porous skirt, both of which are biocompatible and allow for tissue integration. A three-phase artificial cornea will further have an interface region between the core and skirt. The artificial corneas have a high degree of ocular tolerance, and allow for tissue integration into the skirt and for epithelial cell growth over the surface of the prosthesis. The use of biocompatible material avoids the risk of disease transmission inherent with corneal transplants, and acts to minimize post-operative inflammation and so to reduce the chance or severity of tissue necrosis following implantation of the synthetic cornea onto a host eye.