Patents by Inventor Alain Sadaka
Alain Sadaka 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: 9451929Abstract: A catheter assembly for an intravascular ultrasound system includes a catheter and an imaging core. The catheter has a longitudinal length, a distal end, and a proximal end. The catheter includes a sealable lumen extending along the longitudinal length of the catheter from the proximal end to the distal end, and a movable plunger or a movable seal in fluid communication with the lumen. The movable plunger or the movable seal provides a gas-tight seal. The movable plunger or the movable seal is configured and arranged for adjusting to changes in volume of the lumen when the lumen is filled with an acoustically-favorable medium and sealed. The imaging core is configured and arranged for inserting into the sealable lumen and for coupling to a control module.Type: GrantFiled: April 16, 2009Date of Patent: September 27, 2016Assignee: Boston Scientific Scimed, Inc.Inventor: Alain Sadaka
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Publication number: 20140243850Abstract: A teleoperated surgical system including a rigid cannula and a surgical instrument is provided. The rigid cannula may include at least a portion having a curved longitudinal axis. The teleoperated surgical system may include a force transmission mechanism configured to engage a patient side manipulator of the teleoperated surgical system, a flexible shaft, and an end effector coupled to the shaft. The end effector may have a shape enhancing visibility of the end effector and/or enhancing visibility of procedures performed with the end effector. Further, the shape of the end effector may enhance grasping of objects. The end effector may comprise a pair of jaws. At least a portion of each jaw may have a curved longitudinal axis. A surgical instrument and a teleoperated surgical system including a surgical instrument and a needle are also provided.Type: ApplicationFiled: February 27, 2014Publication date: August 28, 2014Applicant: INTUITIVE SURGICAL OPERATIONS, INC.Inventor: Alain SADAKA
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Patent number: 8523778Abstract: A catheter assembly for an intravascular ultrasound system includes a hub disposed at a proximal end of a catheter. The hub includes a rotatable connector shaft disposed at least partially in a lumen that extends from the hub to a distal end of the catheter. A pumping apparatus is coupled to the connector shaft such that rotation of the connector shaft causes a corresponding rotation of the pumping apparatus. A reservoir is in fluid communication with the pumping apparatus. The reservoir is configured and arranged for inputting an acoustically-favorable medium to the pumping apparatus. An imaging core is configured and arranged for inserting into the lumen. The imaging core includes an imaging device coupled to a rotatable drive member. The rotatable connector shaft is coupled to a proximal end of the drive member such that rotation of the connector shaft causes a corresponding rotation of the imaging core.Type: GrantFiled: November 12, 2010Date of Patent: September 3, 2013Assignee: Boston Scientific SciMed, Inc.Inventor: Alain Sadaka
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Patent number: 8390174Abstract: Described herein are electrical connections to acoustic elements, e.g., piezoelectric elements. In an exemplary embodiment, a transducer comprises an acoustic element, a passive layer attached to the acoustic element, and a conductive post embedded in the passive layer to provide a direct low resistance electrical connection to the acoustic element. In one embodiment, the conductive post has an exposed side surface allowing electrical connections to be made from the side of the transducer. In another embodiment, the conductive post has an exposed bottom surface allowing electrical connections to be made from the bottom of the transducer. In another embodiment, the transducer comprises an extension substrate adjacent to the acoustic element for protecting the acoustic element from thermal stress when a connection is made to the transducer at high temperatures. In one embodiment, a circuit is integrated on the extension substrate to process signals to or from the acoustic element.Type: GrantFiled: December 27, 2007Date of Patent: March 5, 2013Assignee: Boston Scientific SciMed, Inc.Inventor: Alain Sadaka
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Publication number: 20120253197Abstract: An intravascular ultrasound imaging system includes a catheter that is insertable into a patient blood vessel. A flushing assembly is in fluid communication with a lumen of the catheter. The flushing assembly flushes air bubbles formed in acoustically-favorable medium in the catheter lumen in response to an event other than a user-initiated flushing prompt. The flushing assembly includes a reservoir containing acoustically-favorable medium for input into the catheter lumen, and a pump coupled to the reservoir. The pump pumps the acoustically-favorable medium from the reservoir to the catheter lumen. A connector is in fluid communication with the reservoir. The connector is coupleable with the catheter lumen. A controller is coupled to the pump. The controller is configured and arranged for controlling operation of the pump.Type: ApplicationFiled: March 27, 2012Publication date: October 4, 2012Applicant: Boston Scientific SciMed, Inc.Inventor: Alain Sadaka
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Publication number: 20110125027Abstract: A catheter assembly for an intravascular ultrasound system includes a hub disposed at a proximal end of a catheter. The hub includes a rotatable connector shaft disposed at least partially in a lumen that extends from the hub to a distal end of the catheter. A pumping apparatus is coupled to the connector shaft such that rotation of the connector shaft causes a corresponding rotation of the pumping apparatus. A reservoir is in fluid communication with the pumping apparatus. The reservoir is configured and arranged for inputting an acoustically-favorable medium to the pumping apparatus. An imaging core is configured and arranged for inserting into the lumen. The imaging core includes an imaging device coupled to a rotatable drive member. The rotatable connector shaft is coupled to a proximal end of the drive member such that rotation of the connector shaft causes a corresponding rotation of the imaging core.Type: ApplicationFiled: November 12, 2010Publication date: May 26, 2011Applicant: Boston Scientific Scimed, Inc.Inventor: Alain Sadaka
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Publication number: 20100325855Abstract: Provided herein are composite passive layers for ultrasound transducers having acoustic properties that can be easily tailored to the needs of the transducer application using current microfabrication techniques. In an embodiment, a passive layer comprises metal posts embedded in a polymer matrix or other material. The acoustic properties of the passive layer depend on the metal/polymer volume fraction of the passive layer, which can be easily controlled using current microfabrication techniques, e.g., integrated circuit (IC) fabrication techniques. Further, the embedded metal posts provide electrical conduction through the passive layer allowing electrical connections to be made to an active element, e.g., piezoelectric element, of the transducer through the passive layer. Because the embedded metal posts conduct along one line of direction, they can be used to provide separate electrical connections to different active elements in a transducer array through the passive layer.Type: ApplicationFiled: September 1, 2010Publication date: December 30, 2010Applicant: Boston Scientific Scimed, Inc.Inventors: Alain Sadaka, Jian R. Yuan
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Patent number: 7804228Abstract: Provided herein are composite passive layers for ultrasound transducers having acoustic properties that can be easily tailored to the needs of the transducer application using current microfabrication techniques. In an embodiment, a passive layer comprises metal posts embedded in a polymer matrix or other material. The acoustic properties of the passive layer depend on the metal/polymer volume fraction of the passive layer, which can be easily controlled using current microfabrication techniques, e.g., integrated circuit (IC) fabrication techniques. Further, the embedded metal posts provide electrical conduction through the passive layer allowing electrical connections to be made to an active element, e.g., piezoelectric element, of the transducer through the passive layer. Because the embedded metal posts conduct along one line of direction, they can be used to provide separate electrical connections to different active elements in a transducer array through the passive layer.Type: GrantFiled: December 18, 2007Date of Patent: September 28, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Alain Sadaka, Jian R. Yuan
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Publication number: 20090264769Abstract: A catheter assembly for an intravascular ultrasound system includes a catheter and an imaging core. The catheter has a longitudinal length, a distal end, and a proximal end. The catheter includes a sealable lumen extending along the longitudinal length of the catheter from the proximal end to the distal end, and a movable plunger or a movable seal in fluid communication with the lumen. The movable plunger or the movable seal provides a gas-tight seal. The movable plunger or the movable seal is configured and arranged for adjusting to changes in volume of the lumen when the lumen is filled with an acoustically-favorable medium and sealed. The imaging core is configured and arranged for inserting into the sealable lumen and for coupling to a control module.Type: ApplicationFiled: April 16, 2009Publication date: October 22, 2009Applicant: Boston Scientific SciMed, Inc.Inventor: Alain Sadaka
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Publication number: 20090171216Abstract: Described herein are electrical connections to acoustic elements, e.g., piezoelectric elements. In an exemplary embodiment, a transducer comprises an acoustic element, a passive layer attached to the acoustic element, and a conductive post embedded in the passive layer to provide a direct low resistance electrical connection to the acoustic element. In one embodiment, the conductive post has an exposed side surface allowing electrical connections to be made from the side of the transducer. In another embodiment, the conductive post has an exposed bottom surface allowing electrical connections to be made from the bottom of the transducer. In another embodiment, the transducer comprises an extension substrate adjacent to the acoustic element for protecting the acoustic element from thermal stress when a connection is made to the transducer at high temperatures. In one embodiment, a circuit is integrated on the extension substrate to process signals to or from the acoustic element.Type: ApplicationFiled: December 27, 2007Publication date: July 2, 2009Inventor: Alain Sadaka
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Publication number: 20090156939Abstract: Provided herein are composite passive layers for ultrasound transducers having acoustic properties that can be easily tailored to the needs of the transducer application using current microfabrication techniques. In an embodiment, a passive layer comprises metal posts embedded in a polymer matrix or other material. The acoustic properties of the passive layer depend on the metal/polymer volume fraction of the passive layer, which can be easily controlled using current microfabrication techniques, e.g., integrated circuit (IC) fabrication techniques. Further, the embedded metal posts provide electrical conduction through the passive layer allowing electrical connections to be made to an active element, e.g., piezoelectric element, of the transducer through the passive layer. Because the embedded metal posts conduct along one line of direction, they can be used to provide separate electrical connections to different active elements in a transducer array through the passive layer.Type: ApplicationFiled: December 18, 2007Publication date: June 18, 2009Inventors: Alain Sadaka, Jian R. Yuan
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Publication number: 20050283095Abstract: An actuating medical device and methods for making and using the same. The actuating medical device may include a proximal shaft portion having a distal end region, an actuating shaft portion attached to the distal end region, one or more actuating members coupled to or otherwise disposed adjacent the actuating shaft portion, and a distal shaft portion attached to the actuating shaft portion. The actuating shaft portion may include a shape memory material and may be adapted to shift between a first configuration and a second configuration. Using the actuating medical device may include positioning the actuating medical device in a blood vessel and shifting the actuating shaft portion between the first and second configurations.Type: ApplicationFiled: June 22, 2004Publication date: December 22, 2005Inventors: Ajitkumar Nair, Alain Sadaka