Patents by Inventor Samantha Dayawansa
Samantha Dayawansa 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: 11969565Abstract: The disclosure provides a system and method for a programmable medical wire that can be preprogrammed, and controlled and reshaped upon command. The system can include a power supply, a controller, and a multilayered wire assembly. The wire assembly includes a core conductor, actuator conductors coupled to the core conductor, selective conductors formed adjacent the core conductor and the actuator conductors, and a protective biocompatible shield around the layers. The selective conductors can be energized to activate the actuator conductors and cause the actuator conductors to bend or twist in a preprogrammed manner. By selectively controlling the direction of movement of the actuator conductors, the wire assembly can be remotely guided through body passageways to the target. Auxiliary equipment such as sensors, micro cameras, detectors, cutters, and other equipment can also be coupled to the wire assembly, and controlled and communicated with through one or more of the selective conductors.Type: GrantFiled: February 7, 2019Date of Patent: April 30, 2024Assignees: BAYLOR UNIVERSITY, SCOTT & WHITE HEALTHCAREInventors: Keith E. Schubert, Linda Olafsen, Jeffrey Olafsen, Sunghwan Lee, Jason H. Huang, Samantha Dayawansa, Jin-Woo Choi
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Patent number: 11883114Abstract: The present disclosure provides a system and method for using widely available ultrasound imaging to overcome the limitations of imaging guidewires and other small objects that may be subwavelength in size relative to an ultrasound wavelength. The system and method can reduce the use of X-rays and exposure to the dangerous effects of radiation and avoids the expense of MRI technology. The subwavelength object, such as a guidewire, can be detected using several methods and associated systems described herein, including the object changing positions at a frequency that creates a brighter ultrasound image of the object as the object progresses across a scanned region of the ultrasound detector. In some embodiments, the movement of the small object causes a different speckle signature than the object itself would otherwise generate. Analysis of changes in speckle patterns due to progressive movement of an object can yield a detectable object.Type: GrantFiled: May 18, 2021Date of Patent: January 30, 2024Assignees: BAYLOR UNIVERSITY, SCOTT & WHITE HEALTHCAREInventors: Linda J. Olafsen, Keith E. Schubert, Jeffrey S. Olafsen, Samantha Dayawansa, Jason H. Huang
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Publication number: 20210353365Abstract: The present disclosure provides a system and method for using widely available ultrasound imaging to overcome the limitations of imaging guidewires and other small objects that may be subwavelength in size relative to an ultrasound wavelength. The system and method can reduce the use of X-rays and exposure to the dangerous effects of radiation and avoids the expense of MRI technology. The subwavelength object, such as a guidewire, can be detected using several methods and associated systems described herein, including the object changing positions at a frequency that creates a brighter ultrasound image of the object as the object progresses across a scanned region of the ultrasound detector. In some embodiments, the movement of the small object causes a different speckle signature than the object itself would otherwise generate. Analysis of changes in speckle patterns due to progressive movement of an object can yield a detectable object.Type: ApplicationFiled: May 18, 2021Publication date: November 18, 2021Applicants: Baylor University, Scott & White HealthcareInventors: Linda J. OLAFSEN, Keith E. SCHUBERT, Jeffrey S. OLAFSEN, Samantha DAYAWANSA, Jason H. HUANG
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Publication number: 20210290242Abstract: A programmable medical wire system includes a programmable wire assembly that includes: a core conductor; at least one actuator conductor electrically coupled to the core conductor, the actuator conductor being programmed to move toward a predetermined shape based on actuation; at least one selective conductor electrically coupled to the actuator conductor and configured to be electrically energized to actuate the actuator conductor to move toward the predetermined shape; at least one emitter configured to produce electromagnetic radiation of a given wavelength coupled to the programmable wire assembly; and at least one detector configured to receive emissions of the emitter and communicate signals of the emission remotely from the emitter. One or more of the selective conductors can be energized to activate the actuator conductors and/or core conductor and cause the actuator conductors and/or core conductor to bend or twist in a preprogrammed manner and return to original shape when deenergized.Type: ApplicationFiled: June 9, 2021Publication date: September 23, 2021Applicants: Baylor University, Scott & White Healthcare, Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventors: Keith E. Schubert, Linda Olafsen, Jeffrey Olafsen, Sunghwan Lee, Jason H. Huang, Samantha Dayawansa, Jin-Woo Choi
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Publication number: 20190247629Abstract: The disclosure provides a system and method for a programmable medical wire that can be preprogrammed, and controlled and reshaped upon command. The system can include a power supply, a controller, and a multilayered wire assembly. The wire assembly includes a core conductor, actuator conductors coupled to the core conductor, selective conductors formed adjacent the core conductor and the actuator conductors, and a protective biocompatible shield around the layers. The selective conductors can be energized to activate the actuator conductors and cause the actuator conductors to bend or twist in a preprogrammed manner. By selectively controlling the direction of movement of the actuator conductors, the wire assembly can be remotely guided through body passageways to the target. Auxiliary equipment such as sensors, micro cameras, detectors, cutters, and other equipment can also be coupled to the wire assembly, and controlled and communicated with through one or more of the selective conductors.Type: ApplicationFiled: February 7, 2019Publication date: August 15, 2019Applicants: Baylor University, Scott & White HealthcareInventors: Keith E. SCHUBERT, Linda OLAFSEN, Jeffrey OLAFSEN, Sunghwan LEE, Jason H. HUANG, Samantha DAYAWANSA, Jin-Woo CHOI
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Publication number: 20180333070Abstract: This disclosure includes apparatuses for detecting and/or destroying abnormal tissue, such as cancer tissue, and related methods. Some apparatuses include a device having an elongated body extending between a proximal end and a distal end, one or more detectors coupled to the distal end, each having a magnet configured to produce a magnetic field, and a magnetometer spaced apart from the magnet and configured to capture data indicative of a magnetic flux density. In some apparatuses, the magnet of a detector is configured to produce a constant magnetic field. In some apparatuses, the distal end of the elongated body is configured to be inserted into a target site on a patient.Type: ApplicationFiled: November 18, 2016Publication date: November 22, 2018Inventors: Samantha DAYAWANSA, Jason HUANG, Ekokobe FONKEM
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Patent number: 10004438Abstract: A first embodiment of the implantable real-time oximeter of the present invention is attached around a blood vessel near the site of a likely stroke to monitor large and medium size cerebral arteries. Another embodiment of the implantable real-time oximeter can be passed within cerebral blood vessels to monitor the oxygenation status of the surrounding cerebral tissues. When used within cerebral blood vessels, the emitter and detector are coplanar and contained in a small area, for example, 50-120 ?m.Type: GrantFiled: March 14, 2013Date of Patent: June 26, 2018Assignee: University of RochesterInventors: Jason Haitao Huang, Samantha Dayawansa
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Patent number: 9993168Abstract: There is provided an implantable pressure monitor having a fluid sack in contact with a body part of a patient where the fluid sack is retained to the body part by a pressure monitor housing that may have various attachment means. The fluid sack is filled with a liquid such as silicone oil. The pressure monitor housing has an opening that provides access to a fistula with a fluid valve that terminates through the fluid sack. A fiber optic pressure sensor is in contact with the liquid in the fluid sack by way of the fistula and fluid valve. In some embodiments of the present invention, an electronics module is incorporated with the implantable pressure monitor to provide telemetry, power, and the like.Type: GrantFiled: November 25, 2013Date of Patent: June 12, 2018Assignee: University of RochesterInventors: Jason Haitao Huang, Samantha Dayawansa
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Patent number: 9682248Abstract: A deep brain magnetic stimulator is disclosed that is placed within a vessel of the body to provide targeted location specific application of a magnetic field within the brain. The deep brain magnetic stimulator has a stimulation coil affixed to an expandable device core where the device core has a lumen to allow the passage of blood. A source of electrical energy is provided as well as related control circuitry to govern the activation of the stimulation coil and also govern such parameters as magnetic field strength, duration, waveform, and the like.Type: GrantFiled: September 19, 2013Date of Patent: June 20, 2017Assignee: University of RochesterInventors: Jason Haitao Huang, Samantha Dayawansa
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Publication number: 20150289772Abstract: There is provided an implantable pressure monitor having a fluid sack in contact with a body part of a patient where the fluid sack is retained to the body part by a pressure monitor housing that may have various attachment means. The fluid sack is filled with a liquid such as silicone oil. The pressure monitor housing has an opening that provides access to a fistula with a fluid valve that terminates through the fluid sack. A fiber optic pressure sensor is in contact with the liquid in the fluid sack by way of the fistula and fluid valve. In some embodiments of the present invention, an electronics module is incorporated with the implantable pressure monitor to provide telemetry, power, and the like.Type: ApplicationFiled: November 25, 2013Publication date: October 15, 2015Applicant: The University of RochesterInventors: Jason Haitao Huang, Samantha Dayawansa
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Patent number: 9114246Abstract: A device circles the spinal segmental nerves like a ring and causes stimulation of the nerves. The present invention offers magnetic as well as electric stimulation properties in order to balance the two modes.Type: GrantFiled: March 15, 2013Date of Patent: August 25, 2015Assignee: University of RochesterInventors: Jason Huang, Samantha Dayawansa
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Publication number: 20150073240Abstract: A first embodiment of an oximetry probe is attached around a blood vessel near the site of a likely stroke. That will be useful to monitor large and medium size cerebral arteries. Another type of pulse oximeter can be passed within cerebral blood vessels to monitor the oxygenation status of the surrounding cerebral tissues. In that version, the emitter and detector are coplanar and contained in a small area, e.g., 50-12 ?m.Type: ApplicationFiled: March 14, 2013Publication date: March 12, 2015Applicant: University of RochesterInventors: Jason Haitao Huang, Samantha Dayawansa
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Publication number: 20140081072Abstract: A deep brain magnetic stimulator is disclosed that is placed within a vessel of the body to provide targeted location specific application of a magnetic field within the brain. The deep brain magnetic stimulator has a stimulation coil affixed to an expandable device core where the device core has a lumen to allow the passage of blood. A source of electrical energy is provided as well as related control circuitry to govern the activation of the stimulation coil and also govern such parameters as magnetic field strength, duration, waveform, and the like.Type: ApplicationFiled: September 19, 2013Publication date: March 20, 2014Applicant: University of RochesterInventors: Jason Haitao Huang, Samantha Dayawansa