Patents by Inventor Cristiano Dalvi
Cristiano Dalvi 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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Publication number: 20140155712Abstract: The present disclosure relates to an interface for a noninvasive glucose sensor that comprises a front-end adapted to receive an input signals from optical detectors and provide corresponding digital signals. In one embodiment, the front-end comprises switched capacitor circuits that are capable of handling multiple streams signals from the optical detectors. In another embodiment, the front-end comprises transimpedance amplifiers that are capable of handling multiple streams of input signals. In this embodiment, the transimpedance amplifier may be configured based on its own characteristics, such as its impedance, the impedance of the photodiodes to which it is coupled, and the number of photodiodes to which it is coupled.Type: ApplicationFiled: January 13, 2014Publication date: June 5, 2014Applicant: CERCACOR LABORATORIES, INC.Inventors: Marcelo M. Lamego, Sean Merritt, Cristiano Dalvi, Hung Vo, Johannes Bruinsma, Jeroen Poeze, Ferdyan Lesmana, Massi Joe E. Kiani
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Publication number: 20140121482Abstract: The present disclosure relates to a sensor having a set of photodetectors that are arranged at various locations to enable the measurement of blood glucose. The photodetectors are arranged across multiple locations. For example, the detector may comprise multiple photodetector arrays that are arranged to have a sufficient difference in mean path length to allow for noise cancellation and noise reduction. Walls may be used in the detector to separate individual photodetectors and prevent mixing of detected optical radiation between the different locations on the measurement site. A window may also be employed to facilitate the passing of optical radiation at various wavelengths for measuring glucose in the tissue.Type: ApplicationFiled: October 25, 2013Publication date: May 1, 2014Applicant: CERCACOR LABORATORIES, INC.Inventors: Sean Merritt, Marcelo Lamego, Cristiano Dalvi, Hung Vo, Johannes Bruinsma, Jeroen Poeze, Ferdyan Lesmana, Massi Joe E. Kiani
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Publication number: 20140114199Abstract: A magnetic-flap optical sensor has an emitter activated so as to transmit light into a fingertip inserted between an emitter pad and a detector pad. The sensor has a detector responsive to the transmitted light after attenuation by pulsatile blood flow within fingertip so as to generate a detector signal. Flaps extend from the emitter pad and along the sides of a detector shell housing the detector pad. Flap magnets are disposed on the flap ends and shell magnets are disposed on the detector shell sides. A spring urges the emitter shell and detector shell together, so as to squeeze the fingertip between its fingernail and its finger pad. The flap magnets have opposite north and south orientations from the shell magnets, urging the flaps to the detector shell sides and squeezing the fingertip sides. These spring and magnet squeezing forces occlude the fingertip blood flow and accentuate a detector signal responsive to an active pulsing of the fingertip.Type: ApplicationFiled: October 17, 2013Publication date: April 24, 2014Applicant: Cercacor Laboratories, Inc.Inventors: Marcelo M. Lamego, Hung Vo, Cristiano Dalvi, Sean Merritt
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Patent number: 8688183Abstract: Embodiments of the present disclosure include an emitter driver configured to be capable of addressing substantially 2N nodes with N cable conductors configured to carry activation instructions from a processor. In an embodiment, an address controller outputs an activation instruction to a latch decoder configured to supply switch controls to activate particular LEDs of a light source.Type: GrantFiled: September 2, 2010Date of Patent: April 1, 2014Assignee: Ceracor Laboratories, Inc.Inventors: Johannes Bruinsma, Cristiano Dalvi, Marcelo Lamego
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Publication number: 20140066783Abstract: A noninvasive physiological sensor for measuring one or more physiological parameters of a medical patient can include a bump interposed between a light source and a photodetector. The bump can be placed in contact with body tissue of a patient and thereby reduce a thickness of the body tissue. As a result, an optical pathlength between the light source and the photodetector can be reduced. In addition, the sensor can include a heat sink that can direct heat away from the light source. Moreover, the sensor can include shielding in the optical path between the light source and the photodetector. The shielding can reduce noise received by the photodetector.Type: ApplicationFiled: November 1, 2013Publication date: March 6, 2014Inventors: Massi Joe E. Kiani, Marcelo Lamego, Sean Merritt, Cristiano Dalvi, Hung Vo, Johannes Bruinsma, Jeroen Poeze, Ferydan Lesmana, Greg Olsen
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Patent number: 8630691Abstract: The present disclosure relates to an interface for a noninvasive glucose sensor that comprises a front-end adapted to receive an input signals from optical detectors and provide corresponding digital signals. In one embodiment, the front-end comprises switched capacitor circuits that are capable of handling multiple streams signals from the optical detectors. In another embodiment, the front-end comprises transimpedance amplifiers that are capable of handling multiple streams of input signals. In this embodiment, the transimpedance amplifier may be configured based on its own characteristics, such as its impedance, the impedance of the photodiodes to which it is coupled, and the number of photodiodes to which it is coupled.Type: GrantFiled: August 3, 2009Date of Patent: January 14, 2014Assignee: Cercacor Laboratories, Inc.Inventors: Marcelo Lamego, Sean Merritt, Cristiano Dalvi, Hung Vo, Johannes Bruinsma, Jeroen Poeze, Ferdyan Lesmana, Massi Joe E. Kiani
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Publication number: 20130344708Abstract: A magnetic connector has a receptacle and a plug. The receptacle has an electromagnet comprising an inner core, an outer core, a coil disposed around the inner core and an air gap defined by the edges of the inner and outer cores. The plug has a plug core and an anchor defined by the plug core edge. The anchor is configured to insert into the air gap as a receptacle socket electrically connects with plug pins. The coil is energized and de-energized so as to assist in the insertion or removal of the anchor from within the air gap and the corresponding connection and disconnection of the socket and pins.Type: ApplicationFiled: March 4, 2013Publication date: December 26, 2013Inventors: Massi Jeo E. Kiani, Marcelo M. Lamego, Cristiano Dalvi, Hung The Vo
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Publication number: 20130344707Abstract: A magnetic connector has a plug core disposed around a plug contact set and a receptacle core disposed around a receptacle contact set. The plug core defines a generally elongated circular plug core edge. The receptacle core defines a generally elongated concentric-circular receptacle core edge. The receptacle core edge defines an air gap and the plug core defines an anchor configured to insert into the air gap. A coil is disposed around the receptacle core, and the coil, the plug core and the air gap define a magnetic circuit. The coil is electrically energized so as to form a magnetic field within an air gap, lock the anchor within the air gap and lock the plug contact set to the receptacle contact set accordingly.Type: ApplicationFiled: March 4, 2013Publication date: December 26, 2013Inventors: Massi Joe E. Kiani, Marcelo M. Lamego, Cristiano Dalvi, Hung The Vo
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Publication number: 20130317370Abstract: A noninvasive physiological sensor for measuring one or more physiological parameters of a medical patient can include a bump interposed between a light source and a photodetector. The bump can be placed in contact with body tissue of a patient and thereby reduce a thickness of the body tissue. As a result, an optical pathlength between the light source and the photodetector can be reduced. In addition, the sensor can include a heat sink that can direct heat away from the light source. Moreover, the sensor can include shielding in the optical path between the light source and the photodetector. The shielding can reduce noise received by the photodetector.Type: ApplicationFiled: May 6, 2013Publication date: November 28, 2013Applicant: CERCACOR LABORATORIES, INC.Inventors: Cristiano Dalvi, Marcelo Lamego, Sean Merritt, Hung Vo, Johannes Bruinsma, Jeroen Poeze, Ferydan Lesmana, Greg Olsen, Massi Joe E. Kiani
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Patent number: 8577431Abstract: A noninvasive physiological sensor for measuring one or more physiological parameters of a medical patient can include a bump interposed between a light source and a photodetector. The bump can be placed in contact with body tissue of a patient and thereby reduce a thickness of the body tissue. As a result, an optical pathlength between the light source and the photodetector can be reduced. In addition, the sensor can include a heat sink that can direct heat away from the light source. Moreover, the sensor can include shielding in the optical path between the light source and the photodetector. The shielding can reduce noise received by the photodetector.Type: GrantFiled: July 2, 2009Date of Patent: November 5, 2013Assignee: Cercacor Laboratories, Inc.Inventors: Marcelo Lamego, Sean Merritt, Cristiano Dalvi, Hung Vo, Johannes Bruinsma, Jeroen Poeze, Ferdyan Lesmana, Greg Olsen, Massi Joe E. Kiani
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Patent number: 8570503Abstract: A noninvasive physiological sensor for measuring one or more physiological parameters of a medical patient can include a heat sink that can direct heat away from the light source.Type: GrantFiled: June 15, 2012Date of Patent: October 29, 2013Assignee: Cercacor Laboratories, Inc.Inventors: Hung Vo, Marcelo Lamego, Sean Merritt, Cristiano Dalvi, Johannes Bruinsma, Jeroen Poeze, Ferdyan Lesmana, Greg Olsen, Massi Joe E. Kiani
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Patent number: 8515509Abstract: The present disclosure relates to an emitter that is suitable for a noninvasive blood constituent sensor. The emitter is configured as a point optical source that comprises a plurality of LEDs that emit a sequence of pulses of optical radiation across a spectrum of wavelengths. In some embodiments, the plurality of sets of optical sources may each comprise at least one top-emitting LED and at least one super luminescent LED. In some embodiments, the emitter comprises optical sources that transmit optical radiation in the infrared or near-infrared wavelengths suitable for detecting glucose. In order to achieve the desired SNR for detecting analytes like glucose, the emitter may be driven using a progression from low power to higher power. In addition, the emitter may have its duty cycle modified to achieve a desired SNR.Type: GrantFiled: August 3, 2009Date of Patent: August 20, 2013Assignee: Cercacor Laboratories, Inc.Inventors: Johannes Bruinsma, Marcelo Lamego, Sean Merritt, Cristiano Dalvi, Hung Vo, Jeroen Poeze, Ferdyan Lesmana, Massi Joe E. Kiani
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Patent number: 8437825Abstract: A noninvasive physiological sensor for measuring one or more physiological parameters of a medical patient can include a bump interposed between a light source and a photodetector. The bump can be placed in contact with body tissue of a patient and thereby reduce a thickness of the body tissue. As a result, an optical pathlength between the light source and the photodetector can be reduced. In addition, the sensor can include a heat sink that can direct heat away from the light source. Moreover, the sensor can include shielding in the optical path between the light source and the photodetector. The shielding can reduce noise received by the photodetector.Type: GrantFiled: July 2, 2009Date of Patent: May 7, 2013Assignee: Cercacor Laboratories, Inc.Inventors: Cristiano Dalvi, Marcelo Lamego, Sean Merritt, Hung Vo, Johannes Bruinsma, Jeroen Poeze, Ferdyan Lesmana, Greg Olsen, Massi Joe E. Kiani
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Patent number: 8428967Abstract: A spot check credit system advantageously includes various embodiments for obtaining authorization or payment for each measurement, groups of measurements, times of measurement or the like. In an embodiment, the system utilizes a server that communicates web pages over a computer network. In an embodiment, the system utilizes a digital communication device such as a photocommunicative key.Type: GrantFiled: May 18, 2011Date of Patent: April 23, 2013Assignee: Cercacor Laboratories, Inc.Inventors: Gregory A. Olsen, Marcelo Lamego, Cristiano Dalvi, Johannes Bruinsma, Jeroen Poeze, Massi Joe E. Kiani
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Patent number: 8388353Abstract: A magnetic connector has a receptacle and a plug. The receptacle has an electromagnet comprising an inner core, an outer core, a coil disposed around the inner core and an air gap defined by the edges of the inner and outer cores. The plug has a plug core and an anchor defined by the plug core edge. The anchor is configured to insert into the air gap as a receptacle socket electrically connects with plug pins. The coil is energized and de-energized so as to assist in the insertion or removal of the anchor from within the air gap and the corresponding connection and disconnection of the socket and pins.Type: GrantFiled: March 10, 2010Date of Patent: March 5, 2013Assignee: Cercacor Laboratories, Inc.Inventors: Massi Joe E. Kiani, Marcelo M. Lamego, Cristiano Dalvi, Hung The Vo
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Publication number: 20130046204Abstract: A modulated physiological sensor is a noninvasive device responsive to a physiological reaction of a living being to an internal or external perturbation that propagates to a skin surface area. The modulated physiological sensor has a detector configured to generate a signal responsive to the physiological reaction. A modulator varies the coupling of the detector to the skin so as to at least intermittently maximize the detector signal. A monitor controls the modulator and receives an effectively amplified detector signal, which is processed to calculate a physiological parameter indicative of the physiological reaction.Type: ApplicationFiled: August 13, 2012Publication date: February 21, 2013Applicant: CERCACOR LABORATORIES, INC.Inventors: Marcelo Lamego, Cristiano Dalvi, Hung Vo
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Publication number: 20130023775Abstract: A magnetic reusable sensor is configured to attach to a tissue site so as to illuminate the tissue site with optical radiation and detect the optical radiation after attenuation by pulsatile blood flow within the tissue site. The sensor is configured to communicate with a monitor so as to calculate a physiological parameter corresponding to constituents of the pulsatile blood flow determined by the detected optical radiation. The sensor has a reusable emitter and a detector. A disposable wrap removably secures the emitter and the detector to a tissue site via magnetically enhanced receptacles fixedly mounted on the wrap and magnetically enhanced carriers housing the emitter and the detector.Type: ApplicationFiled: July 16, 2012Publication date: January 24, 2013Applicant: CERCACOR LABORATORIES, INC.Inventors: Marcelo M. Lamego, Hung Vo, Greg Olsen, Cristiano Dalvi, Sean Merrit
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Publication number: 20120330112Abstract: A patient monitoring system includes an inflatable cuff, a gas reservoir containing a compressed gas, and a sensor. When the inflatable cuff is coupled to a wearer, the gas reservoir supplies gas to the inflatable cuff to inflate the inflatable cuff via gas pathways. As the inflatable cuff inflates, a patient monitor can receive blood pressure data from the sensor and use the blood pressure data to determine the blood pressure of the wearer. The patient monitor can also receive blood pressure data during deflation of the inflatable cuff to determine the blood pressure of the wearer.Type: ApplicationFiled: June 19, 2012Publication date: December 27, 2012Applicant: CERCACOR LABORATORIES, INC.Inventors: Marcelo Lamego, Massi Joe E. Kiani, Ken Lam, Cristiano Dalvi, Hung Vo
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Publication number: 20120253150Abstract: The present disclosure relates to a sensor having a set of photodetectors that are arranged at various locations to enable the measurement of blood glucose. The photodetectors are arranged across multiple locations. For example, the detector may comprise multiple photodetector arrays that are arranged to have a sufficient difference in mean path length to allow for noise cancellation and noise reduction. Walls may be used in the detector to separate individual photodetectors and prevent mixing of detected optical radiation between the different locations on the measurement site. A window may also be employed to facilitate the passing of optical radiation at various wavelengths for measuring glucose in the tissue.Type: ApplicationFiled: June 15, 2012Publication date: October 4, 2012Applicant: CERCACOR LABORATORIES, INC.Inventors: Sean Merritt, Marcelo Lamego, Cristiano Dalvi, Hung Vo, Johannes Bruinsma, Jeroen Poeze, Ferdyan Lesmana, Massi Joe E. Kiani
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Publication number: 20120226117Abstract: The present disclosure includes a handheld processing device including medical applications for minimally and noninvasive glucose measurements. In an embodiment, the device creates a patient specific calibration using a measurement protocol of minimally invasive measurements and noninvasive measurements, eventually creating a patient specific noninvasive glucometer. Additionally, embodiments of the present disclosure provide for the processing device to execute medical applications and non-medical applications.Type: ApplicationFiled: November 30, 2011Publication date: September 6, 2012Inventors: Marcelo M. Lamego, Massi Joe E. Kiani, Jeroen Poeze, Cristiano Dalvi, Sean Merritt, Hung Vo, Gregory A. Olsen, Ferdyan Lesmana