Mrigank S Shekhar

US Patent:

6564091, May 13, 2003

Filed:

May 22, 2001

Appl. No.:

09/862082

Inventors:

Mrigank Shekhar - Vancouver WA

Assignee:

Biotronik Mess-und Therapiegerate GmbH Co. Ingenieurburo Berlin - Berlin

International Classification:

A61B 50452

US Classification:

600516, 607 9

Abstract:

A method for storing from a temporal sequence of a plurality of individual cardiac events cardiac rhythm information comprised of at least one determined type, in particular a sequence of time intervals between ventricular and/or atrial events, whereby a time interval continuum of the temporal distances between the events is subdivided into time portions of a predetermined length, which are each allocated a single-valuedd marker, in particular a number, each time interval detected with a detection of the cardiac rhythm as one recording is provided with the marker of the time portion into which it falls, the number of the recordings out of a predetermined total number of detected time intervals or belonging to each marker during a predetermined period of time, is assessed, and the markers which have been allocated from a predetermined number of time intervals or during a predetermined period of time at least one recording, each are stored along with the number of recordings.

US Patent:

6748267, Jun 8, 2004

Filed:

Jul 25, 2001

Appl. No.:

09/912056

Inventors:

Mrigank Shekhar - Vancouver WA
Tran Thong - Portland OR
Indra B. Nigam - Tigard OR

Assignee:

Biotronik Mess-und Therapiegeraete GmbH Co. - Berlin

International Classification:

A61N 136

US Classification:

607 4, 607 9, 607 14

Abstract:

A heart therapy device includes a heart rate detector unit for detecting a heart rate, an evaluation and control unit adaptable to evaluate a measured heart rate and output a therapy control signal, and a therapy unit coupled to the output of the evaluation and control means for realizing at least one therapy having a predetermined therapy. The evaluation and control unit includes a three-area memory for storing heart rate value ranges, a heart rate discriminator for allocating a measured heart rate and outputting a first, second or third discriminator output signal, a stability evaluation unit for outputting a stability output signal and evaluating heart rate stability over a predetermined period of time in response to the output of the second heart rate discriminator output signal, and a logical processing unit for processing the second discriminator output.

US Patent:

6934582, Aug 23, 2005

Filed:

Dec 13, 2001

Appl. No.:

10/017998

Inventors:

Tran Thong - Portland OR, US
Indra B. Nigam - Tigard OR, US
Mrigank Shekhar - Vancouver WA, US
Max Schaldach, Jr. - Berlin, DE

Assignee:

Biotronik Mess -und Therapiegeraete GmbH & Co. Ingenieurbuero Berlin - Berlin

International Classification:

A61N001/39

US Classification:

607 5, 607 6, 607 7

Abstract:

Apparatus for treating fibrillation of at least one chamber of a heart comprising a fibrillation detector for detecting a fibrillation, a defibrillator for defibrillating the chamber of the heart, wherein the defibrillator is connected to the fibrillation detector and is adapted to effect defibrillation subsequently to a time interval after detection of the fibrillation, a warning device which is connected to the fibrillation detector and which is adapted to delivery a warning signal when a fibrillation has been detected, and a control circuit having a control input actuable by a patient, wherein the control circuit is connected to the defibrillator and is adapted to delay the time of a defibrillation if the control circuit receives a corresponding signal by way of the control input, wherein the apparatus includes a condition detector which is adapted to detect a hemodynamic condition of the heart, and the control circuit is connected to the condition detector and is adapted to prevent a delay in the time of defibrillation when the condition detector detects a predetermined hemodynamic condition.

US Patent:

7747846, Jun 29, 2010

Filed:

Mar 26, 2007

Appl. No.:

11/728454

Inventors:

Vincent J. Zimmer - Federal Way WA, US
Mrigank Shekhar - Camas WA, US
Kushagra Vaid - San Jose CA, US
Michael A. Rothman - Puyallup WA, US
Lee Rosenbaum - Portland OR, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

G06F 15/177

US Classification:

713 1, 713 2, 713100, 713155, 713176

Abstract:

A basic input/output system may be stored on two different memories coupled to active management technology firmware and a trusted platform module. The trusted platform module ensures that access to the correct memory. One of the memories is selected to store an update of the basic input/output system.

US Patent:

20040059390, Mar 25, 2004

Filed:

Sep 18, 2003

Appl. No.:

10/666752

Inventors:

Tran Thong - Portland OR, US
Mrigank Shekhar - Vancouver WA, US
Indra Nigam - Tigard OR, US

Assignee:

Biotronik Mess-und Therapiegeraete GmbH & Co. Ingenieurbuero Berlin

International Classification:

A61N001/39

US Classification:

607/005000, 607/014000

Abstract:

An arrangement for treating rhythm disturbances of a heart (H), especially tachycardia and fibrillation, has a device (FD) for detecting the heart rhythm and determining when a fibrillation threshold limit is exceeded and a therapy device or stimulator (IG). The therapy device (IG) is connected to the heart rhythm detecting device (FD), to begin to treat the fibrillation when the fibrillation threshold limit is exceeded. The heart rhythm detecting device determines whether a redetection threshold limit is still exceeded after the therapy device has treated the fibrillation, the redetection threshold limit being lower than the fibrillation threshold limit and higher than a tachycardia threshold limit. The therapy device continues to treat the fibrillation as long as the heart rhythm detector determines that the redection threshold limit is exceeded.

US Patent:

20080244257, Oct 2, 2008

Filed:

Mar 30, 2007

Appl. No.:

11/731526

Inventors:

Kushagra Vaid - San Jose CA, US
Vincent J. Zimmer - Federal Way WA, US
Mrigank Shekhar - Camas WA, US

International Classification:

G06F 9/00

US Classification:

713 2

Abstract:

In some embodiments, the invention involves a system and method relating to secure booting of a platform. In at least one embodiment, the present invention is intended to securely boot a platform using one or more signature keys stored in a secure location on the platform, where access to the signature is by a microcontroller on the platform and the host processor has no direct access to alter the signature key. Other embodiments are described and claimed.

US Patent:

20090172125, Jul 2, 2009

Filed:

Dec 28, 2007

Appl. No.:

11/966136

Inventors:

Mrigank Shekhar - Camas WA, US
Vincent J. Zimmer - Federal Way WA, US
Palsamy Sakthikumar - Puyallup WA, US
Rob Nance - Austin TX, US

International Classification:

G06F 15/167

US Classification:

709215, 709213

Abstract:

A method and system for migrating a computer environment, such as a virtual machine, from a first blade server to a second blade server includes storing data generated by the first and second blade servers on a shared hard drive and transferring a logic unit number from the first blade server to the second blade server. The logic unit number identifies a location of the shared hard drive used by the first blade server to store data. Additionally, the state of the central processing unit of the first blade server may be transferred to the second blade server.

US Patent:

6480739, Nov 12, 2002

Filed:

Mar 30, 2001

Appl. No.:

09/701796

Inventors:

Indra B. Nigam - Tigard OR
Andreas Hahn - Berlin, DE
Andreas Kucher - Schwedt, DE
Mrigank Shekhar - Tualatin OR

Assignee:

Biotronik Mess - und Therapiegeräte GmbH Co. Ingenieurbüro Berlin - Berlin

International Classification:

A61N 1362

US Classification:

607 9, 607 14, 600509

Abstract:

Method for avoiding the detection of a far-field QRS by the atrial detector of a heart pacemaker or ICD while allowing the detection of a true atrial signal to a maximum possible extent; the method comprising generating a Short Atrial Refractory Period (SARP) following an atrial sensed or paced event by means of a SARP timer, blanking of the atrial detector following a ventricular paced event, generating a Post Ventricular Short Atrial Refractory Period (PVSARP) following a ventricular sensed or paced event by means of a PVSARP timer, generating a temporary decrease in the sensivity of an amplifier for the atrial signal for a time period following the elapse of the mentioned PVSARP, and gradually increasing the sensitivity of the amplifier for the atrial signal after said time period.