Patents by Inventor Kalpathi L. Venkatachalam

Kalpathi L. Venkatachalam 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).

  • Publication number: 20230139966
    Abstract: Devices and methods are described for disinfection of pathogenic organisms using pulsed DC field electroporation. For example, this disclosure describes disinfection of pathogenic organisms using pulsed DC field electroporation for lung infection treatment, blood infection treatment, sterilization, and respirators.
    Type: Application
    Filed: April 12, 2021
    Publication date: May 4, 2023
    Inventors: Hideki Ebihara, Jason A. Tri, Kalpathi L. Venkatachalam, Paul A. Friedman, Christopher V. DeSimone, Daniel C. DeSimone, Martin van Zyl, Adetola O. Ladejobi, Andrew D. Badley, Samuel J. Asirvatham
  • Publication number: 20190321072
    Abstract: Apparatuses and methods can be used to guide placement of needles within the body. For example, this document describes apparatuses that measure impedance and/or force as a needle is passed through tissue to inform user of which anatomical space they are in. Low-cost portable bedside electro-physical apparatuses and methods for needle guidance and confirmation of successful placement in portions of the human body such as vessels and thecal sac are described herein.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 24, 2019
    Inventors: Kalpathi L. Venkatachalam, Vivek Gupta, Prasanna Vibhute, Alexander Bills, Lucas Muller, Dev Mandavia, Cassidy Wang, Marci Medford
  • Patent number: 9585708
    Abstract: Some embodiments of a medical instrument can be configured to reduce the formation of coagulum by delivering a negative charge bias to conductive surfaces that interface with blood or bodily tissue during a medical procedure. The application of the negative charge at the instrument-blood interface can reduce the fibrinogen deposition and the formation of coagulum because fibrinogen molecules in general are negatively charged at neutral pH levels. In addition, some embodiments of the instrument may be configured to irrigate the instrument-blood interface with RGD/ClfA peptides, a bicarbonate solution (or other high pH solution), or both to further repel the fibrinogen and thereby inhibit the formation of coagulum. Accordingly, some embodiments of the medical instrument can substantially reduce the risks of thromboembolism during particular medical procedures.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: March 7, 2017
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Samuel J. Asirvatham, Arshad Jahangir, Bernard B. C. Lim, Kalpathi L. Venkatachalam
  • Publication number: 20160151105
    Abstract: Some embodiments of a medical instrument can be configured to reduce the formation of coagulum by delivering a negative charge bias to conductive surfaces that interface with blood or bodily tissue during a medical procedure. The application of the negative charge at the instrument-blood interface can reduce the fibrinogen deposition and the formation of coagulum because fibrinogen molecules in general are negatively charged at neutral pH levels. In addition, some embodiments of the instrument may be configured to irrigate the instrument-blood interface with RGD/ClfA peptides, a bicarbonate solution (or other high pH solution), or both to further repel the fibrinogen and thereby inhibit the formation of coagulum. Accordingly, some embodiments of the medical instrument can substantially reduce the risks of thromboembolism during particular medical procedures.
    Type: Application
    Filed: February 3, 2016
    Publication date: June 2, 2016
    Inventors: Samuel J. Asirvatham, Arshad Jahangir, Bernard B.C. Lim, Kalpathi L. Venkatachalam
  • Patent number: 9271786
    Abstract: Some embodiments of a medical instrument can be configured to reduce the formation of coagulum by delivering a negative charge bias to conductive surfaces that interface with blood or bodily tissue during a medical procedure. The application of the negative charge at the instrument-blood interface can reduce the fibrinogen deposition and the formation of coagulum because fibrinogen molecules in general are negatively charged at neutral pH levels. In addition, some embodiments of the instrument may be configured to irrigate the instrument-blood interface with RGD/ClfA peptides, a bicarbonate solution (or other high pH solution), or both to further repel the fibrinogen and thereby inhibit the formation of coagulum. Accordingly, some embodiments of the medical instrument can substantially reduce the risks of thromboembolism during particular medical procedures.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: March 1, 2016
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Samuel J. Asirvatham, Arshad Jahangir, Bernard B. C. Lim, Kalpathi L. Venkatachalam
  • Publication number: 20140324040
    Abstract: Some embodiments of a medical instrument can be configured to reduce the formation of coagulum by delivering a negative charge bias to conductive surfaces that interface with blood or bodily tissue during a medical procedure. The application of the negative charge at the instrument-blood interface can reduce the fibrinogen deposition and the formation of coagulum because fibrinogen molecules in general are negatively charged at neutral pH levels. In addition, some embodiments of the instrument may be configured to irrigate the instrument-blood interface with RGD/ClfA peptides, a bicarbonate solution (or other high pH solution), or both to further repel the fibrinogen and thereby inhibit the formation of coagulum. Accordingly, some embodiments of the medical instrument can substantially reduce the risks of thromboembolism during particular medical procedures.
    Type: Application
    Filed: July 14, 2014
    Publication date: October 30, 2014
    Inventors: Samuel J. Asirvatham, Arshad Jahangir, Bernard B.C. Lim, Kalpathi L. Venkatachalam
  • Patent number: 8790338
    Abstract: Some embodiments of a medical instrument can be configured to reduce the formation of coagulum by delivering a negative charge bias to conductive surfaces that interface with blood or bodily tissue during a medical procedure. The application of the negative charge at the instrument-blood interface can reduce the fibrinogen deposition and the formation of coagulum because fibrinogen molecules in general are negatively charged at neutral pH levels. In addition, some embodiments of the instrument may be configured to irrigate the instrument-blood interface with RGD/ClfA peptides, a bicarbonate solution (or other high pH solution), or both to further repel the fibrinogen and thereby inhibit the formation of coagulum. Accordingly, some embodiments of the medical instrument can substantially reduce the risks of thromboembolism during particular medical procedures.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: July 29, 2014
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Samuel J. Asirvatham, Arshad Jahangir, Bernard B. C. Lim, Kalpathi L. Venkatachalam
  • Patent number: 8409192
    Abstract: Some embodiments of a medical instrument can be configured to reduce the formation of coagulum by delivering a negative charge bias to conductive surfaces that interface with blood or bodily tissue during a medical procedure. The application of the negative charge at the instrument-blood interface can reduce the fibrinogen deposition and the formation of coagulum because fibrinogen molecules in general are negatively charged at neutral pH levels. In addition, some embodiments of the instrument may be configured to irrigate the instrument-blood interface with RGD/ClfA peptides, a bicarbonate solution (or other high pH solution), or both to further repel the fibrinogen and thereby inhibit the formation of coagulum. Accordingly, some embodiments of the medical instrument can substantially reduce the risks of thromboembolism during particular medical procedures.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: April 2, 2013
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Samuel J. Asirvatham, Arshad Jahangir, Bernard B. C. Lim, Kalpathi L. Venkatachalam
  • Publication number: 20120150171
    Abstract: Some embodiments of a medical instrument can be configured to reduce the formation of coagulum by delivering a negative charge bias to conductive surfaces that interface with blood or bodily tissue during a medical procedure. The application of the negative charge at the instrument-blood interface can reduce the fibrinogen deposition and the formation of coagulum because fibrinogen molecules in general are negatively charged at neutral pH levels. In addition, some embodiments of the instrument may be configured to irrigate the instrument-blood interface with RGD/C1fA peptides, a bicarbonate solution (or other high pH solution), or both to further repel the fibrinogen and thereby inhibit the formation of coagulum. Accordingly, some embodiments of the medical instrument can substantially reduce the risks of thromboembolism during particular medical procedures.
    Type: Application
    Filed: February 13, 2012
    Publication date: June 14, 2012
    Inventors: Samuel J. Asirvatham, Arshad Jahangir, Bernard B.C. Lim, Kalpathi L. Venkatachalam
  • Patent number: 8162936
    Abstract: Some embodiments of a medical instrument can be configured to reduce the formation of coagulum by delivering a negative charge bias to conductive surfaces that interface with blood or bodily tissue during a medical procedure. The application of the negative charge at the instrument-blood interface can reduce the fibrinogen deposition and the formation of coagulum because fibrinogen molecules in general are negatively charged at neutral pH levels. In addition, some embodiments of the instrument may be configured to irrigate the instrument-blood interface with RGD/ClfA peptides, a bicarbonate solution (or other high pH solution), or both to further repel the fibrinogen and thereby inhibit the formation of coagulum. Accordingly, some embodiments of the medical instrument can substantially reduce the risks of thromboembolism during particular medical procedures.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: April 24, 2012
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Samuel J. Asirvatham, Arshad Jahangir, Bernard B. C. Lim, Kalpathi L. Venkatachalam
  • Publication number: 20090187187
    Abstract: Some embodiments of a medical instrument can be configured to reduce the formation of coagulum by delivering a negative charge bias to conductive surfaces that interface with blood or bodily tissue during a medical procedure. The application of the negative charge at the instrument-blood interface can reduce the fibrinogen deposition and the formation of coagulum because fibrinogen molecules in general are negatively charged at neutral pH levels. In addition, some embodiments of the instrument may be configured to irrigate the instrument-blood interface with RGD/ClfA peptides, a bicarbonate solution (or other high pH solution), or both to further repel the fibrinogen and thereby inhibit the formation of coagulum. Accordingly, some embodiments of the medical instrument can substantially reduce the risks of thromboembolism during particular medical procedures.
    Type: Application
    Filed: February 20, 2009
    Publication date: July 23, 2009
    Applicant: MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH
    Inventors: Samuel J. Asirvatham, Arshad Jahangir, Bernard B.C. Lim, Kalpathi L. Venkatachalam