Patents by Inventor Ignacio Cespedes
Ignacio Cespedes 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: 11951607Abstract: A robotic waiter system that is programmed to serve a patron at an eating establishment. The robotic waiter comprises of a base that supports a tablet. The base has a servomotor that spins the tablet toward a patron that is placing an order. The servomotor is controlled by a microprocessor that is programmed to spin a display toward the source of the sound. The sound is captured by a trio of acoustic sensors that are mounted on a housing, the acoustic sensors are operatively connected to the microprocessor, and the microprocessor ensures that the display is directly aligned to the source of the sound.Type: GrantFiled: November 26, 2023Date of Patent: April 9, 2024Inventors: Jose Ignacio Acitores Garcia, Andres Vallejo Cespedes
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Patent number: 7524316Abstract: This invention is an improved method and device for treating varicose veins 200 or the greater saphenous vein 202. The method comprises the use of infrared laser radiation in the region of 1.2 to 2.2 um in a manner from inside the vessel 200 or 202 such that the endothelial cells of the vessel wall 704 are damaged and collagen fibers in the vessel wall 704 are heated to the point where they permanently contract, the vessel 200 or 202 is occluded and ultimately resorbed. The device includes a laser 102 delivered via a fiber optic catheter 300 that may have frosted or diffusing fiber tips 308, or that may be provided with a protective spacer. A motorized pull back device 104 may be used, and a thermal sensor 600 may be used to help control the power required to maintain the proper treatment temperature.Type: GrantFiled: November 4, 2004Date of Patent: April 28, 2009Assignee: CoolTouch, Inc.Inventors: David R. Hennings, Mitchel P. Goldman, Robert A. Weiss, Eric B. Taylor, Don Johnson, Ignacio Cespedes
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Publication number: 20090076395Abstract: The present invention provides intravascular diagnostic catheters that include a centrally disposed intravascular ultrasound (IVUS) imaging element and radially extendable, wall-contacting optical probe arms of a novel design for improving the IVUS imaging aspect of combined IVUS and optical analysis. In one embodiment, the dimension of the portion of the probe arm(s) that is in the field-of-view of the IVUS imaging element is minimized. In another embodiment, thin tethers are disposed in the field-of-view of the IVUS imaging element, rather than a continuation of the probe arm itself into the IVUS field. In still another embodiment, the probe arms at least substantially do not impinge on the field-of-view of the IVUS imaging element and tethers that are not within the field-of-view of the IVUS imaging element are used to control the probe arms, thereby providing a clear field-of-view for the IVUS imaging element.Type: ApplicationFiled: September 19, 2007Publication date: March 19, 2009Applicant: Prescient Medical, Inc.Inventor: E. Ignacio Cespedes
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Publication number: 20090024040Abstract: The present invention provides intravascular diagnostic catheters that include one or more wall-contacting/wall-approaching probes including IVUS probe elements and diagnostic systems including such catheters, for the evaluation and diagnosis of blood vessels. Also provided are intravascular catheters in which the wall-contacting/wall-approaching probes further include an optical probe element and systems including such catheters, for combined IVUS and optical analysis of a blood vessel wall.Type: ApplicationFiled: June 11, 2008Publication date: January 22, 2009Applicant: Prescient Medical, Inc.Inventor: Eduardo Ignacio Cespedes
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Publication number: 20050131400Abstract: This invention is an improved method and device for treating varicose veins 200 or the greater saphenous vein 202. The method comprises the use of infrared laser radiation in the region of 1.2 to 2.2 um in a manner from inside the vessel 200 or 202 such that the endothelial cells of the vessel wall 704 are damaged and collagen fibers in the vessel wall 704 are heated to the point where they permanently contract, the vessel 200 or 202 is occluded and ultimately resorbed. The device includes a laser 102 delivered via a fiber optic catheter 300 that may have frosted or diffusing fiber tips 308, or that may be provided with a protective spacer. A motorized pull back device 104 may be used, and a thermal sensor 600 may be used to help control the power required to maintain the proper treatment temperature.Type: ApplicationFiled: November 4, 2004Publication date: June 16, 2005Inventors: David Hennings, Mitchel Goldman, Robert Weiss, Eric Taylor, Don Johnson, Ignacio Cespedes
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Patent number: 6726629Abstract: An ultrasound image is obtained by subjecting an object containing an ultrasound contrast enhancement agent to a first imaging pulse burst and then to a second release pulse and then to a second imaging pulse to obtain two images and then comparing the two images to obtain an enhanced image.Type: GrantFiled: October 25, 2001Date of Patent: April 27, 2004Assignee: Acuson CorporationInventors: Peter J. A. Frinking, E. Ignacio Cespedes, Nico de Jong
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Publication number: 20040068190Abstract: Apparatus and methods are provided for measuring axial displacement of an imaging catheter, and for using real-time images acquired by the imaging catheter to measure axial lengths of anatomical sites. The apparatus of the present invention includes a catheter having an imaging element disposed on a distal portion and indicia disposed on a proximal portion. The length of the catheter permits the indicia to be disposed at least partially external to a patient and visible to a medical practitioner when the imaging element is disposed within the blood vessel. Accordingly, the medical practitioner can observe the indicia and associate axial locations of the catheter indicated by the indicia with images obtained by the imaging element.Type: ApplicationFiled: October 4, 2002Publication date: April 8, 2004Inventor: Eduardo Ignacio Cespedes
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Patent number: 6685646Abstract: A method to measure spatial fluid flow components and their velocity profiles in a number of locations in a cross-sectional area of a lumen or other body cavity by using ultrasound in which the cross-sectional area is interrogated by a plurality of ultrasonic beams; the estimation of the spatial flow components is obtained from a combination of estimations of axial, lateral and total flow; the estimation of one or more flow components is obtained through any combination of time-shift and decorrelation analysis of two or more beam-signals of the interrogating ultrasound transducer; and the estimation accuracy is further improved by the use of a reference decorrelation curve obtained from experiments or beam-theory or both.Type: GrantFiled: December 26, 2000Date of Patent: February 3, 2004Assignee: Jomed Inc.Inventors: Eduardo Ignacio Cespedes, Charles Theodoor LanceƩ, Antonius Franciscus Wilhemus Van Der Steen, Wenguang Li, Nicolaas Bom
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Publication number: 20030236443Abstract: The present invention provides methods and apparatus for identifying and stabilizing vulnerable plaque via multi-functional catheters having both infrared detection and imaging capabilities. It is expected that correlating imaging and infrared data will facilitate improved identification of vulnerable plaque. Apparatus of the present invention may also be provided with optional stabilization elements for stabilizing vulnerable plaque, as well as optional embolic protection. Methods of using apparatus of the present invention are also provided.Type: ApplicationFiled: March 20, 2003Publication date: December 25, 2003Inventors: Eduardo Ignacio Cespedes, Kenneth J. Michlitsch
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Publication number: 20030199767Abstract: The present invention provides methods and apparatus for identifying and stabilizing vulnerable plaque via multi-functional catheters having both thermography and imaging capabilities. It is expected that correlating imaging and thermography data will facilitate improved identification of vulnerable plaque. Apparatus of the present invention may also be provided with optional stabilization elements for stabilizing vulnerable plaque, as well as optional embolic protection. Methods of using apparatus of the present invention are provided.Type: ApplicationFiled: August 28, 2002Publication date: October 23, 2003Inventors: Eduardo Ignacio Cespedes, Kenneth J. Michlitsch
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Publication number: 20030199768Abstract: The present invention provides methods and apparatus for identifying and stabilizing vulnerable plaque via multi-functional catheters having both thermography and imaging capabilities. It is expected that correlating imaging and thermography data will facilitate improved identification of vulnerable plaque. Apparatus of the present invention may also be provided with optional stabilization elements for stabilizing vulnerable plaque, as well as optional embolic protection. Methods of using apparatus of the present invention are provided.Type: ApplicationFiled: August 28, 2002Publication date: October 23, 2003Inventors: Eduardo Ignacio Cespedes, Kenneth J. Michlitsch
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Publication number: 20030199747Abstract: The present invention provides methods and apparatus for identifying and stabilizing vulnerable plaque via multi-functional catheters having both thermography and imaging capabilities. It is expected that correlating imaging and thermography data will facilitate improved identification of vulnerable plaque. Apparatus of the present invention may also be provided with optional stabilization elements for stabilizing vulnerable plaque. Methods of using apparatus of the present invention are provided.Type: ApplicationFiled: April 19, 2002Publication date: October 23, 2003Inventors: Kenneth J. Michlitsch, Eduardo Ignacio Cespedes
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Publication number: 20020013530Abstract: A method to measure spatial fluid flow components and their velocity profiles in a number of locations in a cross-sectional area of a lumen or other body cavity by using ultrasound in which the cross-sectional area is interrogated by a plurality of ultrasonic beams; the estimation of the spatial flow components is obtained from a combination of estimations of axial, lateral and total flow; the estimation of one or more flow components is obtained through any combination of time-shift and decorrelation analysis of two or more beam-signals of the interrogating ultrasound transducer; and the estimation accuracy is further improved by the use of a reference decorrelation curve obtained from experiments or beam-theory or both.Type: ApplicationFiled: December 26, 2000Publication date: January 31, 2002Inventors: Eduardo Ignacio Cespedes, Charles Theodoor Lancee, Antonius Franciscus Wilhelmus Van Der Steen, Wenguang Li, Nicolaas Bom
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Patent number: 6213950Abstract: A method to measure spatial fluid flow components and their velocity profiles in a number of locations in a cross-sectional area of a lumen or other body cavity by using ultrasound in which the cross-sectional area is interrogated by a plurality of ultrasonic beams; the estimation of the spatial flow components is obtained from a combination of estimations of axial, lateral and total flow; the estimation of one or more flow components is obtained through any combination of time-shift and decorrelation analysis of two or more beam-signals of the interrogating ultrasound transducer, and the estimation accuracy is further improved by the use of a reference decorrelation curve.Type: GrantFiled: July 2, 1999Date of Patent: April 10, 2001Assignee: EndoSonics CorporationInventors: Eduardo Ignacio Cespedes, Charles Theodoor LanceƩ, Antonius Franciscus Wilhelmus Van Der Steen, Wenguang Li, Nicolaas Bom
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Patent number: 5474070Abstract: An improved ultrasonic pulse-echo method and apparatus that has particular application in making precision measurements of compressibility in any backscattering material, in particular organic tissue, is disclosed. The method employs a standard transducer or transducer containing device which is translated transaxially, thereby compressing or displacing a proximal region of a target body in small known increments. At each increment, a pulse is emitted and an echo sequence (A-line) is detected from regions within the target along the sonic travel path or beam of the transducer. Resulting time shifts in echo segments corresponding to features in the target, corrected for regions of varying sonic speed along the sonic path, provide relative and quantitative information concerning the strain caused by the compressions. The stress imparted by the transducer and containing device is also determined, corrected for depth along the sonic path.Type: GrantFiled: March 11, 1994Date of Patent: December 12, 1995Assignee: The Board of Regents of the University of Texas SystemInventors: Jonathan Ophir, Ignacio Cespedes
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Patent number: 5293870Abstract: An improved ultrasonic pulse-echo method and apparatus that has particular application in making precision measurements of compressibility in any backscattering material, in particular organic tissue, is disclosed. The method employs a standard transducer or transducer containing device which is translated transaxially, thereby compressing or displacing a proximal region of a target body in small known increments. At each increment, a pulse is emitted and an echo sequence (A-line) is detected from regions within the target along the sonic travel path or beam of the transducer. Resulting time shifts in echo segments corresponding to features in the target, corrected for regions of varying sonic speed along the sonic path, provide relative and quantitative information concerning the strain caused by the compressions. The stress imparted by the transducer and containing device is also determined, corrected for depth along the sonic path.Type: GrantFiled: September 3, 1992Date of Patent: March 15, 1994Assignee: Board of Regents The University of Texas SystemInventors: Jonathan Ophir, Ignacio Cespedes, Hari Ponnekanti
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Patent number: 5178147Abstract: An improved ultrasonic pulse-echo method and apparatus that has particular application in making precision measurements of compressibility in any backscattering material, in particular organic tissue, is disclosed. The method employs a standard transducer or transducer containing device which is translated transaxially, thereby compressing or displacing a proximal region of a target body in small known increments. At each increment, a pulse is emitted and an echo sequence (A-line) is detected from regions within the target along the sonic travel path or beam of the transducer. Resulting time shifts in echo segments corresponding to features in the target, corrected for regions of varying sonic speed along the sonic path, provide relative and quantitative information concerning the strain caused by the compressions. The stress imparted by the transducer and containing device is also determined, corrected for depth along the sonic path.Type: GrantFiled: May 10, 1991Date of Patent: January 12, 1993Assignee: Board of Regents, The University of Texas SystemInventors: Jonathan Ophir, Ignacio Cespedes, Hari Ponnekanti