SUBRAMANIAM CHITOOR KRISHNAN
Pharmacy in West Bloomfield, MI
License number
Michigan 4301076770
Expiration Date
Jan 31, 2007
Category
Pharmacy
Type
CS - 3
Address
Address
West Bloomfield, MI 48322
Professional information
Detecting Prolonged Myocardial Repolarization Indicative Of Cardiac Condition
US Patent:
2008016, Jul 3, 2008
Filed:
Feb 11, 2005
Appl. No.:
10/588585
Inventors:
David N. Kenigsberg - Southfield MI, US
Sanjaya Khanal - Farmington Hills MI, US
Marcin Kowalski - Detroit MI, US
Subramaniam Krishnan - West Bloomfield MI, US
Sanjaya Khanal - Farmington Hills MI, US
Marcin Kowalski - Detroit MI, US
Subramaniam Krishnan - West Bloomfield MI, US
International Classification:
A61B 5/0468
US Classification:
600516
Abstract:
The present invention comprises methods and apparatus for detecting prolonged myocardial repolarization as an indicator of cardiac conditions, including without limitation, transmural ischemia. In some embodiments, without limitation, the present invention comprises methods and apparatus to detect prolonged repolarization using electrocardiographic and electrophysiological tools and measurements.
Method And Apparatus For Locating The Fossa Ovalis And Performing Transseptal Puncture
US Patent:
2004013, Jul 8, 2004
Filed:
Aug 25, 2003
Appl. No.:
10/648844
Inventors:
Subramaniam Krishnan - West Bloomfield MI, US
International Classification:
A61B005/0402
US Classification:
600/508000
Abstract:
A method of identifying the fossa ovalis in a patient by positioning one or more electrodes against the tissue of the interatrial septum of the patient and acquiring unipolar and/or bipolar electrograms of the tissue of the interatrial septum while moving the electrodes to a plurality of positions against the tissue of the interatrial septum. The fossa ovalis is identified on the basis of unipolar voltage reduction, signal fractionation, broadened signal, reduced signal slew rate, reduced local myocardial impedance, increased phase angle and/or increased pacing threshold. An apparatus for identifying the fossa ovalis is also provided.
Methods And Apparatus For Locating The Fossa Ovalis And Performing Transseptal Puncture
US Patent:
8128573, Mar 6, 2012
Filed:
Aug 6, 2009
Appl. No.:
12/536757
Inventors:
Subramaniam C. Krishnan - West Bloomfield MI, US
Assignee:
St. Jude Medical, Atrial Fibrillation Division, Inc. - St. Paul MN
International Classification:
A61B 5/04
US Classification:
600508, 606191, 606185, 607 1, 607 2, 607115, 607116, 607119, 607122, 607123, 600509, 600512, 600519, 600523
Abstract:
A method of identifying the fossa ovalis in a patient by positioning one or more electrodes against the tissue of the interatrial septum of the patient and acquiring unipolar and/or bipolar electrograms of the tissue of the interatrial septum while moving the electrodes to a plurality of positions against the tissue of the interatrial septum. The fossa ovalis is identified on the basis of unipolar voltage reduction, signal fractionation, broadened signal, reduced signal slew rate, reduced local myocardial impedance, increased phase angle and/or increased pacing threshold. An apparatus for identifying the fossa ovalis is also provided.
Method And Apparatus For Locating The Fossa Ovalis And Performing Transseptal Puncture
US Patent:
7824341, Nov 2, 2010
Filed:
Sep 19, 2007
Appl. No.:
11/901755
Inventors:
Subramaniam C. Krishnan - West Bloomfield MI, US
Assignee:
St. Jude Medical, Atrial Fibrillation Division, Inc. - St. Paul MN
International Classification:
A61B 5/05
US Classification:
600508, 600374, 600424, 607 1, 607 70, 607 74, 607115, 607116, 607118
Abstract:
A method of identifying the fossa ovalis in a patient by positioning one or more electrodes against the tissue of the interatrial septum of the patient and acquiring unipolar and/or bipolar electrograms of the tissue of the interatrial septum while moving the electrodes to a plurality of positions against the tissue of the interatrial septum. The fossa ovalis is identified on the basis of unipolar voltage reduction, signal fractionation, broadened signal, reduced signal slew rate, reduced local myocardial impedance, increased phase angle and/or increased pacing threshold. An apparatus for identify the fossa ovalis is also provided.
Method And Apparatus For Locating The Fossa Ovalis, Creating A Virtual Fossa Ovalis And Performing Transseptal Puncture
US Patent:
7815577, Oct 19, 2010
Filed:
Mar 3, 2006
Appl. No.:
11/367941
Inventors:
Subramaniam C. Krishnan - West Bloomfield MI, US
Assignee:
St. Jude Medical, Atrial Fibrillation Division, Inc. - St. Paul MN
International Classification:
A61B 5/05
US Classification:
600508, 600374, 600424, 607 1, 607115, 607116, 607118
Abstract:
A method of locating the fossa ovalis in a patient by locating the His bundle, plane of the interatrial septum, and coronary sinus ostium in a patient, and thereafter locating the fossa ovalis on the basis of one or more predetermined distances between the fossa ovalis and the His bundle and the coronary sinus ostium. An apparatus for locating the fossa ovalis and performing a transseptal puncture is also provided.