Patents by Inventor Rassoll Rashidi
Rassoll Rashidi 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: 10143516Abstract: A remotely deflectable electrophysiology/ablation catheter of the type intended for placing into an interior passage of the heart. The distal end of the catheter has a pair of tension/compression members each with a flattened end portion connected to the distal electrode and extending through the catheter casing and attached to an actuator for effecting the tension/compression thereon for remotely curling the distal end of the catheter. Spaced ring electrodes are provided adjacent the distal electrode. A permanent bend is pre-formed in the casing and tension/compression members adjacent the ring electrodes about an axis perpendicular to the elongated tension/compression members. Movement of the remote actuator causes the distal portion of the catheter to curl into a lariat in a plane perpendicular to the axis along the elongated catheter casing, thus permitting electrical mapping or ablation with the distal and/or ring electrodes.Type: GrantFiled: June 23, 2014Date of Patent: December 4, 2018Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventor: Rassoll Rashidi
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Publication number: 20140364845Abstract: A remotely deflectable electrophysiology/ablation catheter of the type intended for placing into an interior passage of the heart. The distal end of the catheter has a pair of tension/compression members each with a flattened end portion connected to the distal electrode and extending through the catheter casing and attached to an actuator for effecting the tension/compression thereon for remotely curling the distal end of the catheter. Spaced ring electrodes are provided adjacent the distal electrode. A permanent bend is pre-formed in the casing and tension/compression members adjacent the ring electrodes about an axis perpendicular to the elongated tension/compression members. Movement of the remote actuator causes the distal portion of the catheter to curl into a lariat in a plane perpendicular to the axis along the elongated catheter casing, thus permitting electrical mapping or ablation with the distal and/or ring electrodes.Type: ApplicationFiled: June 23, 2014Publication date: December 11, 2014Inventor: Rassoll Rashidi
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Patent number: 8758338Abstract: A remotely deflectable electrophysiology/ablation catheter of the type intended for placing into an interior passage of the heart is disclosed. The distal end of this elongated tubular catheter has a pair of tension/compression members each with a flattened end portion connected to the distal electrode and extending through the catheter casing and attached to a user moveable actuator for effecting the tension/compression thereon for remotely curling the distal end of the catheter. Spaced ring electrodes are provided adjacent the distal electrode. A permanent bend is pre-formed in the casing and tension/compression members adjacent the ring electrodes about an axis perpendicular to the elongated tension/compression members.Type: GrantFiled: June 7, 2006Date of Patent: June 24, 2014Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventor: Rassoll Rashidi
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Publication number: 20110301536Abstract: A deflectable tip cardiac electrophysiology/ablation lumen catheter includes first and second passages, one of which communicates with an inflatable member or balloon. The second passage terminates in an opening or port downstream of the inflatable member. The second passage is adapted to introduce a liquid during an electrophysiology study while the inflatable member prevents backflow of an injected liquid or dye and blood, or is adapted to alternatively receive a guide wire or other medical device therethrough.Type: ApplicationFiled: August 12, 2011Publication date: December 8, 2011Inventor: Rassoll Rashidi
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Patent number: 8000764Abstract: A deflectable tip cardiac electrophysiology/ablation lumen catheter includes first and second passages, one of which communicates with an inflatable member or balloon. The second passage terminates in an opening or port downstream of the inflatable member. The second passage is adapted to introduce a liquid during an electrophysiology study while the inflatable member prevents backflow of an injected liquid or dye and blood, or is adapted to alternatively receive a guide wire or other medical device therethrough.Type: GrantFiled: March 29, 2007Date of Patent: August 16, 2011Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventor: Rassoll Rashidi
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Patent number: 7881809Abstract: A cardiac catheter for minimally invasive diagnostic and/or ablation procedures includes an elongated cylindrical, electrically non-conductive exterior tube with surface electrodes disposed on its distal portion and a handle on its proximal end. The distal portion can be curved into a curvature retained by a single action on a manual actuator. An electromechanical drive system may be incorporated into the handle. An electrical heating element may be incorporated within the distal electrode for ablation procedures. A removable, disposable blood contacting segment may be provided. The non-blood contacting actuator is thus reusable. The catheter includes two tension/compression members, which are wires with circular cross-sections that are integrally formed into ribbon-like configurations at their distal portions, for curvature formation.Type: GrantFiled: December 5, 2006Date of Patent: February 1, 2011Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventor: Rassoll Rashidi
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Publication number: 20100179537Abstract: A probe operates in conjunction with an ablation system to prevent accidental injury of the esophagus during atrial ablation procedures. A distal portion of the probe is placed into the esophagus via the nasal cavity and positioned in the region of the esophagus that is in contact with the left atrium. Regulated cooling fluid with desired temperature and pressure continuously circulates from the external source of the related device into a sac of the probe. Temperature and pressure sensors are disposed within the sac of the probe to transmit data to the external related devices of this invention. The information from the sensors within the sac of the probe can provide a safety feature to control or stop the energy delivery from the ablation energy generator (i.e., radio frequency generator) and to prevent the advancement of the lesion formation that is created by the tip of the ablation catheter in the left atrium.Type: ApplicationFiled: March 23, 2010Publication date: July 15, 2010Inventor: Rassoll Rashidi
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Publication number: 20080077126Abstract: A probe operates in conjunction with an ablation system to prevent accidental injury of the esophagus during atrial ablation procedures. A distal portion of the probe is placed into the esophagus via the nasal cavity and positioned in the region of the esophagus that is in contact with the left atrium. In one embodiment of this invention the probe comprises an elongated flexible tube with an expandable sac, either compliant or non-compliant, disposed at is distal portion. Regulated cooling fluid with desired temperature and pressure is continuously circulating from the external source of the related device into the sac of the probe. The sac is positioned into the esophagus region that is in contact with the left atrium. Temperature and pressure sensors are disposed within the sac of the probe to transmit data to the external related devices of this invention.Type: ApplicationFiled: September 22, 2006Publication date: March 27, 2008Inventor: Rassoll Rashidi
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Publication number: 20070244537Abstract: A deflectable tip cardiac electrophysiology/ablation lumen catheter includes first and second passages, one of which communicates with an inflatable member or balloon. The second passage terminates in an opening or port downstream of the inflatable member. The second passage is adapted to introduce a liquid during an electrophysiology study while the inflatable member prevents backflow of an injected liquid or dye and blood, or is adapted to alternatively receive a guide wire or other medical device therethrough.Type: ApplicationFiled: March 29, 2007Publication date: October 18, 2007Inventor: Rassoll Rashidi
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Patent number: 7245955Abstract: An electrophysiology/ablation catheter assembly includes an elongated flexible casing that received a first catheter deflection assembly. Electrical leads are connected to each electrode on a distal portion of the catheter assembly and extend through the casing for external connection at a proximal end of the catheter assembly. A first actuator is operatively connected to the first catheter deflection assembly and operable upon movement to selectively effect displacement of the distal end. A second catheter deflection assembly is also disposed in the casing. A second actuator is connected adjacent the proximal end of the catheter deflection assembly and operable upon movement to selectively effect lateral displacement of the catheter at a location spaced from the first curved configuration of the distal end.Type: GrantFiled: February 23, 2004Date of Patent: July 17, 2007Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventor: Rassoll Rashidi
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Patent number: 7218958Abstract: A deflectable tip cardiac electrophysiology/ablation lumen catheter includes first and second passages, one of which communicates with an inflatable member or balloon. The second passage terminates in an opening or port downstream of the inflatable member. The second passage is adapted to introduce a liquid during an electrophysiology study while the inflatable member prevents backflow of an injected liquid or dye and blood, or is adapted to alternatively receive a guide wire therethrough.Type: GrantFiled: February 23, 2004Date of Patent: May 15, 2007Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventor: Rassoll Rashidi
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Publication number: 20070078455Abstract: A cardiac catheter for minimally invasive diagnostic and/or ablation procedures includes an elongated cylindrical, electrically non-conductive exterior tube with surface electrodes disposed on its distal portion and a handle on its proximal end. The distal portion can be curved into a curvature retained by a single action on a manual actuator. An electromechanical drive system may be incorporated into the handle. An electrical heating element may be incorporated within the distal electrode for ablation procedures. A removable, disposable blood contacting segment may be provided. The non-blood contacting actuator is thus reusable. The catheter includes two tension/compression members, which are wires with circular cross-sections that are integrally formed into ribbon-like configurations at their distal portions, for curvature formation.Type: ApplicationFiled: December 5, 2006Publication date: April 5, 2007Inventor: Rassoll Rashidi
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Publication number: 20060229599Abstract: A remotely deflectable electrophysiology/ablation catheter of the type intended for placing into an interior passage of the heart is disclosed. The distal end of this elongated tubular catheter has a pair of tension/compression members each with a flattened end portion connected to the distal electrode and extending through the catheter casing and attached to a user moveable actuator for effecting the tension/compression thereon for remotely curling the distal end of the catheter. Spaced ring electrodes are provided adjacent the distal electrode. A permanent bend is pre-formed in the casing and tension/compression members adjacent the ring electrodes about an axis perpendicular to the elongated tension/compression members.Type: ApplicationFiled: June 7, 2006Publication date: October 12, 2006Inventor: Rassoll Rashidi
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Patent number: 7081114Abstract: A remotely deflectable electrophysiology/ablation catheter of the type intended for placing into an interior passage of the heart is disclosed. The distal end of this elongated tubular catheter has a pair of tension/compression members each with a flattened end portion connected to the distal electrode and extending through the catheter casing and attached to a user moveable actuator for effecting the tension/compression thereon for remotely curling the distal end of the catheter. Spaced ring electrodes are provided adjacent the distal electrode. A permanent bend is pre-formed in the casing and tension/compression members adjacent the ring electrodes about an axis perpendicular to the elongated tension/compression members.Type: GrantFiled: May 13, 2003Date of Patent: July 25, 2006Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventor: Rassoll Rashidi
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Publication number: 20050187455Abstract: An electrophysiology/ablation catheter assembly includes an elongated flexible casing that received a first catheter deflection assembly. Electrical leads are connected to each electrode on a distal portion of the catheter assembly and extend through the casing for external connection at a proximal end of the catheter assembly. A first actuator is operatively connected to the first catheter deflection assembly and operable upon movement to selectively effect displacement of the distal end. A second catheter deflection assembly is also disposed in the casing. A second actuator is connected adjacent the proximal end of the catheter deflection assembly and operable upon movement to selectively effect lateral displacement of the catheter at a location spaced from the first curved configuration of the distal end.Type: ApplicationFiled: February 23, 2004Publication date: August 25, 2005Inventor: Rassoll Rashidi
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Publication number: 20050187456Abstract: A deflectable tip cardiac electrophysiology/ablation lumen catheter includes first and second passages, one of which communicates with an inflatable member or balloon. The second passage terminates in an opening or port downstream of the inflatable member. The second passage is adapted to introduce a liquid during an electrophysiology study while the inflatable member prevents backflow of an injected liquid or dye and blood, or is adapted to alternatively receive a guide wire therethrough.Type: ApplicationFiled: February 23, 2004Publication date: August 25, 2005Inventor: Rassoll Rashidi
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Patent number: 6728563Abstract: A remotely bi-directional deflectable electrophysiology/ablation catheter of the type intended for placing into an interior passage of the heart is disclosed. The distal end of this elongated tubular catheter has a pair of tension/compression members each with a flattened end portion connected to the distal electrode and extending through the catheter casing and attached to a user moveable actuator for effecting the tension/compression thereon for remotely curling the distal end of the catheter. Spaced ring electrodes are provided adjacent the distal electrode. A permanent bend is pre-formed in the casing and tension/compression members adjacent the ring electrodes about an axis perpendicular to the elongated tension/compression members.Type: GrantFiled: November 29, 2000Date of Patent: April 27, 2004Assignee: St. Jude Medical, Daig Division, Inc.Inventor: Rassoll Rashidi
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Publication number: 20040034348Abstract: A remotely deflectable electrophysiology/ablation catheter of the type intended for placing into an interior passage of the heart is disclosed. The distal end of this elongated tubular catheter has a pair of tension/compression members each with a flattened end portion connected to the distal electrode and extending through the catheter casing and attached to a user moveable actuator for effecting the tension/compression thereon for remotely curling the distal end of the catheter. Spaced ring electrodes are provided adjacent the distal electrode. A permanent bend is pre-formed in the casing and tension/compression members adjacent the ring electrodes about an axis perpendicular to the elongated tension/compression members.Type: ApplicationFiled: May 13, 2003Publication date: February 19, 2004Applicant: ST. JUDE MEDICAL, DAIG DIVISION, INC.Inventor: Rassoll Rashidi
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Publication number: 20030109778Abstract: A cardiac catheter employed for minimally invasive cardiac diagnostic electrophysiology and/or cardiac ablation procedures. The catheter of this invention comprises of an elongated cylindrical and electrically non conductive main exterior tube with plurality of surface electrodes disposed on its distal portion, and a handle on its proximal end. The distal portion of this catheter can be curved and the assumed curvature can be retained by a single action on manual actuator of the catheter handle. In one embodiment of this invention an electromechanical drive system is incorporated into the catheter handle for formation of curvatures at the distal portion of the catheter. In a further embodiment an electrical heating element is incorporated within the distal electrode of the catheter for ablation procedures. In another embodiment of this invention a readily removable and disposable blood contacting segment is provided.Type: ApplicationFiled: September 30, 2002Publication date: June 12, 2003Applicant: CARDIAC ASSIST DEVICES, INC.Inventor: Rassoll Rashidi
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Patent number: 6436133Abstract: An expandable intraluminal graft for use within a body cavity having a tubular shaped member with two ends and a wall surface disposed between the ends. The wall surface is formed by a plurality of intersecting elongated members wherein the elongated members intersecting with one another intermediate the ends of the tubular shaped member. The tubular shaped member has a first diameter to permit intraluminal delivery of the member into a body cavity, and a second variable expanded diameter.Type: GrantFiled: March 22, 1999Date of Patent: August 20, 2002Inventors: Joseph G. Furst, Rassoll Rashidi