Patents by Inventor Carl A. Schu

Carl A. Schu 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).

  • Patent number: 10506933
    Abstract: A medical monitoring device for monitoring electrical signals from the body of a subject is described. The medical monitoring device monitors electrical signals originating from a cardiac cycle of the subject and associates each cardiac cycle with a time index. The medical monitoring device applies a forward computational procedure to generate a risk score indicative of hyperkalemia, hypokalemia or arrhythmia of the subject. The medical monitoring device can adjust the forward computational procedure based upon clinical data obtained from the subject.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: December 17, 2019
    Assignee: Medtronic, Inc.
    Inventors: Orhan Soykan, VenKatesh R. Manda, Martin T. Gerber, Christopher M. Hobot, Linda L. Ruetz, Carl Schu
  • Publication number: 20180098704
    Abstract: A medical monitoring device for monitoring electrical signals from the body of a subject is described. The medical monitoring device monitors electrical signals originating from a cardiac cycle of the subject and associates each cardiac cycle with a time index. The medical monitoring device applies a forward computational procedure to generate a risk score indicative of hyperkalemia, hypokalemia or arrhythmia of the subject. The medical monitoring device can adjust the forward computational procedure based upon clinical data obtained from the subject.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 12, 2018
    Inventors: Orhan Soykan, VenKatesh R. Manda, Martin T. Gerber, Christopher M. Hobot, Linda L. Ruetz, Carl Schu
  • Patent number: 9937344
    Abstract: In some examples, the disclosure relates to a systems, devices, and techniques for delivering electrical stimulation therapy to a patient. In one example, the disclosure relates to a method including delivering a series of pulses with alternating pulse polarities to a gastrointestinal tract of a patient. The series of pulses includes at least a first pulse of a first polarity, a second pulse of a second polarity, and a third pulse of the first polarity, where the first, second and third pulses are delivered in direct succession and in that order. The first and second pulses are separated by a first time delay and the second and third pulses are separated by a second time delay. In some examples, each of the first and second time delays depend on the frequency that the series of pulses are delivered.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: April 10, 2018
    Assignee: Medtronic, Inc.
    Inventors: Warren L. Starkebaum, Roland C. Maude-Griffin, Elizabeth D. Firestone, Carl A. Schu, Orhan Soykan
  • Patent number: 9848778
    Abstract: A medical monitoring device for monitoring electrical signals from the body of a subject is described. The medical monitoring device monitors electrical signals originating from a cardiac cycle of the subject and associates each cardiac cycle with a time index. The medical monitoring device applies a forward computational procedure to generate a risk score indicative of hyperkalemia, hypokalemia or arrhythmia of the subject. The medical monitoring device can adjust the forward computational procedure based upon clinical data obtained from the subject.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 26, 2017
    Assignee: Medtronic, Inc.
    Inventors: Orhan Soykan, VenKatesh R. Manda, Martin T. Gerber, Christopher M. Hobot, Linda L. Ruetz, Carl Schu
  • Patent number: 9132217
    Abstract: A dialysis device for operation in multiple modes and for maintaining a known gradient of potassium ion or other electrolyte between the blood of a patient and a dialysate fluid is described. The dialysis device is capable of being used for hemodialysis or peritoneal dialysis, and the dialysis device is capable of operation with a dialysate purification unit outside of a clinical setting or with a supply of water that can be supplied in a clinical setting. The dialysis device has a composition sensor containing a potassium-sensitive electrode for measuring a potassium ion concentration in one or more of the patient's blood and the dialysate fluid and an infusate pump operated to adjust a potassium ion concentration in the dialysate fluid based at least in part on data from the composition sensor.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 15, 2015
    Assignee: Medtronic, Inc.
    Inventors: Orhan Soykan, Bryant J. Pudil, Thomas E. Meyer, Linda L. Ruetz, Carl Schu
  • Publication number: 20140148754
    Abstract: The invention relates to a method and device for dialysis and or bulk fluid removal by generating a fibrosis chamber within a body cavity and performing dialysis or bulk fluid removal. An implantable medical device is described having a fibrosis chamber and a pump. A dialysis chamber and an optional electrodialysis unit can further be provided. An additional controller uses sensory feedback to regulate the fluid levels by altering the extracellular fluid retention within the fibrosis chamber. This device can be used for the treatment of patients with chronic kidney disease who may also be suffering from cardiorenal syndrome and hypertension.
    Type: Application
    Filed: February 1, 2014
    Publication date: May 29, 2014
    Applicant: MEDTRONIC, INC.
    Inventors: Orhan Soykan, Carl Schu, Kimberly A. Chaffin
  • Publication number: 20140088442
    Abstract: A medical monitoring device for monitoring electrical signals from the body of a subject is described. The medical monitoring device monitors electrical signals originating from a cardiac cycle of the subject and associates each cardiac cycle with a time index. The medical monitoring device applies a forward computational procedure to generate a risk score indicative of hyperkalemia, hypokalemia or arrhythmia of the subject. The medical monitoring device can adjust the forward computational procedure based upon clinical data obtained from the subject.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 27, 2014
    Applicant: Medtronic, Inc.
    Inventors: Orhan Soykan, VenKatesh R. Manda, Martin T. Gerber, Christopher M. Hobot, Linda L. Ruetz, Carl Schu
  • Patent number: 8641659
    Abstract: The invention relates to a method and device for dialysis and or bulk fluid removal by generating a fibrosis chamber within a body cavity and performing dialysis or bulk fluid removal. An implantable medical device is described having a fibrosis chamber and a pump. A dialysis chamber and an optional electrodialysis unit can further be provided. An additional controller uses sensory feedback to regulate the fluid levels by altering the extracellular fluid retention within the fibrosis chamber. This device can be used for the treatment of patients with chronic kidney disease who may also be suffering from cardiorenal syndrome and hypertension.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: February 4, 2014
    Assignee: Medtronic, Inc.
    Inventors: Orhan Soykan, Carl Schu, Kimberly Chaffin
  • Publication number: 20130274642
    Abstract: A dialysis device for operation in multiple modes and for maintaining a known gradient of potassium ion or other electrolyte between the blood of a patient and a dialysate fluid is described. The dialysis device is capable of being used for hemodialysis or peritoneal dialysis, and the dialysis device is capable of operation with a dialysate purification unit outside of a clinical setting or with a supply of water that can be supplied in a clinical setting. The dialysis device has a composition sensor containing a potassium-sensitive electrode for measuring a potassium ion concentration in one or more of the patient's blood and the dialysate fluid and an infusate pump operated to adjust a potassium ion concentration in the dialysate fluid based at least in part on data from the composition sensor.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 17, 2013
    Inventors: Orhan Soykan, Bryant J. Pudil, Thomas E. Meyer, Linda L. Ruetz, Carl Schu
  • Publication number: 20120220926
    Abstract: The invention relates to a method and device for dialysis and or bulk fluid removal by generating a fibrosis chamber within a body cavity and performing dialysis or bulk fluid removal. An implantable medical device is described having a fibrosis chamber and a pump. A dialysis chamber and an optional electrodialysis unit can further be provided. An additional controller uses sensory feedback to regulate the fluid levels by altering the extracellular fluid retention within the fibrosis chamber. This device can be used for the treatment of patients with chronic kidney disease who may also be suffering from cardiorenal syndrome and hypertension.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 30, 2012
    Applicant: MEDTRONIC, INC.
    Inventors: Orhan Soykan, Carl Schu, Kimberly A. Chaffin
  • Patent number: 8207138
    Abstract: The instant invention provides a method for improving efficiency of RNA delivery to cells. The method comprises applying a low strength electric field to the cells and then after a certain time period, administering the ribonucleic acid sequence to the cells. Devices, kits, and RNA molecules suitable for delivery and devices suitable for practicing the disclosed methods are also provided.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: June 26, 2012
    Assignee: Medtronic, Inc.
    Inventors: Deepak Ramesh Thakker, Carl A. Schu, Eric Neal Burright, Paul W. Wacnik, Jennifer M. Heisel, Lothar Krinke
  • Publication number: 20110071589
    Abstract: In some examples, the disclosure relates to a systems, devices, and techniques for delivering electrical stimulation therapy to a patient. In one example, the disclosure relates to a method including delivering a series of pulses with alternating pulse polarities to a gastrointestinal tract of a patient. The series of pulses includes at least a first pulse of a first polarity, a second pulse of a second polarity, and a third pulse of the first polarity, where the first, second and third pulses are delivered in direct succession and in that order. The first and second pulses are separated by a first time delay and the second and third pulses are separated by a second time delay. In some examples, each of the first and second time delays depend on the frequency that the series of pulses are delivered.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 24, 2011
    Applicant: Medtronic, Inc.
    Inventors: Warren L. Starkebaum, Roland C. Maude-Griffin, Elizabeth D. Firestone, Carl A. Schu, Orhan Soykan
  • Publication number: 20100298762
    Abstract: The instant invention provides a method for improving efficiency of RNA delivery to cells. The method comprises applying a low strength electric field to the cells and then after a certain time period, administering the ribonucleic acid sequence to the cells. Devices, kits, and RNA molecules suitable for delivery and devices suitable for practicing the disclosed methods are also provided.
    Type: Application
    Filed: May 19, 2009
    Publication date: November 25, 2010
    Applicant: Medtronic, Inc.
    Inventors: Deepak Ramesh Thakker, Carl A. Schu, Eric Neal Burright, Paul W. Wacnik, Jennifer M. Heisel, Lothar Krinke
  • Patent number: 7647122
    Abstract: A needle driver is described that can be used to drive a plurality of surgical needles into or proximate to tissue of a living body. The needle driver assists the surgeon in perforating the tissue, creating the tracts at a desired depth, and creating multiple tracts simultaneously. The needle driver is configured to hold the needles securely when creating the tracts, and is also configured to disengage from the needles after the tracts have been created.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: January 12, 2010
    Assignee: Medtronic, Inc.
    Inventors: Cygni Chan, Carl A. Schu, Orhan Soykan, Terrell M. Williams
  • Publication number: 20080089867
    Abstract: A method of increasing retention, survival and proliferation of transplanted cells in diseased or damaged tissue types or organ by providing transplanted cells with autologously-derived platelet cells and forming a autologously-derived platelet gel prior or during administration to the tissue type or organ through a delivery device and immobilizing the transplanted cells in the tissue type or organ system.
    Type: Application
    Filed: October 13, 2006
    Publication date: April 17, 2008
    Inventors: Brian Fernandes, Carl A. Schu, Trevor C. Huang, Maura G. Donovan
  • Publication number: 20080039770
    Abstract: The present invention is directed to a device, such as a medical device, comprising at least one photocatalytic layer and at least one source of electromagnetic radiation, such as an LED or an electroluminescent material and methods of use. In some embodiments, the device includes an electrically conductive layer, such as an optically transparent conductive oxide, that is adapted to be biased from a voltage source. A method for increasing the energy efficiency of a photocatalytic surface comprises electrically biasing a transparent conductive oxide layer. A method for illuminating a complex three-dimensional surface comprises illuminating a photocatalytic layer with electromagnetic radiation from an electroluminescent layer. The devices and methods of the invention are useful, for example, for removing or preventing the formation of organic matter on a sensor window.
    Type: Application
    Filed: August 10, 2007
    Publication date: February 14, 2008
    Applicant: Medtronic, Inc.
    Inventors: Richard Francis, Carl Schu
  • Patent number: 7313443
    Abstract: The operation of an implantable medical device executing at least one set of firmware code is modified using a hardware/firmware trap at a point of execution of the set of firmware code. A patch code for directing the implantable medical device to perform a particular task is provided for execution when the trap generates an interrupt. The operation thereafter returns to the point of execution of the set of firmware code where the interrupt was generated and execution of the set of firmware code continues in a normal manner.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: December 25, 2007
    Assignee: Medtronic, Inc.
    Inventors: Vincent E. Splett, Carl A. Schu, Mark Haerle, Paul J. Huelskamp
  • Publication number: 20070023305
    Abstract: A needle driver is described that can be used to drive a plurality of surgical needles into or proximate to tissue of a living body. The needle driver assists the surgeon in perforating the tissue, creating the tracts at a desired depth, and creating multiple tracts simultaneously. The needle driver is configured to hold the needles securely when creating the tracts, and is also configured to disengage from the needles after the tracts have been created.
    Type: Application
    Filed: July 26, 2005
    Publication date: February 1, 2007
    Applicant: Medtronic, Inc.
    Inventors: Cygni Chan, Carl Schu, Orhan Soykan, Terrell Williams
  • Publication number: 20070027512
    Abstract: A stimulation electrode array is described. The electrode array can include multiple electrode sets, and can be connected by a single lead to an implantable pulse generator. The implantable pulse generator can drive one set of electrodes to one potential, and another set to a different potential. When implanted in target tissue, the electrodes can stimulate the target tissue while avoiding stimulation of neighboring muscles, organs or nerves.
    Type: Application
    Filed: July 26, 2005
    Publication date: February 1, 2007
    Applicant: Medtronic, Inc.
    Inventors: Cygni Chan, Carl Schu, Orhan Soykan, Terrell Williams
  • Publication number: 20070027513
    Abstract: An electrode assembly is described that can be implanted in target tissue of a living body. The electrode assembly includes an introduction needle, a flexible leader coupled to the introduction needle, and an elongated electrode with fixation mechanisms on its proximal and distal ends. The introduction needle includes a visible marker that is a fixed distance from the pointed tip of the needle. This distance is approximately the same as the length of the electrode. During implantation, a surgeon penetrates the tissue with the introduction needle, thereby creating a tract in the tissue, and drives the needle in the tissue up to the marker, then perforates the tissue to cause the needle to emerge. This creates a tract that is approximately the same length as the electrode. The electrode can be pulled into the tract, where the fixation mechanisms resist migration from the tract.
    Type: Application
    Filed: July 26, 2005
    Publication date: February 1, 2007
    Applicant: Medtronic, Inc.
    Inventors: Cygni Chan, Carl Schu, Orhan Soykan, Terrell Williams