Patents by Inventor A. Adam Sharkawy

A. Adam Sharkawy 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: 20050192604
    Abstract: Devices and methods for placing a conduit in fluid communication with a target vessel to communicate the target vessel with a source of blood. A conduit is coupled to the target vessel by first and second securing components that compress or sandwich the vessel wall. The conduit may be preshaped to assume a desired orientation when in an unbiased state, for example, to allow the conduit to be deformed during delivery and then regain its desired orientation once which is regained when deployed. The first and second securing components may be any shape but are preferably elongated in the direction of the vessel axis, e.g., elliptical or rectangular, such that a minimum amount of material is present at the outlet to closely approximate the cross-sectional area of the native target vessel. The securing components do not significantly occlude the target vessel lumen, may be secured to the vessel wall in non-penetrating fashion, and provides a fluid-tight seal around the attachment site.
    Type: Application
    Filed: January 21, 2005
    Publication date: September 1, 2005
    Inventors: Dean Carson, Michael Reo, Stephen Olson, Keke Lepulu, Sam Crews, David Cole, Adam Sharkawy, Darin Gittings, Mark Foley
  • Patent number: 6902556
    Abstract: A method and device for occluding a patient's ascending aorta, maintaining circulation of oxygenated blood in the patient and delivering cardioplegic fluid to arrest the patient's heart. An aortic occlusion catheter has an occluding member for occluding the ascending aorta. The aortic occlusion catheter passes through a cannula. Delivery of oxygenated blood is accomplished through either the cannula of the aortic occlusion catheter. In another aspect of the invention, an arterial cannula having a curved or angled distal portion. An introducer straightens the distal portion for introduction into the patient. In still another aspect of the invention, an open-mesh stabilizer is used to stabilize a discoid occluding member.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: June 7, 2005
    Assignee: Heartport, Inc.
    Inventors: Kevin V. Grimes, Jan Komtebedde, Daniel C. Rosenman, Hanson S. Gifford, III, Michi E. Garrison, Wesley D. Sterman, David M. Taylor, A. Adam Sharkawy, Pinaki Ray
  • Patent number: 6808498
    Abstract: A guide member positioned through a coronary vessel and the wall of the heart provides access to a heart chamber. A first end of the guide member is passed through the coronary vessel and the heart wall into the heart chamber, and then is passed back out of the heart chamber. The end of the guide member may then be used to deliver devices into the heart chamber to carry out various medical procedures. A conduit delivery system is coupled to the end of the guide member and is delivered into the heart chamber and then used to place a conduit in the heart wall to communicate the coronary vessel with the heart chamber.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: October 26, 2004
    Assignee: Ventrica, Inc.
    Inventors: Gilbert S. Laroya, A. Adam Sharkawy, Mark J. Foley
  • Patent number: 6802847
    Abstract: Methods and devices for forming magnetic anastomoses between hollow bodies. End-to-side, side-to-side and end-to-end anastomoses can be created with or without a mechanical connection between the components. The anastomotic components may have various constructions and may be secured to a vessel in various manners, for example, magnetically, mechanically or adhesively. Also provided are alternative delivery devices, as well as devices for checking the position of a component on a loaded delivery device, and for checking the seal between a vessel and an anastomotic component secured thereto.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: October 12, 2004
    Assignee: Ventrica, Inc.
    Inventors: Dean F. Carson, Michael L. Reo, David H. Cole, Darin C. Gittings, Keke Lepulu, A. Adam Sharkawy, Adam Kessler
  • Publication number: 20040168691
    Abstract: Methods and devices for placing a target vessel in fluid communication with a source of blood and a target vessel. A conduit includes first portion adapted to be placed in fluid communication with a source of blood, such as a heart chamber, and a second portion adapted to be placed in fluid communication with a target vessel having a lumen, such as coronary artery. The first and second conduit portions are transverse to each other such that the conduit is generally T-shaped. The conduit lies on an exterior of the heart between the blood source and the target vessel and is configured to deliver blood in multiple directions into the lumen of the target vessel. For example, in an occluded coronary artery, blood flows both toward and away from the occlusion. The conduit may be flexible, rigid, collapsible or non-collapsible, and may be formed of synthetic vascular graft material, tissue, or a combination of the two.
    Type: Application
    Filed: February 13, 2004
    Publication date: September 2, 2004
    Inventors: A. Adam Sharkawy, Dean F. Carson, Darin C. Gittings, Keke J. Lepulu, Mark J. Foley, Wally S. Buch, Alan R. Rapacki
  • Publication number: 20040167444
    Abstract: A guide member positioned through a coronary vessel and the wall of the heart provides access to a heart chamber. A first end of the guide member is passed through the coronary vessel and the heart wall into the heart chamber, and then is passed back out of the heart chamber. The end of the guide member may then be used to deliver devices into the heart chamber to carry out various medical procedures. A conduit delivery system is coupled to the end of the guide member and is delivered into the heart chamber and then used to place a conduit in the heart wall to communicate the coronary vessel with the heart chamber.
    Type: Application
    Filed: February 23, 2004
    Publication date: August 26, 2004
    Applicant: VENTRICA, INC., Corporation of Delaware
    Inventors: Gilbert S. Laroya, A. Adam Sharkawy, Mark J. Foley
  • Publication number: 20040113306
    Abstract: Methods and devices for manufacturing a conduit for placing a target vessel in fluid communication with a source of blood, such as a heart chamber containing blood. The conduit includes first and second portion adapted to be placed in fluid communication with a heart chamber and a target vessel. The conduit lies on the exterior of the myocardium between the blood source and the target vessel and delivers blood in multiple directions within the lumen of the target vessel. The conduit, which may be formed of any suitable synthetic vascular graft material, is generally T-shaped with the leg having two free ends disposed in the target vessel, preferably being secured thereto via a suture-free attachment. The conduit comprises vascular graft material and may be manufactured various ways, such as molding a conduit from any suitable biocompatible material or fabricating a conduit from one or more pieces of vascular graft material.
    Type: Application
    Filed: September 29, 2003
    Publication date: June 17, 2004
    Inventors: Alan R. Rapacki, Dean F. Carson, A. Adam Sharkawy
  • Publication number: 20040116945
    Abstract: Anastomotic components may be attached to hollow bodies or vessels by magnetic or mechanical force to create an anastomosis, form a port in a vessel, or repair a diseased vessel lumen. Anastomoses are created by coupling a first connection to an end of a vessel and then attracting it to a second connector secured to the side wall of another vessel. The connection between the first and second connectors may be solidly magnetic, solely mechanical, or a combination thereof. Also disclosed are methods and devices for treating diseased vessel lumens, for example abdominal aortic aneurysm. A plurality of docking members is attached to the vessel at solicited positions, and then one or more grafts is secured to the docking members in any suitable manner.
    Type: Application
    Filed: May 23, 2003
    Publication date: June 17, 2004
    Applicant: VENTRICA, INC., A Delaware Corporation
    Inventors: A. Adam Sharkawy, J. Greg Stine, David H. Cole, Samuel Crews, Darin C. Gittings, Adam Kessler, Mark J. Foley
  • Publication number: 20040097988
    Abstract: Methods and devices for placing a conduit in fluid communication with a target vessel and a source of blood, such as the aorta or a heart chamber. The device may be actuated using one hand to place the conduit. The invention allows air in the conduit to be removed prior to placement of the conduit. The invention deploys the conduit in the target vessel by moving a sheath in a distal direction and then in a proximal direction. A conduit is provided with a reinforcing member to prevent kinking of the conduit, and a structure for preventing blockage of the conduit by tissue. A vessel coupling may be used to secure a conduit to a target vessel so as to preserve native blood flow through the vessel, and the conduit may be placed in fluid communication with a target vessel via a laparoscopic or endoscopic procedure.
    Type: Application
    Filed: May 19, 2003
    Publication date: May 20, 2004
    Applicant: VENTRICA, INC.
    Inventors: Darin C. Gittings, Alan R. Rapacki, Dean F. Carson, David H. Cole, Keke Lepulu, Adam Sharkawy, Gilbert S. Laroya, Wally S. Buch
  • Publication number: 20040034377
    Abstract: Anastomotic components may be attached to hollow bodies or vessels by magnetic or mechanical force to create an anastomosis, form a port in a vessel, or repair a diseased vessel lumen. Anastomoses are created by coupling a first connection to an end of a vessel and then attracting it to a second connector secured to the side wall of another vessel. The connection between the first and second connectors may be solidly magnetic, solely mechanical, or a combination thereof. Also disclosed are methods and devices for treating diseased vessel lumens, for example abdominal aortic aneurysm. A plurality of docking members is attached to the vessel at solicited positions, and then one or more grafts is secured to the docking members in any suitable manner.
    Type: Application
    Filed: March 12, 2003
    Publication date: February 19, 2004
    Applicant: VENTRICA, INC.
    Inventors: A. Adam Sharkawy, J. Greg Stine, David H. Cole, Samuel Crews, Darin C. Gittings, Adam Kessler, Mark J. Foley
  • Publication number: 20030229363
    Abstract: Methods and devices are provided to facilitate the natural formation of a connection between tissue structures within the body. Certain of the subject methods provide for the formation on an anastomotic site between a graft vessel and a native vessel, such as vessels of the cardiovasculature, peripheral vasculature and neurovasculature, angiogenic, by means of facilitating angiogenic and/or arteriogenic processes at one or more selected points of contact or close proximity between the vessels. The subject devices include a mechanism for positioning or situating one vessel adjacent to another vessel, in situ, wherein a selected portion of each vessel is in contact or in close proximity with the other vessel such that a natural bond is formed between the outer tissue surfaces of the vessels at the point of contact or close proximity followed by the naturally occurring angiogenic and/or arteriogenic processes of the body.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 11, 2003
    Inventors: A. Adam Sharkawy, Florian Ludwig
  • Patent number: 6635214
    Abstract: Methods and devices for manufacturing a conduit for placing a target vessel in fluid communication with a source of blood, such as a heart chamber containing blood. The conduit includes first and second portion adapted to be placed in fluid communication with a heart chamber and a target vessel. The conduit lies on the exterior of the myocardium between the blood source and the target vessel and delivers blood in multiple directions within the lumen of the target vessel. The conduit, which may be formed of any suitable synthetic vascular graft material, is generally T-shaped with the leg having two free ends disposed in the target vessel, preferably being secured thereto via a suture-free attachment. The conduit comprises vascular graft material and may be manufactured various ways, such as molding a conduit from any suitable biocompatible material or fabricating a conduit from one or more pieces of vascular graft material.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: October 21, 2003
    Assignee: Ventrica, Inc.
    Inventors: Alan R. Rapacki, Dean F. Carson, A. Adam Sharkawy
  • Publication number: 20030158573
    Abstract: Devices and methods utilized in performing transmyocardial coronary bypass include retractors used to engage and support myocardial tissue, and mechanisms for supporting coronary vessels so as to allow precise entry into a vessel lumen. In addition, various conduits are provided having a configuration that permits their positioning in a heart wall to place a coronary vessel in communication with a heart chamber.
    Type: Application
    Filed: October 22, 2001
    Publication date: August 21, 2003
    Applicant: VENTRICA, INC
    Inventors: Darin C. Gittings, A. Adam Sharkawy, Alan R. Rapacki, Gilbert S. Laroya
  • Patent number: 6592547
    Abstract: A method and device for occluding a patient's ascending aorta, maintaining circulation of oxygenated blood in the patient and delivering cardioplegic fluid to arrest the patient's heart. An aortic occlusion catheter has an occluding member for occluding the ascending aorta. The aortic occlusion catheter passes through a cannula. Delivery of oxygenated blood is accomplished through either the cannula or the aortic occlusion catheter. In another aspect of the invention, an arterial cannula having a curved or angled distal portion. An introducer straightens the distal portion for introduction into the patient. In still another aspect of the invention, an open-mesh stabilizer is used to stabilize a discoid occluding member.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: July 15, 2003
    Inventors: Kevin V. Grimes, Jan Komtebedde, Daniel C. Rosenman, Hanson S. Gifford, III, Michi E. Garrison, Wesley D. Sterman, David M. Taylor, A. Adam Sharkawy, Pinaki Ray
  • Patent number: 6589206
    Abstract: A method and device for occluding a patient's ascending aorta, maintaining circulation of oxygenated blood in the patient and delivering cardioplegic fluid to arrest the patient's heart. An aortic occlusion catheter has an occluding member for occluding the ascending aorta. The aortic occlusion catheter passes through a cannula. Delivery of oxygenated blood is accomplished through either the cannula or the aortic occlusion catheter.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: July 8, 2003
    Assignee: Heartport, Inc.
    Inventors: A. Adam Sharkawy, Wesley D. Sterman, David M. Taylor, Pinaki Ray
  • Publication number: 20030082148
    Abstract: Methods and compositions for recruiting cells circulating in the blood stream of a subject to a blood contacting surface, and in particular, devices and methods for recruiting endothelial cells to a blood contacting surface of a prosthesis as well as engineering a self-endothelializing graft in vivo by recruitment of circulating endothelial progenitor cells (EPCs) to form a neo-endothelium on a prosthetic structure.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 1, 2003
    Inventors: Florian Ludwig, A. Adam Sharkawy
  • Publication number: 20030015816
    Abstract: Methods and devices for manufacturing a conduit for placing a target vessel in fluid communication with a source of blood, such as a heart chamber containing blood. The conduit includes first and second portion adapted to be placed in fluid communication with a heart chamber and a target vessel. The conduit lies on the exterior of the myocardium between the blood source and the target vessel and delivers blood in multiple directions within the lumen of the target vessel. The conduit, which may be formed of any suitable synthetic vascular graft material, is generally T-shaped with the leg having two free ends disposed in the target vessel, preferably being secured thereto via a suture-free attachment. The conduit comprises vascular graft material and may be manufactured various ways, such as molding a conduit from any suitable biocompatible material or fabricating a conduit from one or more pieces of vascular graft material.
    Type: Application
    Filed: September 10, 1999
    Publication date: January 23, 2003
    Inventors: ALAN RAPACKI, DEAN CARSON, ADAM SHARKAWY
  • Publication number: 20020151870
    Abstract: A method and device for occluding a patient's ascending aorta, maintaining circulation of oxygenated blood in the patient and delivering cardioplegic fluid to arrest the patient's heart. An aortic occlusion catheter has an occluding member for occluding the ascending aorta. The aortic occlusion catheter passes through a cannula. Delivery of oxygenated blood is accomplished through either the cannula of the aortic occlusion catheter. In another aspect of the invention, an arterial cannula having a curved or angled distal portion. An introducer straightens the distal portion for introduction into the patient. In still another aspect of the invention, an open-mesh stabilizer is used to stabilize a discoid occluding member.
    Type: Application
    Filed: June 5, 2002
    Publication date: October 17, 2002
    Inventors: Kevin V. Grimes, Jan Komtebedde, Daniel C. Rosenman, Hanson S. Gifford, Michi E. Garrison, Wesley D. Sterman, David M. Taylor, A. Adam Sharkawy, Pinaki Ray
  • Publication number: 20020144696
    Abstract: Methods and devices for placing a target vessel in fluid communication with a source of blood and a target vessel. A conduit includes first portion adapted to be placed in fluid communication with a source of blood, such as a heart chamber, and a second portion adapted to be placed in fluid communication with a target vessel having a lumen, such as coronary artery. The first and second conduit portions are transverse to each other such that the conduit is generally T-shaped. The conduit lies on an exterior of the heart between the blood source and the target vessel and is configured to deliver blood in multiple directions into the lumen of the target vessel. For example, in an occluded coronary artery, blood flows both toward and away from the occlusion. The conduit may be flexible, rigid, collapsible or non-collapsible, and may be formed of synthetic vascular graft material, tissue, or a combination of the two.
    Type: Application
    Filed: September 10, 1999
    Publication date: October 10, 2002
    Inventors: A. ADAM SHARKAWY, DEAN CARSON, DARIN GITTINGS, KEKE LEPULU, MARK FOLEY, WALLY BUCH, ALAN RAPACKI
  • Publication number: 20020143347
    Abstract: Methods and devices using magnetic force to form an anastomosis between hollow bodies. End-to-side, side-to-side and end-to-end anastomoses can be created without using suture or any other type of mechanical fasteners, although such attachment means may be used in practicing some aspects of the invention. Magnetic anastomotic components may be attached to the exterior of a vessel, e.g., by adhesive, without extending into the vessel lumen. Various magnetic component configurations are provided and may have different characteristics, for example, the ability to match the vessel curvature or to frictionally engage the vessel.
    Type: Application
    Filed: December 13, 2001
    Publication date: October 3, 2002
    Applicant: Ventrica, Inc.
    Inventors: David Cole, Michael Reo, Dean Carson, Darin Gittings, A. Adam Sharkawy, Mark Foley