Patents by Inventor Christopher Petersen
Christopher Petersen 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: 10780597Abstract: A fingertip shaver has a generally cylindrical shape and requires no extension or moving parts. The blade or multiple blades of the shaver are provided in a cartridge mounted within in an opening or recess formed in a flattened or truncated portion of the cylinder.Type: GrantFiled: October 25, 2018Date of Patent: September 22, 2020Inventor: Christopher Petersen
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Publication number: 20200288950Abstract: An imaging system for use in a patient is provided. The system includes an imaging probe, a rotation assembly, and a retraction assembly. The imaging probe collects image data from a patient site and includes an elongate shaft with a proximal end and a distal portion, with a lumen extending therebetween. A rotatable optical core is positioned within the elongate shaft lumen and an optical assembly is positioned in the elongate shaft distal portion. The optical assembly directs light to tissue at the patient site and collects reflected light from the tissue. The rotation assembly connects to the imaging probe and rotates the optical assembly. The retraction assembly connects to the imaging probe and retracts the optical assembly and the elongate shaft in unison.Type: ApplicationFiled: November 28, 2018Publication date: September 17, 2020Inventors: Christopher Petroff, Michael Atlas, Christopher Petersen, Christopher Battles, Jiyuan Yin, Nareak Douk, David W. Kolstad, Giovanni Ughi, Lindsy Peterson, J. Christopher Flaherty, R. Maxwell Flaherty
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Publication number: 20200130210Abstract: A fingertip shaver has a generally cylindrical shape and requires no extension or moving parts. The blade or multiple blades of the shaver are provided in a cartridge mounted within in an opening or recess formed in a flattened or truncated portion of the cylinder.Type: ApplicationFiled: October 25, 2018Publication date: April 30, 2020Inventor: Christopher Petersen
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Patent number: 10631718Abstract: An imaging system is provided comprising an imaging probe and at least one delivery device. The imaging probe comprises an elongate shaft, a rotatable optical core and an optical assembly. The elongate shaft comprises a proximal end, a distal portion, and a lumen extending between the proximal end and the distal portion. The rotatable optical core is positioned within the lumen of the elongate shaft and comprises a proximal end and a distal end. The rotatable optical core is configured to optically and mechanically connect with an interface unit. The optical assembly is positioned in the elongate shaft distal portion and proximate the rotatable optical core distal end. The optical assembly is configured to direct light to tissue and collect reflected light from the tissue. The imaging probe is constructed and arranged to collect image data from a patient site. The delivery device is constructed to engage the imaging probe.Type: GrantFiled: August 30, 2016Date of Patent: April 28, 2020Assignee: Gentuity, LLCInventors: Christopher Petroff, Christopher Petersen, David W. Kolstad
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Publication number: 20190274528Abstract: An imaging system is provided comprising an imaging probe and at least one delivery device. The imaging probe comprises an elongate shaft, a rotatable optical core and an optical assembly. The elongate shaft comprises a proximal end, a distal portion, and a lumen extending between the proximal end and the distal portion. The rotatable optical core is positioned within the lumen of the elongate shaft and comprises a proximal end and a distal end. The rotatable optical core is configured to optically and mechanically connect with an interface unit. The optical assembly is positioned in the elongate shaft distal portion and proximate the rotatable optical core distal end. The optical assembly is configured to direct light to tissue and collect reflected light from the tissue. The imaging probe is constructed and arranged to collect image data from a patient site. The delivery device is constructed to engage the imaging probe.Type: ApplicationFiled: August 30, 2016Publication date: September 12, 2019Inventors: Christopher PETROFF, Christopher PETERSEN, David W. KOLSTAD
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Publication number: 20190144825Abstract: This disclosure relates to compositions and methods of reversing senescence in T cells by interrupting vasoactive intestinal peptide (VIP) signaling and/or inhibiting phosphatidylinositol-3-kinase (PI3 kinase) inhibitor signaling and uses in managing cancer and chronic viral infections. In certain embodiments, the disclosure contemplates methods of reversing T cell senescence by mixing T cell in vitro with an agent that prevents VIP from interacting with VIP receptors and/or a PI3 Kinase inhibitor. In certain embodiments, the disclosure contemplates the expansion of senescent T cells by mixing with a PI3 kinase inhibitor, an agent that block VIP and VIP receptor signaling, a VIP degrading enzyme, and combinations thereof.Type: ApplicationFiled: April 5, 2017Publication date: May 16, 2019Inventors: Edmund Waller, Anna Morris, Christopher Petersen, Jian-Ming Li, Reema Panjwani, Jingxia Li
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Publication number: 20180125372Abstract: An imaging system for a patient comprises an imaging probe. The imaging probe comprises: an elongate shaft for insertion into the patient and comprising a proximal end, a distal portion, and a lumen extending between the proximal end and the distal portion; a rotatable optical core comprising a proximal end and a distal end, the rotatable optical core configured to optically and mechanically connect with an interface unit; a probe connector positioned on the elongate shaft proximal end and surrounding at least a portion of the rotatable optical core and an optical assembly positioned in the elongate shaft distal portion and proximate the rotatable optical core distal end, the optical assembly configured to direct light to tissue and collect reflected light from the tissue. A shear-thinning fluid can be provided between the elongate shaft and the rotatable optical core, such as to reduce undesired rotational variations of the rotatable optical core.Type: ApplicationFiled: April 15, 2016Publication date: May 10, 2018Inventors: Christopher Petroff, Michael Atlas, David Kolstad, Christopher Petersen, Nareak Douk, J. Christopher Flaherty
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Patent number: 9864140Abstract: In part, the invention relates to optical caps having at least one lensed surface configured to redirect and focus light outside of the cap. The cap is placed over an optical fiber. Optical radiation travels through the fiber and interacts with the optical surface or optical surfaces of the cap, resulting in a beam that is either focused at a distance outside of the cap or substantially collimated. The optical elements such as the elongate caps described herein can be used with various data collection modalities such optical coherence tomography. In part, the invention relates to a lens assembly that includes a micro-lens; a beam director in optical communication with the micro-lens; and a substantially transparent film or cover. The substantially transparent film is capable of bi-directionally transmitting light, and generating a controlled amount of backscatter. The film can surround a portion of the beam director.Type: GrantFiled: June 30, 2016Date of Patent: January 9, 2018Assignee: LIGHTLAB IMAGING, INC.Inventors: Desmond Adler, Stephen McCartin, Christopher Petersen
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Patent number: 9526424Abstract: In one aspect, the invention relates to a computer-implemented method of triggering optical coherence tomography data collection. The method includes collecting optical coherence tomography data with respect to a vessel using an optical coherence tomography probe disposed in the vessel; determining a clearing radius and a quality value for each frame of optical coherence tomography data collected for the vessel using a computer; determining if a blood clearing state has occurred using at least one clearing radius and at least one quality value; and generating a trigger signal in response to the blood clearing state.Type: GrantFiled: February 28, 2013Date of Patent: December 27, 2016Assignee: LIGHTLAB IMAGING, INC.Inventors: Neil Judell, Robert Steinbrecher, Joel Friedman, Christopher Petersen
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Publication number: 20160313507Abstract: In part, the invention relates to optical caps having at least one lensed surface configured to redirect and focus light outside of the cap. The cap is placed over an optical fiber. Optical radiation travels through the fiber and interacts with the optical surface or optical surfaces of the cap, resulting in a beam that is either focused at a distance outside of the cap or substantially collimated. The optical elements such as the elongate caps described herein can be used with various data collection modalities such optical coherence tomography. In part, the invention relates to a lens assembly that includes a micro-lens; a beam director in optical communication with the micro-lens; and a substantially transparent film or cover. The substantially transparent film is capable of bi-directionally transmitting light, and generating a controlled amount of backscatter. The film can surround a portion of the beam director.Type: ApplicationFiled: June 30, 2016Publication date: October 27, 2016Applicant: LightLab Imaging, Inc.Inventors: Desmond Adler, Stephen McCartin, Christopher Petersen
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Patent number: 9404731Abstract: In part, the invention relates to optical caps having at least one lensed surface configured to redirect and focus light outside of the cap. The cap is placed over an optical fiber. Optical radiation travels through the fiber and interacts with the optical surface or optical surfaces of the cap, resulting in a beam that is either focused at a distance outside of the cap or substantially collimated. The optical elements such as the elongate caps described herein can be used with various data collection modalities such optical coherence tomography. In part, the invention relates to a lens assembly that includes a micro-lens; a beam director in optical communication with the micro-lens; and a substantially transparent film or cover. The substantially transparent film is capable of bi-directionally transmitting light, and generating a controlled amount of backscatter. The film can surround a portion of the beam director.Type: GrantFiled: June 19, 2015Date of Patent: August 2, 2016Assignee: LightLab Imaging, Inc.Inventors: Desmond Adler, Stephen McCartin, Christopher Petersen
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Publication number: 20160132876Abstract: Redeeming closed loop payment instruments in wallet account transactions comprises a payment system server configured to associate financial accounts with a payment account of a user, comprising at least one closed loop account. The server receives, from a card network, a first payment authorization request originating from a merchant, comprising the payment account identifier and a request to fund a transaction. The server communicates, to a closed loop account issuer computing system, a redemption request to redeem funds from the closed loop account. The server receives a redemption of funds from the closed loop account. The server deducts the redeemed funds redeemed from a total amount of funds requested in the first payment authorization request. Upon receiving the funds, the server communicates to the merchant computing system a second authorization for the total amount of funds requested in the first authorization request based on the redemption of funds.Type: ApplicationFiled: February 11, 2014Publication date: May 12, 2016Applicant: GOOGLE INC.Inventors: Christopher Petersen, Tim Kuchlein, Peter Hazlehurst, Harry Lee Butler, IV
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Publication number: 20160018211Abstract: In part, the invention relates to optical caps having at least one lensed surface configured to redirect and focus light outside of the cap. The cap is placed over an optical fiber. Optical radiation travels through the fiber and interacts with the optical surface or optical surfaces of the cap, resulting in a beam that is either focused at a distance outside of the cap or substantially collimated. The optical elements such as the elongate caps described herein can be used with various data collection modalities such optical coherence tomography. In part, the invention relates to a lens assembly that includes a micro-lens; a beam director in optical communication with the micro-lens; and a substantially transparent film or cover. The substantially transparent film is capable of bi-directionally transmitting light, and generating a controlled amount of backscatter. The film can surround a portion of the beam director.Type: ApplicationFiled: June 19, 2015Publication date: January 21, 2016Applicant: LIGHTLAB IMAGING, INC.Inventors: Desmond Adler, Stephen McCartin, Christopher Petersen
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Patent number: 9091524Abstract: In part, the invention relates to optical caps having at least one lensed surface configured to redirect and focus light outside of the cap. The cap is placed over an optical fiber. Optical radiation travels through the fiber and interacts with the optical surface or optical surfaces of the cap, resulting in a beam that is either focused at a distance outside of the cap or substantially collimated. The optical elements such as the elongate caps described herein can be used with various data collection modalities such optical coherence tomography. In part, the invention relates to a lens assembly that includes a micro-lens; a beam director in optical communication with the micro-lens; and a substantially transparent film or cover. The substantially transparent film is capable of bi-directionally transmitting light, and generating a controlled amount of backscatter. The film can surround a portion of the beam director.Type: GrantFiled: October 11, 2013Date of Patent: July 28, 2015Assignee: LIGHTLAB IMAGING, INC.Inventors: Desmond Adler, Stephen McCartin, Christopher Petersen
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Patent number: 9007696Abstract: In part, the invention relates to a lens assembly. The lens assembly includes a micro-lens; a beam director in optical communication with the micro-lens; and a substantially transparent film. The substantially transparent film is capable of bi-directionally transmitting light, and generating a controlled amount of backscatter. In addition, the film surrounds a portion of the beam director.Type: GrantFiled: September 14, 2012Date of Patent: April 14, 2015Assignee: Lightlab Imaging, Inc.Inventors: Christopher Petersen, Stephen M. McCartin, Joseph M. Schmitt, Joel M. Friedman
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Publication number: 20140309536Abstract: In part, the invention relates to a catheter suitable for flushing a vessel. The catheter can include separated lumens and components that improve image data collection. In one embodiment, the catheter includes a catheter wall; a distal portion defining a distal lumen (62), the distal lumen having a first end terminating at the distal end of the catheter and a second end (30) terminating at an exit port in the catheter wall; a proximal portion defining proximal lumen (42), the proximal lumen having a first end terminating at the proximal end of the catheter and a second end terminating at a vent port (34) in the catheter wall; and a valve (50,54) positioned adjacent the vent port, the valve permitting fluid to exit the proximal lumen, but preventing particulate matter from the environment from entering the proximal lumen. In one embodiment, the valve comprises a piston (50) and spring (54) located in the proximal lumen (42).Type: ApplicationFiled: June 25, 2012Publication date: October 16, 2014Inventors: Nareak Douk, Christopher Brushett, Stephen M. McCartin, Hirofumi Mizoguchi, Christopher Petersen, Christopher Petroff
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Publication number: 20140249407Abstract: In part, the invention relates to optical caps having at least one lensed surface configured to redirect and focus light outside of the cap. The cap is placed over an optical fiber. Optical radiation travels through the fiber and interacts with the optical surface or optical surfaces of the cap, resulting in a beam that is either focused at a distance outside of the cap or substantially collimated. The optical elements such as the elongate caps described herein can be used with various data collection modalities such optical coherence tomography. In part, the invention relates to a lens assembly that includes a micro-lens; a beam director in optical communication with the micro-lens; and a substantially transparent film or cover. The substantially transparent film is capable of bi-directionally transmitting light, and generating a controlled amount of backscatter. The film can surround a portion of the beam director.Type: ApplicationFiled: October 11, 2013Publication date: September 4, 2014Applicant: LIGHTLAB IMAGING, INC.Inventors: Desmond Adler, Stephen McCartin, Christopher Petersen
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Patent number: 8753281Abstract: In one aspect, the invention relates to a probe. The probe includes a sheath, a flexible, bi-directionally rotatable, optical subsystem positioned within the sheath, the optical subsystem comprising a transmission fiber, the optical subsystem capable of transmitting and collecting light of a predetermined range of wavelengths along a first beam having a predetermined beam size. The probe also includes an ultrasound subsystem, the ultrasound subsystem positioned within the sheath and adapted to propagate energy of a predetermined range of frequencies along a second beam having a second predetermined beam size, wherein a portion of the first and second beams overlap a region during a scan.Type: GrantFiled: September 14, 2012Date of Patent: June 17, 2014Assignee: Lightlab Imaging Inc.Inventors: Joseph M. Schmitt, Christopher Petersen, Toro Ohasi, Tetsuya Nakamatsu
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Publication number: 20130310698Abstract: In one aspect, the invention relates to a computer-implemented method of triggering optical coherence tomography data collection. The method includes collecting optical coherence tomography data with respect to a vessel using an optical coherence tomography probe disposed in the vessel; determining a clearing radius and a quality value for each frame of optical coherence tomography data collected for the vessel using a computer; determining if a blood clearing state has occurred using at least one clearing radius and at least one quality value; and generating a trigger signal in response to the blood clearing state.Type: ApplicationFiled: February 28, 2013Publication date: November 21, 2013Applicant: LightLab Imaging, Inc.Inventors: Neil Judell, Robert Steinbrecher, Joel Friedman, Christopher Petersen
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Patent number: 8582934Abstract: In part, the invention relates to optical caps having at least one lensed surface configured to redirect and focus light outside of the cap. The cap is placed over an optical fiber. Optical radiation travels through the fiber and interacts with the optical surface or optical surfaces of the cap, resulting in a beam that is either focused at a distance outside of the cap or substantially collimated. The optical elements such as the elongate caps described herein can be used with various data collection modalities such optical coherence tomography. In part, the invention relates to a lens assembly that includes a micro-lens; a beam director in optical communication with the micro-lens; and a substantially transparent film or cover. The substantially transparent film is capable of bi-directionally transmitting light, and generating a controlled amount of backscatter. The film can surround a portion of the beam director.Type: GrantFiled: April 22, 2010Date of Patent: November 12, 2013Assignee: Lightlab Imaging, Inc.Inventors: Desmond Adler, Stephen McCartin, Christopher Petersen, Joseph Schmitt