Patents by Inventor Mehrdad Ghoreishi

Mehrdad Ghoreishi 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: 20220387016
    Abstract: A tissue anchor deployment device includes a needle having a slotted portion including a longitudinal slot that runs from a distal end of the needle and a suture having a first coil portion including a plurality of turns that wrap around a first portion of the slotted portion of the needle, a second coil portion including a plurality of turns that wrap around a second portion slotted portion of the needle that is proximal to the first portion of the slotted portion of the needle, and an internal coupling portion that runs within the first coil portion and the second coil portion and couples a distal end of the first coil portion to a proximal end of the second coil portion.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Inventors: James S. Gammie, Rahul Patel, Mehrdad Ghoreishi
  • Publication number: 20220313888
    Abstract: Disclosed herein is a bidirectional intravascular cannula, or catheter, that is configured to provide and return blood in a patient bidirectionally. The bidirectional intravascular cannula is configured to reduce or obviate the need for a second cannula, such as currently available unidirectional cannulae, to be placed in a second or opposite direction of flow. Users would include cardiac surgeons, intensivists, vascular surgeons, ER doctors, IR doctors and cardiologist who use peripheral cannulation for ECLS or cardiopulmonary bypass. The cannula allows continued flow to a patient's limb even with the cannula proximally in the vessel. The cannula further allows larger size cannula to be placed without the need for additional distal catheter placement.
    Type: Application
    Filed: June 21, 2022
    Publication date: October 6, 2022
    Inventors: Zachary KON, Mehrdad GHOREISHI, Chetan PASRIJA, Bartley GRIFFITH, Gregory BITTLE
  • Patent number: 11413033
    Abstract: A tissue anchor deployment device includes a needle having a slotted portion including a longitudinal slot that runs from a distal end of the needle and a suture having a first coil portion including a plurality of turns that wrap around a first portion of the slotted portion of the needle, a second coil portion including a plurality of turns that wrap around a second portion slotted portion of the needle that is proximal to the first portion of the slotted portion of the needle, and an internal coupling portion that runs within the first coil portion and the second coil portion and couples a distal end of the first coil portion to a proximal end of the second coil portion.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: August 16, 2022
    Assignee: University of Maryland, Baltimore
    Inventors: James S. Gammie, Rahul Patel, Mehrdad Ghoreishi
  • Patent number: 11364333
    Abstract: Disclosed herein is a bidirectional intravascular cannula, or catheter, that is configured to provide and return blood in a patient bidirectionally. The bidirectional intravascular cannula is configured to reduce or obviate the need for a second cannula, such as currently available unidirectional cannulae, to be placed in a second or opposite direction of flow. Users would include cardiac surgeons, intensivists, vascular surgeons, ER doctors, IR doctors and cardiologist who use peripheral cannulation for ECLS or cardiopulmonary bypass. The cannula allows continued flow to a patient's limb even with the cannula proximally in the vessel. The cannula further allows larger size cannula to be placed without the need for additional distal catheter placement.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: June 21, 2022
    Assignees: UNIVERSITY OF MARYLAND, BALTIMORE, UNIVERSITY OF MARYLAND MEDICAL CENTER, LLC
    Inventors: Zachary Kon, Mehrdad Ghoreishi, Chetan Pasrija, Bartley Griffith, Gregory Bittle
  • Publication number: 20200306440
    Abstract: Disclosed herein is a bidirectional intravascular cannula, or catheter, that is configured to provide and return blood in a patient bidirectionally. The bidirectional intravascular cannula is configured to reduce or obviate the need for a second cannula, such as currently available unidirectional cannulae, to be placed in a second or opposite direction of flow. Users would include cardiac surgeons, intensivists, vascular surgeons, ER doctors, IR doctors and cardiologist who use peripheral cannulation for ECLS or cardiopulmonary bypass. The cannula allows continued flow to a patient's limb even with the cannula proximally in the vessel. The cannula further allows larger size cannula to be placed without the need for additional distal catheter placement.
    Type: Application
    Filed: October 10, 2018
    Publication date: October 1, 2020
    Inventors: Zachary KON, Mehrdad GHOREISHI, Chetan PASRIJA, Bartley GRIFFITH, Gregory BITTLE
  • Publication number: 20190261979
    Abstract: A tissue anchor deployment device includes a needle having a slotted portion including a longitudinal slot that runs from a distal end of the needle and a suture having a first coil portion including a plurality of turns that wrap around a first portion of the slotted portion of the needle, a second coil portion including a plurality of turns that wrap around a second portion slotted portion of the needle that is proximal to the first portion of the slotted portion of the needle, and an internal coupling portion that runs within the first coil portion and the second coil portion and couples a distal end of the first coil portion to a proximal end of the second coil portion.
    Type: Application
    Filed: May 7, 2019
    Publication date: August 29, 2019
    Inventors: James S. Gammie, Rahul Patel, Mehrdad Ghoreishi
  • Publication number: 20190224456
    Abstract: Disclosed herein is a guidewire configured for placement of large bore catheters and cannulae inside of a patient's blood vessels without fluoroscopic guidance. The guidewire, in accordance with certain aspects of an embodiment of the invention, comprises sections of varying stiffness throughout optimally fixed length portions of the guidewire that particularly ease placement of such large bore catheters and cannulae in ECMO applications.
    Type: Application
    Filed: January 24, 2019
    Publication date: July 25, 2019
    Inventors: Zachary Kon, Bartley P. Griffith, Mehrdad Ghoreishi, Chetan Pasrija, Gregory Bittle
  • Patent number: 10285686
    Abstract: Methods and devices for repairing a cardiac valve. A minimally invasive procedure includes creating an access in the apex region of the heart through which one or more instruments may be inserted. The device can implant artificial heart valve chordae tendineae into cardiac valve leaflet tissues to restore proper leaflet function and prevent reperfusion. The device punctures the apex of the heart and travels through the ventricle. The tip of the device rests on the defective valve and punctures the valve leaflet. A suture or a suture/guide wire combination is inserted, securing the top of the leaflet to the apex of the heart. A resilient element or shock absorber mechanism adjacent to the outside of the apex of the heart minimizes the linear travel of the device in response to the beating of the heart or opening/closing of the valve.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: May 14, 2019
    Assignee: University of Maryland, Baltimore
    Inventors: James Gammie, Rahul Patel, Mehrdad Ghoreishi
  • Publication number: 20150032127
    Abstract: Methods and devices for repairing a cardiac valve. A minimally invasive procedure includes creating an access in the apex region of the heart through which one or more instruments may be inserted. The device can implant artificial heart valve chordae tendineae into cardiac valve leaflet tissues to restore proper leaflet function and prevent reperfusion. The device punctures the apex of the heart and travels through the ventricle. The tip of the device rests on the defective valve and punctures the valve leaflet. A suture or a suture/guide wire combination is inserted, securing the top of the leaflet to the apex of the heart. A resilient element or shock absorber mechanism adjacent to the outside of the apex of the heart minimizes the linear travel of the device in response to the beating of the heart or opening/closing of the valve.
    Type: Application
    Filed: September 5, 2014
    Publication date: January 29, 2015
    Applicant: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventors: James Gammie, Rahul Patel, Mehrdad Ghoreishi
  • Patent number: 8852213
    Abstract: Methods and devices for repairing a cardiac valve. A minimally invasive procedure includes creating an access in the apex region of the heart through which one or more instruments may be inserted. The device can implant artificial heart valve chordae tendineae into cardiac valve leaflet tissues to restore proper leaflet function and prevent reperfusion. The device punctures the apex of the heart and travels through the ventricle. The tip of the device rests on the defective valve and punctures the valve leaflet. A suture or a suture/guide wire combination is inserted, securing the top of the leaflet to the apex of the heart. A resilient element or shock absorber mechanism adjacent to the outside of the apex of the heart minimizes the linear travel of the device in response to the beating of the heart or opening/closing of the valve.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: October 7, 2014
    Assignee: University of Maryland, Baltimore
    Inventors: James Gammie, Rahul Patel, Mehrdad Ghoreishi
  • Publication number: 20140114404
    Abstract: Methods and devices for repairing a cardiac valve. A minimally invasive procedure includes creating an access in the apex region of the heart through which one or more instruments may be inserted. The device can implant artificial heart valve chordae tendineae into cardiac valve leaflet tissues to restore proper leaflet function and prevent reperfusion. The device punctures the apex of the heart and travels through the ventricle. The tip of the device rests on the defective valve and punctures the valve leaflet. A suture or a suture/guide wire combination is inserted, securing the top of the leaflet to the apex of the heart. A resilient element or shock absorber mechanism adjacent to the outside of the apex of the heart minimizes the linear travel of the device in response to the beating of the heart or opening/closing of the valve.
    Type: Application
    Filed: December 23, 2013
    Publication date: April 24, 2014
    Applicant: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventors: James Gammie, Rahul Patel, Mehrdad Ghoreishi