Patents by Inventor Vinod Sharma

Vinod Sharma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • MODULATING CELLULAR ELECTROPHYSIOLOGY
    Publication number: 20110144028
    Abstract: The present invention relates to compositions, apparatus, and methods for improving the viability of cells, including, but not limited to, nonexcitable cells, and tissues expressing exogenous polynucleotides that encode membrane proteins that regulate that flow of ions across the cell membrane. The viability of the cells and tissues may be improved by contacting the cells or tissue with one or more ion channel blocking agents. Membrane proteins that regulate the flow of ions across the cell membrane include, but are not limited to, ion channels.
    Type: Application
    Filed: December 11, 2009
    Publication date: June 16, 2011
    Inventor: Vinod Sharma
  • SELF-FIXATING SCAFFOLDS
    Publication number: 20110123593
    Abstract: A self-fixating scaffold delivers therapeutic material to tissue for treating various diseases/conditions. A scaffold holds the therapeutic material and is implanted into the tissue. A fixation element anchors the scaffold in the tissue making the scaffold less likely to become dislodged.
    Type: Application
    Filed: January 18, 2011
    Publication date: May 26, 2011
    Applicant: Medtronic, Inc.
    Inventors: Daniel C. Sigg, Prasanga D. Hiniduma-Lokuge, Vinod Sharma, John L. Sommer
  • MEASURING T-WAVE ALTERNANS
    Publication number: 20110105929
    Abstract: Techniques for monitoring T-wave alternans (TWAs) in a patient are described. An implantable medical device (IMD), such as an implantable pacemaker, cardioverter, or diagnostic device, generates an EGM signal, e.g., a far field EGM signal, samples the EGM signal to obtain a single T-wave amplitude value for each T-wave over a plurality of beats, and stores the T-wave amplitude values in memory. The IMD creates a time series of the T-wave amplitude values stored in memory, calculates the power spectral density for the times series, and selects a power spectral density of a particular frequency, e.g., 0.5 cycles per beat, as the TWA value. The IMD may periodically determine TWA values for the patient and store the values in memory. The TWA values may be presented to medical personnel, e.g., as a trend. The IMD may deliver or modify therapy, or provide an alert, based on the TWA values.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Applicant: Medtronic, Inc.
    Inventors: Vinod Sharma, Xiaohong Zhou
  • OPTICAL RECORDING MEDIUMS
    Publication number: 20110051584
    Abstract: Optical recording mediums, and methods and systems for manufacturing optical recording mediums are provided. The optical recording medium includes a substrate on which a recordable layer and a reflective layer are formed. The reflective layer includes a predefined proportion of at least copper and zinc, wherein the predefined proportion is 50-75% copper and 15-45% zinc by mass. The recordable layer can either be formed over the substrate or the reflective layer, and is configured to record data. A protective layer is also formed over the reflective layer or recordable layer.
    Type: Application
    Filed: November 12, 2009
    Publication date: March 3, 2011
    Applicant: MOSER BAER INDIA LIMITED
    Inventors: Giriraj Nyati, Vinod Sharma, Akhil Tayal
  • Method and apparatus to terminate ventricular tachycardia via pacing
    Patent number: 7894899
    Abstract: An implantable device for terminating ventricular tachycardia is disclosed. The device includes a processor configured to determine a first antitachycardia pulse routine of N pulses. In the routine the first N?1 pulses are separated by a first cycle length and the Nth pulse is separated by a second cycle length that is shorter than the first cycle length. The device also comprises a lead coupled to the processor. The lead comprises an electrode configured to sense a tachycardia and further configured, under control of the processor, to administer the antitachycardia pulse routine.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: February 22, 2011
    Assignee: Medtronic, Inc.
    Inventor: Vinod Sharma
  • Queued Cooperative Wireless Networks Configuration Using Rateless Codes
    Publication number: 20100296432
    Abstract: A system using cooperative communication with rateless codes is presented that uses communication transmission aspects of cooperative communication with rateless codes over Rayleigh fading channels and queuing aspects for buffering messages at intermediate relays. The system transmits a subsequent message while a current message is en route to the destination by receiving and buffering the current message in queues at intermediate relays. A relay with a best instantaneous communication link to the source may receive a message first and forward the received message to the destination. Alternatively, if inter-relay communication links are strong, all relays may cooperate simultaneously.
    Type: Application
    Filed: August 28, 2009
    Publication date: November 25, 2010
    Inventors: Neelesh B. Mehta, Vinod Sharma, Gaurav Bansal
  • Electronic and biological pacemaker systems
    Patent number: 7778705
    Abstract: Heart pacing systems include at least one electronic or biological pacemaker as a primary pacemaker, and at least one electronic or biological pacemaker as a backup pacemaker. When implanted, the primary pacemaker(s) produce primary pacing stimuli that modulate cardiac function. The backup pacemaker(s) provide backup pacing stimuli when the electronic pacemaker is unable to modulate cardiac function at the predetermined pacing rate. The heart pacing systems are implemented by implantation in regions where they can provide pacing stimuli to cardiac tissue.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: August 17, 2010
    Assignee: Medtronic, Inc.
    Inventors: Daniel C. Sigg, Timothy G. Laske, Vinod Sharma, Orhan Soykan
  • IN-SITU DYNAMIC PITCH AND ROLL ADJUSTMENT IN HARD DISK DRIVES
    Publication number: 20100177443
    Abstract: Disclosed is a head gimbal assembly for a hard disk drive that includes a head pivotally connected to a flexure. The flexure has a longitudinal axis. The assembly includes first and second micro-actuators that are located between the flexure and the head and spaced from the longitudinal axis. By way of example, the first and second micro-actuators may be thin piezo-electric transducers. Control signals can be provided to the micro-actuators to vary the pitch and/or roll of the head.
    Type: Application
    Filed: January 15, 2009
    Publication date: July 15, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Vinod Sharma, Hyung Jai Lee
  • DYNAMIC PITCH AND ROLL SENSING IN HARD DISK DRIVES
    Publication number: 20100149682
    Abstract: A head for a hard disk drive that includes a primary read element and a first sensor read element coupled to a head body. The first sensor read element is offset from the primary read element. The first sensor read element provides a read signal that can be analyzed to determine a pitch of the head. The head may also have a second sensor read element that is offset from the first sensor read element. The second sensor read element provides a read signal that can also be analyzed to determine a pitch of the head. Read signals of the first and second sensor read elements can be analyzed to determine a roll of the head.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 17, 2010
    Inventors: Vinod Sharma, Dongman Kim
  • Apparatus and method for head gimbal assembly sharing power to slider amplifier and micro-actuator in a hard disk drive
    Patent number: 7715150
    Abstract: The head gimbal assembly includes a slider and a micro-actuator assembly sharing power for the micro-actuator assembly to aid in positioning the slider and for an amplifier included in the slider to generate an amplified read signal when the slider read accesses data on a rotating disk surface included in a hard disk drive. The slider includes a read-write head providing a read differential signal pair to an amplifier to generate an amplified read signal reported when read accessing a rotating disk surface near the slider, which includes a read head employing a spin valve or employing a tunneling valve. Hard disk drive including a head stack assembly, which includes at least one of the head gimbal assemblies. Manufacturing the head gimbal assembly, the head stack assembly, and the hard disk drive, as well as these items as products of the invention's manufacturing processes.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: May 11, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Brian D. Strom, Na Young Kim, Sung Chang Lee, Vinod Sharma, Joseph Chang
  • GENETIC MODIFICATION OF TARGETED REGIONS OF THE CARDIAC CONDUCTION SYSTEM
    Publication number: 20100076063
    Abstract: Disclosed are compositions, methods and systems for preventing or treating cardiac dysfunction, particularly cardiac pacing dysfunction by genetic modification of cells of targeted regions of the cardiac conduction system. In particular, a bio-pacemaker composition is delivered to cardiac cells to increase the intrinsic pacemaking rate of the cells, wherein the bio-pacemaker composition increases expression of a channel or subunit thereof that produces funny current and a T-type Ca2+ channel or subunit thereof, and expresses one or more molecules that suppresses the expression of the wild type potassium channel.
    Type: Application
    Filed: October 13, 2009
    Publication date: March 25, 2010
    Inventors: Vinod Sharma, Walter H. Olson
  • IDENTIFYING PATIENTS AT RISK FOR LIFE THREATENING ARRHYTHMIAS
    Publication number: 20100047915
    Abstract: The invention is a method for identifying proteins associated with sudden cardiac death (SCD) and for assessing a patient's risk of SCD by determining the amount of one or more SCD-associated proteins in the patient. Typically, the patient submits a sample, such as a blood sample, which is tested for one or more SCD-associated proteins. Based upon the results of the tests, the patient's risk of SCD may be assessed.
    Type: Application
    Filed: October 26, 2009
    Publication date: February 25, 2010
    Applicant: MEDTRONIC, INC.
    Inventors: Orhan Soykan, Amy C. Dearking, Timothy H. Robinson, Walter H. Olson, Vinod Sharma
  • Methods for identifying patients at risk for life threatening arrhythmias
    Patent number: 7622303
    Abstract: In general, the invention is directed to systems and techniques for assessing a risk of ventricular tachyarrhythmia in a patient by measuring one or more biochemical markers that reflect the health of a patient. Typically, the patient submits a sample, such as a blood sample, which is tested for one or more biomarkers. Based upon the results of the tests, the patient's risk of ventricular tachyarrhythmia may be assessed. When the patient is found to be at risk, the patient may receive an implantable medical device or drug therapy to address the risk.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: November 24, 2009
    Assignee: Medtronic, Inc.
    Inventors: Orhan Soykan, Timothy H. Robinson, Walter H. Olson, Vinod Sharma, Amy C. Dearking
  • Identifying patients at risk for life threatening arrhythmias
    Patent number: 7608458
    Abstract: The invention is a method for identifying proteins associated with sudden cardiac death (SCD) and for assessing a patient's risk of SCD by determining the amount of one or more SCD-associated proteins in the patient. Typically, the patient submits a sample, such as a blood sample, which is tested for one or more SCD-associated proteins. Based upon the results of the tests, the patient's risk of SCD may be assessed.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: October 27, 2009
    Assignee: Medtronic, Inc.
    Inventors: Orhan Soykan, Amy C. Dearking, Timothy H. Robinson, Walter H. Olson, Vinod Sharma
  • Method and apparatus of dual stage servo control with dual control paths and decoupling feedback for track following in a hard disk drive
    Patent number: 7583468
    Abstract: A magnetic head follows a track in a hard disk drive as positioned by micro-actuator and voice coil motor. Embodiments operate two control paths. The micro-actuator control path generates a version of micro-actuator control signal stimulating the micro-actuator. The voice coil motor control path generates a version of voice coil control signal, amplified based upon tuning gain to stimulate voice coil motor. A decoupling feedback filter decouples these control paths, using the micro-actuator control signal version. Either control path may include a notch filter. A track following command, with PES removed, directs the micro-actuator control. The servo-controller may digitally support the invention, which may include the servo-controller program system. An implementation may be optimized within a hard disk drive, possibly as part of the manufacturing process. The hard disk drive is a product of that process.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: September 1, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Vinod Sharma, Hyung Jai Lee, Dong Jun Lee
  • Method and apparatus for estimating micro-actuator stroke sensitivity in a hard disk drive
    Patent number: 7576940
    Abstract: Method of estimating the stroke sensitivity of micro-actuator coupled with slider and its read-write head. Micro-actuator stimulus signal used to drive micro-actuator, inducing noise into lateral positioning of read-write head near track by voice coil motor to create PES. Lateral position noise derived from Position Error Signal. Stroke sensitivity estimated from lateral position noise and micro-actuator stimulus signal. Apparatus supporting method estimating stroke sensitivity: servo controller, embedded circuit including servo-controller, and hard disk drive may include servo-controller and/or embedded circuit. Method making servo-controller, embedded circuit, and/or hard disk drive. Servo-controller, embedded circuit, and hard disk drive are products of these processes.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: August 18, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Jun Lee, Young-Hoon Kim, Vinod Sharma, Hyung Jai Lee
  • Method and apparatus for sensing leakage current to estimate and possibly adjust flying height of a read-write head in a hard disk drive
    Patent number: 7573668
    Abstract: A slider, flexure finger, head suspension assembly, head gimbal assembly, main flex circuit, actuator assembly, spindle motor, embedded circuit, and hard disk drive using and/or supporting method of estimating flying height of read-write head near rotating disk surface. Method senses leakage current between slider and spindle motor to create potential difference measurement, and converts potential difference measurement to create estimate of flying height. Method controlling flying height using method for estimating by adjusting vertical actuation signal to micro-actuator assembly. The invention includes methods of manufacturing and their products.
    Type: Grant
    Filed: January 16, 2006
    Date of Patent: August 11, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Haesung Kwon, Vinod Sharma, Hyung Jai Lee
  • METHOD AND APPARATUS TO TERMINATE VENTRICULAR TACHYCARDIA VIA PACING
    Publication number: 20090157129
    Abstract: An implantable device for terminating ventricular tachycardia is disclosed. The device includes a processor configured to determine a first antitachycardia pulse routine of N pulses. In the routine the first N?1 pulses are separated by a first cycle length and the Nth pulse is separated by a second cycle length that is shorter than the first cycle length. The device also comprises a lead coupled to the processor. The lead comprises an electrode configured to sense a tachycardia and further configured, under control of the processor, to administer the antitachycardia pulse routine.
    Type: Application
    Filed: February 26, 2009
    Publication date: June 18, 2009
    Inventor: Vinod Sharma
  • BIOLOGICAL PACEMAKERS INCLUDING MUTATED HYPERPOLARIZATION-ACTIVATED CYCLIC NUCLEOTIDE-GATED (HCN) CHANNELS
    Publication number: 20090099611
    Abstract: A composition for implantation into cardiac tissue includes a biological pacemaker that, when implanted, expresses an effective amount of a mutated hyperpolarization-activated and cyclic nucleotide-gated (HCN) isoform to modify Ih when compared with wild-type HCN. Methods for implementing each of the biological pacemakers include implanting each of biological pacemakers into cardiac tissue.
    Type: Application
    Filed: November 30, 2006
    Publication date: April 16, 2009
    Inventors: Daniel C. Sigg, Vinod Sharma, Yong-Fu Xiao
  • Method and apparatus to terminate ventricular tachycardia via pacing
    Patent number: 7515960
    Abstract: An implantable device for terminating ventricular tachycardia is disclosed. The device includes a processor configured to determine a first antitachycardia pulse routine of N pulses. In the routine the first N?1 pulses are separated by a first cycle length and the Nth pulse is separated by a second cycle length that is shorter than the first cycle length. The device also comprises a lead coupled to the processor. The lead comprises an electrode configured to sense a tachycardia and further configured, under control of the processor, to administer the antitachycardia pulse routine.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: April 7, 2009
    Assignee: Medtronic, Inc.
    Inventor: Vinod Sharma