Patents by Inventor Yaron Keidar
Yaron Keidar 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).
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Patent number: 8500798Abstract: A two-stage or component-based valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The prosthetic valve comprises a support structure that is deployed at a treatment site. The prosthetic valve further comprises a valve member configured to be quickly connected to the support structure. The support structure may take the form of a stent that is expanded at the site of a native valve. If desired, the native leaflets may remain and the stent may be used to hold the native valve open. In this case, the stent may be balloon expandable and configured to resist the powerful recoil force of the native leaflets. The support structure is provided with a coupling means for attachment to the valve member, thereby fixing the position of the valve member in the body. The valve member may be a non-expandable type, or may be expandable from a compressed state to an expanded state.Type: GrantFiled: May 24, 2006Date of Patent: August 6, 2013Assignee: Edwards Lifesciences CorporationInventors: Stanton J. Rowe, Larry Wood, Henry Bourang, George Bakis, Benjamin Spenser, Netanel Benichou, Yaron Keidar, Assaf Bash
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Patent number: 8377117Abstract: An active annuloplasty ring holder having a template that can be folded or pivoted to the side allowing the template to align longitudinally with the handle and enter the patient's chest through a small incision. The holder may include a mechanism to remotely detach sutures fastening the ring to the holder, thereby detaching the ring while avoiding the risk associated with introducing a scalpel into the operating field. A detachment mechanism may include a movable pin actuated by a pull wire that releases a plurality of holding sutures, or a hot wire, knives, or pull wire that severs the sutures. The holder may have a built-in light source for better visualization of the ring inside the heart. The holder may also have an optical means of visualizing the inside of the heart from the proximal end of the handle.Type: GrantFiled: September 8, 2008Date of Patent: February 19, 2013Assignee: Edwards Lifesciences CorporationInventors: Yaron Keidar, Vaso Adzich, Dan Rottenberg, Boaz Manash, Alon Nahshon
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Patent number: 8287591Abstract: The invention is an annuloplasty ring, and associated methods therefore, configured to reshape a native heart valve annulus to correct heart valve function, and also configured to be reshaped into a generally circular form in order to receive and/or support a prosthetic heart valve. The annuloplasty ring may be configured to have a generally D-shaped configuration when initially implanted to correct native valve function, but to assume a generally circular form when subjected to an outward force such as that provided by a dilation balloon.Type: GrantFiled: September 19, 2008Date of Patent: October 16, 2012Assignee: Edwards Lifesciences CorporationInventors: Yaron Keidar, Mark Konno
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Patent number: 8180430Abstract: A method for position tracking includes using first and second field generators located at respective different first and second locations to generate respective first and second magnetic fields in a vicinity of first and second objects. The first and second fields are measured using first and second position sensors respectively associated with the first and second objects. First and second potential relative coordinates of the first object relative to the second object are calculated responsively to the first and second magnetic field. The potential relative coordinates are processed in order to determine a correct relative coordinate of the first object relative to the second object.Type: GrantFiled: March 3, 2006Date of Patent: May 15, 2012Assignee: Biosense Webster, Inc.Inventors: Assaf Govari, Meir Bar-tal, Dudi Reznick, Doron Ludwin, Avi Shalgi, Yaron Keidar
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Publication number: 20110313426Abstract: A device useful for accessing the left atrium is provided. The device comprises an elongated tubular body and a dilating tip. The tubular body has an axis, a proximal end, a distal end and a lumen longitudinally extending therethrough. The dilating tip is slidably mounted on the distal end of the tubular body. The dilating tip comprises a segmented surface that is generally transverse to the axis of the tubular body, and a generally rigid tube extending distally from the segmented surface and having a sharp distal end. Distal movement of the tubular body relative to the dilating tip exerts a force on the segmented surface to thereby open the segmented surface.Type: ApplicationFiled: August 25, 2011Publication date: December 22, 2011Inventor: Yaron Keidar
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Patent number: 8066699Abstract: Catheters and methods for epicardial ablation are provided. A suitable catheter comprises an elongated catheter body and an ultrasound transducer mounted at or near the distal end of the catheter body. The transducer has a front surface and an opposing back surface, wherein the transducer is positioned to transmit ultrasound energy toward tissue facing the front surface but not toward tissue facing the back surface. A sensor is mounted within the catheter near the ultrasound transducer for sensing a location and an orientation of the ultrasound transducer within a patient. A suitable method involves introducing the distal end of the catheter introducing into the pericardium of a patient. The transducer's front surface is positioned so that it generally faces tissue to be ablated, and the tissue is ablated with ultrasound energy generated by the transducer.Type: GrantFiled: December 30, 2005Date of Patent: November 29, 2011Assignee: Biosense Webster, Inc.Inventor: Yaron Keidar
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Patent number: 8021387Abstract: A device useful for accessing the left atrium is provided. The device comprises an elongated tubular body and a dilating tip. The tubular body has an axis, a proximal end, a distal end and a lumen longitudinally extending therethrough. The dilating tip is slidably mounted on the distal end of the tubular body. The dilating tip comprises a segmented surface that is generally transverse to the axis of the tubular body, and a generally rigid tube extending distally from the segmented surface and having a sharp distal end. Distal movement of the tubular body relative to the dilating tip exerts a force on the segmented surface to thereby open the segmented surface.Type: GrantFiled: July 11, 2003Date of Patent: September 20, 2011Assignee: Biosense Webster, Inc.Inventor: Yaron Keidar
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Patent number: 7708775Abstract: A two-stage or component-based valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The prosthetic valve comprises a support structure that is deployed at a treatment site. The prosthetic valve further comprises a valve member configured to be quickly connected to the support structure. The support structure may take the form of a stent that is expanded at the site of a native valve. If desired, the native leaflets may remain and the stent may be used to hold the native valve open. In this case, the stent may be balloon expandable and configured to resist the powerful recoil force of the native leaflets. The support structure is provided with a coupling means for attachment to the valve member, thereby fixing the position of the valve member in the body. The valve member may be a non-expandable type, or may be expandable from a compressed state to an expanded state.Type: GrantFiled: May 24, 2006Date of Patent: May 4, 2010Assignee: Edwards Lifesciences CorporationInventors: Stanton J. Rowe, Larry Wood, Henry Bourang, George Bakis, Benjamin Spenser, Netanel Benichou, Yaron Keidar, Assaf Bash
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Publication number: 20100076549Abstract: The invention is an annuloplasty ring, and associated methods therefore, configured to reshape a native heart valve annulus to correct heart valve function, and also configured to be reshaped into a generally circular form in order to receive and/or support a prosthetic heart valve. The annuloplasty ring may be configured to have a generally D-shaped configuration when initially implanted to correct native valve function, but to assume a generally circular form when subjected to an outward force such as that provided by a dilation balloon.Type: ApplicationFiled: September 19, 2008Publication date: March 25, 2010Applicant: Edwards Lifesciences CorporationInventors: Yaron Keidar, Mark Konno
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Patent number: 7678104Abstract: Catheters and methods for epicardial ablation are provided. A suitable catheter comprises an elongated catheter body and an ultrasound transducer mounted at or near the distal end of the catheter body. The transducer has a front surface and an opposing back surface, wherein the transducer is positioned to transmit ultrasound energy toward tissue facing the front surface but not toward tissue facing the back surface. A sensor is mounted within the catheter near the ultrasound transducer for sensing a location and an orientation of the ultrasound transducer within a patient. A suitable method involves introducing the distal end of the catheter introducing into the pericardium of a patient. The transducer's front surface is positioned so that it generally faces tissue to be ablated, and the tissue is ablated with ultrasound energy generated by the transducer.Type: GrantFiled: July 17, 2003Date of Patent: March 16, 2010Assignee: Biosense Webster, Inc.Inventor: Yaron Keidar
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Patent number: 7670335Abstract: The present invention relates to a device assembly and tissue ablation transducer having a plurality of helical elements that can be operated out of phase to orient the acoustical energy beam forward or backward in the longitudinal direction. The transducers includes a cylindrical inner electrode, a cylindrical piezoelectric material disposed over the inner electrode, and a cylindrical outer electrode disposed over the cylindrical piezoelectric material. Spiral grooves are cut through at least the outer electrode separating the transducer into a plurality of functionally discrete helical transducer segments. The helical transducer segments can be operated independent from one another. An array of intertwined helical transducers arranged linearly along a helical axis are also contemplated.Type: GrantFiled: July 21, 2003Date of Patent: March 2, 2010Assignee: Biosense Webster, Inc.Inventor: Yaron Keidar
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Publication number: 20090093877Abstract: An active annuloplasty ring holder having a template that can be folded or pivoted to the side allowing the template to align longitudinally with the handle and enter the patient's chest through a small incision. The holder may include a mechanism to remotely detach sutures fastening the ring to the holder, thereby detaching the ring while avoiding the risk associated with introducing a scalpel into the operating field. A detachment mechanism may include a movable pin actuated by a pull wire that releases a plurality of holding sutures, or a hot wire, knives, or pull wire that severs the sutures. The holder may have a built-in light source for better visualization of the ring inside the heart. The holder may also have an optical means of visualizing the inside of the heart from the proximal end of the handle.Type: ApplicationFiled: September 8, 2008Publication date: April 9, 2009Inventors: Yaron Keidar, Vaso Adzich, Dan Rottenberg, Boaz Manash, Alon Nahshon
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Publication number: 20090093876Abstract: A valve loading apparatus is provided for loading a crimped prosthetic valve into a lumen of a delivery system. The valve recoil adapter can counteract recoil of a compressed prosthetic valve, and maintain the valve at its desired crimp diameter. An integrated bioprosthesis/delivery system is provided for delivering a bioprosthesis to a target area within a body lumen is provided. The delivery system includes a valve covering member and a compressing member, which compresses the valve covering member to surround, hold, and/or compress the valve during delivery to the target area.Type: ApplicationFiled: August 29, 2008Publication date: April 9, 2009Inventors: Yacov Nitzan, Benjamin Spenser, Yaron Keidar, Tamir Levi, Melissa Denton
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Publication number: 20090069854Abstract: An implantable electric device comprising: a deployable round structure initially in a cramped state and adapted to be expanded into a deployed state, with at least one of a plurality of coils provided about the structure; a power source; and an electric circuitry for generating alternating currents in said at least one of the plurality of coils to generate an alternating electromagnetic field within the structure. In some embodiments of the invention it serves as a motor, and in some embodiments it serves to enhance blood flow within a patient's vasculature.Type: ApplicationFiled: April 2, 2006Publication date: March 12, 2009Applicant: Eqlibra Medical Ltd.Inventors: Yaron Keidar, Michal Reshef
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Patent number: 7306593Abstract: A method for ablating tissue in an organ inside a body of a subject includes bringing a probe inside the body into a position in contact with the tissue to be ablated, and measuring one or more local parameters at the position using the probe prior to ablating the tissue. A map of the organ is displayed, showing, based on the one or more local parameters, a predicted extent of ablation of the tissue to be achieved for a given dosage of energy applied at the position using the probe. The given dosage of energy is applied to ablate the tissue using the probe, and an actual extent of the ablation at the position is measured using the probe subsequent to ablating the tissue. The measured actual extent of the ablation is displayed on the map for comparison with the predicted extent.Type: GrantFiled: January 14, 2004Date of Patent: December 11, 2007Assignee: Biosense, Inc.Inventors: Yaron Keidar, Assaf Govari, Yitzhack Schwartz
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Patent number: 7247269Abstract: The present invention relates to a method for making an ablation transducer having a plurality of helical elements that can be operated out of phase to orient the acoustical energy beam forward or backward in the longitudinal direction. The transducers includes a cylindrical inner electrode, a cylindrical piezoelectric material disposed over the inner electrode, and a cylindrical outer electrode disposed over the cylindrical piezoelectric material. Spiral grooves are cut through at least the outer electrode separating the transducer into a plurality of functionally discrete helical transducer segments. The helical transducer segments can be operated independent from one another. An array of intertwined helical transducers arranged linearly along a helical axis are also contemplated.Type: GrantFiled: July 21, 2003Date of Patent: July 24, 2007Assignee: Biosense Webster, Inc.Inventor: Yaron Keidar
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Publication number: 20060287719Abstract: A two-stage or component-based valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The prosthetic valve comprises a support structure that is deployed at a treatment site. The prosthetic valve further comprises a valve member configured to be quickly connected to the support structure. The support structure may take the form of a stent that is expanded at the site of a native valve. If desired, the native leaflets may remain and the stent may be used to hold the native valve open. In this case, the stent may be balloon expandable and configured to resist the powerful recoil force of the native leaflets. The support structure is provided with a coupling means for attachment to the valve member, thereby fixing the position of the valve member in the body. The valve member may be a non-expandable type, or may be expandable from a compressed state to an expanded state.Type: ApplicationFiled: May 24, 2006Publication date: December 21, 2006Inventors: Stanton Rowe, Larry Wood, Henry Bourang, George Bakis, Benjamin Spenser, Netanel Benichou, Yaron Keidar, Assaf Bash
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Publication number: 20060287717Abstract: A two-stage or component-based valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The prosthetic valve comprises a support structure that is deployed at a treatment site. The prosthetic valve further comprises a valve member configured to be quickly connected to the support structure. The support structure may take the form of a stent that is expanded at the site of a native valve. If desired, the native leaflets may remain and the stent may be used to hold the native valve open. In this case, the stent may be balloon expandable and configured to resist the powerful recoil force of the native leaflets. The support structure is provided with a coupling means for attachment to the valve member, thereby fixing the position of the valve member in the body. The valve member may be a non-expandable type, or may be expandable from a compressed state to an expanded state.Type: ApplicationFiled: May 24, 2006Publication date: December 21, 2006Inventors: Stanton Rowe, Larry Wood, Henry Bourang, George Bakis, Benjamin Spenser, Netanel Benichou, Yaron Keidar, Assaf Bash
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Publication number: 20060241394Abstract: A method for position tracking includes using first and second field generators located at respective different first and second locations to generate respective first and second magnetic fields in a vicinity of first and second objects. The first and second fields are measured using first and second position sensors respectively associated with the first and second objects. First and second potential relative coordinates of the first object relative to the second object are calculated responsively to the first and second magnetic field. The potential relative coordinates are processed in order to determine a correct relative coordinate of the first object relative to the second object.Type: ApplicationFiled: March 3, 2006Publication date: October 26, 2006Inventors: Assaf Govari, Meir Bar-tal, Dudi Reznick, Doron Ludwin, Avi Shalgi, Yaron Keidar
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Publication number: 20060122591Abstract: Catheters and methods for epicardial ablation are provided. A suitable catheter comprises an elongated catheter body and an ultrasound transducer mounted at or near the distal end of the catheter body. The transducer has a front surface and an opposing back surface, wherein the transducer is positioned to transmit ultrasound energy toward tissue facing the front surface but not toward tissue facing the back surface. A sensor is mounted within the catheter near the ultrasound transducer for sensing a location and an orientation of the ultrasound transducer within a patient. A suitable method involves introducing the distal end of the catheter introducing into the pericardium of a patient. The transducer's front surface is positioned so that it generally faces tissue to be ablated, and the tissue is ablated with ultrasound energy generated by the transducer.Type: ApplicationFiled: December 30, 2005Publication date: June 8, 2006Inventor: Yaron Keidar