DR. JOHN ZHANG, M.D.
Osteopathic Medicine at Mill Creek Blvd, Bothell, WA

License number
Washington MD0000050430
Category
Osteopathic Medicine
Type
Dermatopathology
License number
Washington MD60482188
Category
Osteopathic Medicine
Type
Dermatopathology
Address
Address
15906 Mill Creek Blvd STE 105, Bothell, WA 98012
Phone
(425) 385-2009
(425) 939-0807 (Fax)

Professional information

John Zhang Photo 1

Sheath For Use With An Ultrasound Element

US Patent:
6723063, Apr 20, 2004
Filed:
Jun 29, 1998
Appl. No.:
09/107078
Inventors:
John Zhang - Bothell WA
Gary Lichttenegger - Woodinville WA
James E. Rodriguey - Seattle WA
Katsuro Tachibana - Fukuoka, JP
Assignee:
Ekos Corporation - Bothell WA
International Classification:
A61B 1720
US Classification:
604 22
Abstract:
A system for delivering ultrasound energy to a treatment section in a vessel is disclosed. The system includes a sheath with a utility lumen and an energy delivery section at least partially constructed from a material which transmits ultrasound energy. The system also includes a drug delivery member having a plurality of drug delivery ports which are positioned adjacent the energy delivery section. The system further includes an elongated body including at least one ultrasound element and configured to be movably positioned within the utility lumen to transmit the ultrasound energy from the ultrasound element through the energy delivery section.


John Zhang Photo 2

Ultrasound Assembly For Use With A Catheter

US Patent:
6582392, Jun 24, 2003
Filed:
Aug 16, 1999
Appl. No.:
09/375162
Inventors:
Frederick J. Bennett - Issaquah WA
John Zhang - Bothell WA
Gary Lichttenegger - Woodinville WA
James E. Rodriguey - Seattle WA
Katsuro Tachibana - Fukuoka, JP
Assignee:
Ekos Corporation - Bothell WA
International Classification:
A61B 1720
US Classification:
604 22, 601 2
Abstract:
The invention relates to a catheter system. The system comprises a catheter body having a chamber containing a low acoustic impedance medium. The catheter body includes an elongated body with an external surface and an ultrasound transducer having an external side between a first end and a second end. The ultrasound transducer is positioned over the external surface of the elongated body such that the first end is adjacent to the chamber.


John Zhang Photo 3

Sheath For Use With An Ultrasound Element

US Patent:
2012008, Apr 12, 2012
Filed:
Dec 20, 2011
Appl. No.:
13/332226
Inventors:
JOHN ZHANG - BOTHELL WA, US
GARY LICHTTENEGGER - WOODINVILLE WA, US
JAMES E. RODRIGUEY - SEATTLE WA, US
KATSURO TACHIBANA - FUKUOKA-SHI, JP
Assignee:
EKOS CORPORATION - Bothell WA
International Classification:
A61M 37/00
US Classification:
604 22
Abstract:
An apparatus for delivering ultrasound energy and a drug solution to a treatment site in a vessel is disclosed. The apparatus includes an elongate, hollow sheath having a distal opening and an energy delivery section at least partially constructed from a material that transmits ultrasound energy. The apparatus also includes a drug delivery lumen positioned along at least a portion of the sheath, the drug delivery lumen having at least one drug delivery port within the energy delivery section. The apparatus further includes an elongate body having an ultrasound element, the elongate body configured to be movably positioned within the sheath, such that ultrasonic energy can be transmitted from the ultrasound element through the energy delivery section.


John Zhang Photo 4

Sheath For Use With An Ultrasound Element

US Patent:
7413556, Aug 19, 2008
Filed:
Feb 18, 2003
Appl. No.:
10/369270
Inventors:
John Zhang - Bothell WA, US
Gary Lichttenegger - Woodinville WA, US
James E. Rodriguey - Seattle WA, US
Katsuro Tachibana - Fukuoka, JP
Assignee:
Ekos Corporation - Bothell WA
International Classification:
A61B 17/20
US Classification:
604 22, 604107, 604108, 604500, 604507
Abstract:
A system for delivering ultrasound energy to a treatment section in a vessel is disclosed. The system includes a sheath with a utility lumen and an energy delivery section at least partially constructed from a material which transmits ultrasound energy. The system also includes a drug delivery member having a plurality of drug delivery ports which are positioned adjacent the energy delivery section. The system further includes an elongated body including at least one ultrasound element and configured to be movably positioned within the utility lumen to transmit the ultrasound energy from the ultrasound element through the energy delivery section.


John Zhang Photo 5

Sheath For Use With An Ultrasound Element

US Patent:
2004001, Jan 22, 2004
Filed:
Feb 18, 2003
Appl. No.:
10/369271
Inventors:
John Zhang - Bothell WA, US
Gary Lichttenegger - Woodinville WA, US
James Rodriguey - Seattle WA, US
Katsuro Tachibana - Fukuoka-shi, JP
International Classification:
A61B017/20
US Classification:
604/022000
Abstract:
A system for delivering ultrasound energy to a treatment section in a vessel is disclosed. The system includes a sheath with a utility lumen and an energy delivery section at least partially constructed from a material which transmits ultrasound energy. The system also includes a drug delivery member having a plurality of drug delivery ports which are positioned adjacent the energy delivery section. The system further includes an elongated body including at least one ultrasound element and configured to be movably positioned within the utility lumen to transmit the ultrasound energy from the ultrasound element through the energy delivery section.


John Zhang Photo 6

Sheath For Use With An Ultrasound Element

US Patent:
2007011, May 17, 2007
Filed:
May 3, 2006
Appl. No.:
11/418491
Inventors:
John Zhang - Bothell WA, US
Gary Lichttenegger - Woodinville WA, US
James Rodriguey - Seattle WA, US
Katsuro Tachibana - Fukuoka-shi, JP
International Classification:
A61B 8/00, A61M 31/00, A61M 37/00
US Classification:
600437000, 604093010
Abstract:
A system for delivering ultrasound energy to a treatment section in a vessel is disclosed. The system includes a sheath with a utility lumen and an energy delivery section at least partially constructed from a material which transmits ultrasound energy. The system also includes a drug delivery member having a plurality of drug delivery ports which are positioned adjacent the energy delivery section. The system further includes an elongated body including at least one ultrasound element and configured to be movably positioned within the utility lumen to transmit the ultrasound energy from the ultrasound element through the energy delivery section.


John Zhang Photo 7

Ultrasound Catheter For Providing A Therapeutic Effect To A Vessel Of A Body

US Patent:
2012009, Apr 19, 2012
Filed:
Dec 21, 2011
Appl. No.:
13/333922
Inventors:
Frederick J. Bennett - Issaquah WA, US
John Zhang - Bothell WA, US
Gary Lichttenegger - Woodinville WA, US
James E. Rodriguey - Seattle WA, US
Katsuro Tachibana - Fukuoka-shi, JP
Assignee:
EKOS CORPORATION - Bothell WA
International Classification:
A61M 25/00
US Classification:
604 22
Abstract:
The invention relates to a catheter system. The system comprises a catheter body having a chamber containing a low acoustic impedance medium. The catheter body includes an elongated body with an external surface and an ultrasound transducer having an external side between a first end and a second end. The ultrasound transducer is positioned over the external surface of the elongated body such that the first end is adjacent to the chamber.


John Zhang Photo 8

Ultrasound Catheter With Utility Lumen

US Patent:
7186246, Mar 6, 2007
Filed:
Mar 6, 2003
Appl. No.:
10/383295
Inventors:
Frederick J. Bennett - Issaquah WA, US
John Zhang - Bothell WA, US
Gary Lichttenegger - Woodinville WA, US
James E. Rodriguey - Seattle WA, US
Katsuro Tachibana - Fukuoka, JP
Assignee:
Ekos Corporation - Bothell WA
International Classification:
A61M 31/00
US Classification:
604500, 604 22, 606169, 601 2
Abstract:
The invention relates to a catheter system. The system comprises a catheter body having a chamber containing a low acoustic impedance medium. The catheter body includes an elongated body with an external surface and an ultrasound transducer having an external side between a first end and a second end. The ultrasound transducer is positioned over the external surface of the elongated body such that the first end is adjacent to the chamber.


John Zhang Photo 9

Ultrasound Catheter For Providing A Therapeutic Effect To A Vessel Of A Body

US Patent:
2003016, Sep 4, 2003
Filed:
Mar 6, 2003
Appl. No.:
10/383292
Inventors:
Frederick J. Bennett - Issaquah WA, US
John Zhang - Bothell WA, US
Gary Lichttenegger - Woodinville WA, US
James E. Rodriguey - Seattle WA, US
Katsuro Tachibana - Fukuoka, JP
International Classification:
A61H001/00
US Classification:
601/002000, 600/439000, 604/022000
Abstract:
The invention relates to a catheter system. The system comprises a catheter body having a chamber containing a low acoustic impedance medium. The catheter body includes an elongated body with an external surface and an ultrasound transducer having an external side between a first end and a second end. The ultrasound transducer is positioned over the external surface of the elongated body such that the first end is adjacent to the chamber.


John Zhang Photo 10

Ultrasound Catheter

US Patent:
7914509, Mar 29, 2011
Filed:
Feb 15, 2007
Appl. No.:
11/707189
Inventors:
Frederick J. Bennett - Issaquah WA, US
John Zhang - Bothell WA, US
Gary Lichttenegger - Woodinville WA, US
James E. Rodriguey - Seattle WA, US
Katsuro Tachibana - Fukuoka, JP
Assignee:
Ekos Corporation - Bothell WA
International Classification:
A61M 31/00
US Classification:
604500, 604508
Abstract:
The invention relates to a catheter system. The system comprises a catheter body having a chamber containing a low acoustic impedance medium. The catheter body includes an elongated body with an external surface and an ultrasound transducer having an external side between a first end and a second end. The ultrasound transducer is positioned over the external surface of the elongated body such that the first end is adjacent to the chamber.