DR. JAMES ANDREW NELSON, D.D.S.
Dentist at 12 Ave, Seattle, WA

5169944, Dec 8, 1992

Apr 12, 1991

7/685083

James A. Nelson - Seattle WA
Udo P. Schmiedl - Kirkland WA
Linnar L. Teng - Bothell WA
Jerry C. Bommer - Wellsville UT

Board of Regents of the University of Washington - Seattle WA

A61B 5055, C07D48722, G01N 2408

540145

Hepatobiliary magnetic resonance imaging of a human or animal subject is enhanced by enterally administering to the subject an effective amount of a lipophilic contrast enhancing agent. Representative contrast enhancing agents include manganese mesoporphyrin, manganese deuteroporphyrin, manganese pheophorbide and manganese pyrophenophoribide, and, when administered orally, an enteric delivery agent.

6374670, Apr 23, 2002

Mar 13, 1995

08/402872

Francis A. Spelman - Seattle WA
Page Read - Seattle WA
N. Mani Prakash - Seattle WA
James A. Nelson - Seattle WA
Charles E. Pope - Seattle WA
Margaret Heitkemper - Seattle WA
James D. Rothermel - Seattle WA

University of Washington - Seattle WA

A61B 522

7337901

An apparatus ( ) and method of non-invasive monitoring of gut motility. An ingestible magnet ( M) is swallowed by the patient ( ) and then linear and rotational movement is directionally detected by an external compass ( ). In preferred form, movements of the magnet ( M) are recorded by a memory means ( ) and graphically presented ( ) over a period of predetermined time. An alternate embodiment includes multiple compasses (C C ) for directionally locating the magnet ( M) within the patient ( ).

6447539, Sep 10, 2002

Sep 15, 1997

08/929076

James A. Nelson - Seattle WA
Ascher Shmulewitz - Mercer Island WA
John Burton - Minnetonka MN

TransVascular, Inc. - Menlo Park CA

A61F 206

623 111, 128898, 606194, 604 9301

Methods and apparatus are provided for use in intraoperative and percutaneous procedures for supplying long-term retrograde perfusion of the myocardium via one or more conduits disposed between the left ventricle and the coronary venous vasculature. The conduits are of a selected size and number, and portions of the venous vasculature or coronary ostium are partially or completely occluded, to maintain a parameter related to the pressure attained in the venous vasculature to a value less than a predetermined value.

5655548, Aug 12, 1997

Sep 16, 1996

8/714466

James A. Nelson - Seattle WA
Ascher Shmulewitz - Mercer Island WA

Circulation, Inc. - San Mateo CA

A61B 1900, A61M 110

128898

Methods are provided for use in open surgical and transluminal methods for supplying long-term retrograde perfusion of the myocardium via a conduit disposed between the left ventricle and the coronary sinus. In a first method, an opening is formed between the left ventricle and the coronary sinus, and the coronary ostium is partially occluded using a stent that prevents the pressure in the coronary sinus from exceeding a predetermined value. In an alternative method, a first end of a conduit is inserted transeptally through the right atrium and obliquely into the posterior septal endocardium of the left ventricle via the posterior pyramidal space, while a second end of the conduit is inserted into the coronary sinus via the coronary ostium. A pressure-limiting valve is included in the conduit. In either method, the outlet from the left ventricle to the coronary sinus may include a one-way valve to prevent backflow from the coronary sinus into the left ventricle during cardiac diastole.

2010010, Apr 29, 2010

Jul 13, 2007

12/373854

James A. Nelson - Seattle WA, US

A61M 25/00, A61M 16/04, A61F 2/84

623 111, 604523, 12820714, 604544

An improved catheter is provided for insertion into a trachea, blood vessel, bladder or urinary tract of a patient. The self cleaning catheter can be easily inserted and removed from the patient without retained, solid components falling into a patient's trachea, blood vessels, bladder, or urinary tract when the catheter is removed from the patient. The self cleaning catheter has a flexible cylindrical sleeve on the exterior of a cylindrical member that can be withdrawn to the interior of the catheter prior to removal from the patient's body. Alternatively, the catheter has a design allowing an end of the catheter to fold inward on itself prior to removal from the patient's body.