Light Conducting Fiber Inserted Into A Body Patents (Class 600/478)
  • Patent number: 10285583
    Abstract: A scanning optical probe and method includes a cannula, optical fiber, lens, and an actuating mechanism for tilting the optical fiber back and forth within the cannula. An actuator in the probe handle is coupled to various flexing and guide components extending through the cannula and towards the distal end of the scanning optical probe. Reciprocating motion from the actuator is transmitted to the components thereby causing the optical fiber at the distal end of the scanning optical probe to aim across target surfaces. The light emitted from the optical fiber is processed to generate a scan of the target area.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: May 14, 2019
    Assignee: Novartis AG
    Inventors: Kambiz Parto, Edouard G. Schmidtlin, Barry L. Wheatley
  • Patent number: 10275908
    Abstract: According to one embodiment, a medical image diagnostic apparatus includes a storage memory, processing circuitry, and a display. The storage memory stores data of a plurality of FFR distribution maps constituting a time series regarding a coronary artery, and data of a plurality of morphological images corresponding to the time series. The processing circuitry converts the plurality of FFR distribution maps into a plurality of corresponding color maps, respectively. The display displays a plurality of superposed images obtained by superposing the plurality of color maps and the plurality of morphological images respectively corresponding in phase to the plurality of color maps. The display restricts display targets for the plurality of color maps based on the plurality of FFR distribution maps or the plurality of morphological images.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: April 30, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Hideaki Ishii, Satoshi Wakai, Kazumasa Arakita, Takuma Igarashi, Yasuko Fujisawa, Shigeo Kaminaga, Kenji Hirohata, Junichiro Ooga
  • Patent number: 10154779
    Abstract: An illuming device for use in medically illuminating tissue of interest within a patient generally includes a light diffusing optical fiber and an at least partially optically opaque sheath that is mounted over the fiber for selective, sliding movement along the length thereof. By sliding the sheath relative to the optical fiber after it has been inserted into a patient to illuminate a particular area of tissue, the length, size, and/or shape of the light that is exposed to the tissue can be selectively controlled. Such in situ variation of the properties of the exposed light permit use of a single instrument and a single procedure regardless of variation in the size and shape of the diseased tissue being medically treated.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: December 18, 2018
    Assignee: CORNING INCORPORATED
    Inventors: William Spencer Klubben, III, Jeffrey L Mooney, Peter Gerard Wigley
  • Patent number: 10111586
    Abstract: A forward-imaging optical coherence tomography probe is provided, comprising: a substantially cylindrical housing comprising: a longitudinal axis; an interior side; a distal end that is optically transparent; and a mirror located at the interior side, adjacent the distal end; an optical fiber located inside the cylindrical housing along the longitudinal axis; a wedge lens located inside the cylindrical housing, adjacent the distal end, the wedge lens configured to receive light from the fiber, and direct the light towards the mirror; and, at least one motor configured to both: rotate the fiber and the wedge lens about the longitudinal axis and inside the cylindrical housing; and, linearly displace the fiber and the wedge lens along the longitudinal axis and inside the cylindrical housing; the mirror configured to: receive light from the wedge lens and reflect the light out of the distal end as the wedge lens moves linearly and rotationally.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: October 30, 2018
    Assignee: SYNAPTIVE MEDICAL (Barbados) Inc.
    Inventors: Fangxin Li, Michael Frank Gunter Wood
  • Patent number: 10105058
    Abstract: An apparatus for performing an endoscopic procedure for detecting cancerous tissue includes a detection probe for detecting the cancerous tissue. The detection probe includes a first fiber for emitting an ultraviolet light beam having an orthogonal function applied thereto and a second fiber for receiving emissions from tissues responsive to the ultraviolet light beam emitted for the first fiber. An ultraviolet emission source generates the ultraviolet light beam. Orthogonal function circuitry applies the orthogonal function twist to the ultraviolet light beam. Detection circuitry detects fluorescence and orthogonal function within the emissions from the tissues received over the second fiber.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: October 23, 2018
    Assignee: NXGEN PARTNERS IP, LLC
    Inventors: Solyman Ashrafi, Roger Linquist, Nima Ashrafi
  • Patent number: 10092164
    Abstract: The present invention provides a surgical tracking system for assisting an operator to perform a laparoscopic surgery of a human body, said surgical tracking system comprising: a. at least one endoscope adapted to acquire real-time images of a surgical environment within said human body; b. a maneuvering subsystem adapted to control the spatial position of said endoscope during said laparoscopic surgery; and, c. a tracking subsystem in communication with said maneuvering subsystem, adapted to control the maneuvering system so as to direct and modify the spatial position of said endoscope to a region of interest.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: October 9, 2018
    Assignee: M.S.T. MEDICAL SURGERY TECHNOLOGIES LTD
    Inventors: Mordehai Sholev, Udi Pfeffer, Motti Frimer
  • Patent number: 9993311
    Abstract: A method and system are provided for visualizing a surgical path for a surgical tool. The method comprises a step of receiving anatomical information about a position of at least one anatomical structure in a region to undergo surgery, geometric information describing the surgical path and at least one safety margin defining a minimal distance between the surgical tool and the anatomical structure. The method further comprises defining a critical segment of the surgical path, in which critical segment a distance to the anatomical structure is smaller than the safety margin. Then a graphical representation of the surgical path is provided, wherein the critical segment is highlighted.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: June 12, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Johannes Cornelis Koudijs, Martin Bergtholdt, Heinrich Schulz, Hubert Cecile Francois Martens, Gerrit-jan Bloem, Johan Gerard Kleibeuker
  • Patent number: 9962558
    Abstract: Minimally invasive delivery with intercellular and/or intracellular localization of nano- and micro-particle solar cells within and among excitable biological cells to controllably regulate membrane polarization and enhance function of such cells. The cells include retinal and other excitable cells.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: May 8, 2018
    Inventor: Gholam A. Peyman
  • Patent number: 9943214
    Abstract: Borescopes and related methods. In some embodiments, a medical borescope system may comprise a medical borescope comprising a tube comprising a first tube end and a second tube end opposite from the first tube end; a light source positioned adjacent to the first tube end and configured to generate light at the first tube end; an image sensor positioned adjacent to the first tube end. The system may further comprise a data communication link coupled with the image sensor and a dongle comprising an image processor configured to receive image data from the image sensor that is removably coupleable with the medical borescope such that the dongle can be coupled with a plurality of distinct medical borescopes. The dongle may be configured to at least one of receive and detect borescope-specific parameter data from the medical borescope, wherein the borescope-specific parameter data comprises data unique to the medical borescope.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: April 17, 2018
    Assignee: Xenocor, Inc.
    Inventors: John Langell, Lane Brooks
  • Patent number: 9947133
    Abstract: The disclosure provides an approach for simulating scattering in a participating medium. In one embodiment, a rendering application receives an image and depth values for pixels in the image, and generates multiple copies of the image associated with respective numbers of scattering events. The rendering application further applies per-pixel weights to pixels of the copies of the image, with the per-pixel weight applied to each pixel representing a probability of a light ray associated with the pixel experiencing the number of scattering events associated with the copy of the image in which the pixel is located. In addition, the rendering application applies a respective blur to each of the weighted copies of the image based on the number of scattering events associated with the weighted copy, sums the blurred weighted image copies, and normalizes the sum to account for conservation of energy.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: April 17, 2018
    Assignee: Pixar
    Inventor: Tim Babb
  • Patent number: 9846300
    Abstract: A miniaturized microscope provides the combined capability for simultaneous or sequential fluorescence imaging at two different wavelengths and/or at two different object planes within a sample to which a cannula is attached. The microscope includes an illumination input connector for connecting one or more illumination sources, a connector for connecting the microscope to the cannula, a pair of optical image sensors for imaging the two different object planes and/or wavelengths and a pair of optical splitters: one for separating the illumination from light returning from the sample and the other for splitting the light returning from the sample into two images and providing the two images to their corresponding image sensor.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: December 19, 2017
    Assignee: OPTOMAK, INC.
    Inventors: Sead Doric, Harold Dehez
  • Patent number: 9820662
    Abstract: Catheter systems and methods for determining blood flow rates based on light reflection measurements. The catheter may include a lumen extending between a proximal end of the catheter and a distal end of the catheter. The catheter may include fluid infusion openings at the distal end region of the catheter that are configured to permit the indicator fluid to exit the catheter from the lumen. The catheter system may include an optical fiber having one or more sensors thereon for sensing light reflected by blood particles in a body vessel lumen. A blood flow rate may be determined based on the sensed light reflected by blood particles in the body vessel lumen.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: November 21, 2017
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Jan Weber, James M. Anderson, Aiden Flanagan, Eric M. Petersen, Steven R. Larsen
  • Patent number: 9795307
    Abstract: Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a medical device for measuring blood pressure. The medical device may include an elongated shaft having a proximal region and a distal region. An optical fiber may extend along the proximal region. The optical fiber may be secured to an inner surface of the shaft. An optical pressure sensor may be coupled to the optical fiber. The optical pressure sensor may be disposed along the distal region. A sealing member may be attached to the optical fiber and may have a surface engaged with the inner surface of the shaft.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: October 24, 2017
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Lloyd Radman, Anthony Suardini
  • Patent number: 9689759
    Abstract: A fiber-optic force sensor, comprising an FBG fiber that has a force sensor region, to which bracing means to eliminate or decouple laterally effective forces and bending moments are assigned in such a way that the force sensor has a predominantly single-axis response characteristic to detect merely the magnitude of a force acting axially in the fiber direction.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: June 27, 2017
    Assignee: VascoMed GmbH
    Inventors: Stephan Fandrey, Andreas Bitzer
  • Patent number: 9572492
    Abstract: A catheter device for crossing occlusions includes an elongate body, a central lumen extending within the elongate body from the proximal end to the distal end, a rotatable tip at the distal end of the elongate body, and an OCT imaging sensor. The rotatable tip is configured to rotate relative to the elongate body. The OCT imaging sensor includes an optical fiber coupled with the rotatable tip and configured to rotate therewith. A distal end of the elongate body includes one or more markers configured to occlude the OCT imaging sensor as it rotates. A fixed jog in the elongate body proximal to the distal end of the catheter positions the distal end of the catheter at an angle relative to the region of the catheter proximal to the fixed jog and is aligned with the one or more markers on the elongate body.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: February 21, 2017
    Assignee: Avinger, Inc.
    Inventors: John B. Simpson, Himanshu N. Patel, Michael Zung, Charles W. McNall, Priyanshu Gupta, Maegan K. Spencer, Christopher B. White, Dennis W. Jackson, John F. Black
  • Patent number: 9563942
    Abstract: Apparatus and method for rendering an image of a fibrous material. The method includes providing parametric fibrous material optical properties derived from actual material fiber samples via the apparatus; providing a parametric virtual light environment; providing a virtual fibrous material array; and rendering an image of the virtual fibrous material array according to the interaction of the parametric fibrous material properties and the parametric virtual light environment.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: February 7, 2017
    Assignee: NOXELL CORPORATION
    Inventors: Mathias Herrlein, Thomas Hirn, Knut Meinert, Hartmut Schmidt, Amo Zinke
  • Patent number: 9370392
    Abstract: A method of directing energy to tissue includes the initial steps of determining target tissue location and/or target tissue margins, positioning an ablation device for delivery of energy to target tissue, and positioning one or more heat-sensitive optical probes into a tissue region to be monitored. Each heat-sensitive optical probe is adapted to utilize spectral properties of light to access one or more optical fiber portions of the heat-sensitive optical probe in response to heat.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: June 21, 2016
    Assignee: Covidien LP
    Inventor: Alexey Sharonov
  • Patent number: 9345908
    Abstract: Techniques are generally described for a treatment balloon, and methods and systems effective to detect a position of a beam. The system may include a treatment balloon effective to receive the beam. The treatment balloon may include a shaft and a balloon portion with an open end in communication with the shaft. The balloon portion may be effective to be at least partially filled with a fluid. The treatment balloon may be effective to generate a light wave when the treatment beam is incident on the treatment balloon. A waveguide in the treatment balloon may be effective to receive the light wave. A light detector in optical communication with the waveguide may be effective to detect the light wave. A processor in communication with the light detector may be effective to detect the position of the beam.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: May 24, 2016
    Assignee: Empire Technology Development LLC
    Inventor: Cameron Cooke
  • Patent number: 9237852
    Abstract: A probe is shown. According to one implementation, the following is included at a tip of the probe, as the optical system. A first optical fiber system forms an irradiating light guiding path to guide irradiating light. A second optical fiber system forms a receiving light guiding path to guide measuring light. A condenser lens system is positioned opposed to the first optical fiber system and the second optical fiber system, and the irradiating light is irradiated thereon and the measuring light is condensed. An optical axis of the condenser lens system, a central axis of a light emitting end of the first optical fiber system, and a central axis of a light receiving end of the second optical fiber system are positioned so a straight line which passes through two axes does not pass through a remaining axis.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: January 19, 2016
    Assignee: Konica Minolta, Inc.
    Inventor: Shoichi Tao
  • Patent number: 9198934
    Abstract: Compositions comprising nanoparticles, such as silver or gold nanoparticles or carbon nanotubes (CNTs), and apoptotic agents are described. The nanoparticles can significantly enhance the cancer chemotherapeutic effects of the apoptotic agents. In particular, a highly increased anti-tumor activity has been demonstrated for the combination of etoposide and CNTs against HeLa cells compared to the administration of either etoposide alone or nanoparticles alone. Data provided by flow cytometry, Caspase 3 and other methods, suggest a strong interaction between the nanoparticles and the cellular structure, which can result in the improved effectiveness of chemotherapeutic agents. These findings provide potential new cancer therapies by carefully selecting the right combination of cytostatic drugs and nanostructural materials which synergistically provide significantly greater curative rates.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: December 1, 2015
    Assignee: BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS
    Inventors: Alexandru S. Biris, Meena Mahmood
  • Patent number: 9174345
    Abstract: A robot arm including a force sensing apparatus capable of accurately sensing of a force in the axial direction of the robot arm during operation thereof, without being affected by a motion of the robot arm. The robot arm includes: a body that is elastically deformable and has a pipe form extending in an axial direction; an instrument connected to an operational end of the body; a cable that is connected to a terminal end of the instrument and controls an operation of the instrument; and a force sensing apparatus that is attached to a surface of the body and senses a force acting upon the body, wherein the cable at the terminal end of the instrument is configured to move along a direction perpendicular to the axial direction of the body.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: November 3, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-do Cho, Yeon-ho Kim
  • Patent number: 9155472
    Abstract: A method for evaluating vascular endothelium function in a human subject comprises monitoring changes in intensity of NADH fluorescence signal emitted from skin tissue cells of an upper limb of said subject as a function of time, wherein said changes result from reactive hyperaemia caused by blocking and releasing blood flow in the same upper limb of said subject. A system for evaluating vascular endothelium function in a human subject comprises a means for illuminating a skin on an upper limb of said subject with exciting light, a means for measuring intensity of fluorescence signal emitted from the skin and recording changes of said intensity of the fluorescence signal over time; and a restriction means for blocking and releasing blood flow in the upper limb of said subject.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: October 13, 2015
    Assignee: Angionica SP. Z O.O.
    Inventors: Jerzy Gebicki, Andrzej Marcinek, Stefan Chlopicki
  • Patent number: 9107583
    Abstract: A probe includes a plurality of optical fibers that includes an irradiation fiber and a light-receiving fiber; and an optical member of which a base end face is arranged to abut on leading end faces of the optical fibers, and a leading end face is exposed to an outer side. The leading end face of the optical member is perpendicular to a longitudinal direction of the probe. Light emitted from the irradiation fiber passes through a path inclined with respect to a perpendicular line of the leading end face.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: August 18, 2015
    Assignee: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Takeshi Suga, Kenji Kamimura
  • Patent number: 9066726
    Abstract: Apparatus and methods for determining positioning of a energy delivery element include deploying a energy delivery element at a treatment site proximal to a vessel wall; using a multi-region pressure sensing apparatus to sense pressures applied in a plurality of directions about the energy delivery element; and determining an orientation of the energy delivery element based on the pressures measured in the plurality of directions about the energy delivery element.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: June 30, 2015
    Assignee: Medtronic Ardian Luxembourg S.a.r.l.
    Inventor: Nishant R. Srivastava
  • Patent number: 9052287
    Abstract: A light source is gated ON and OFF in response to a pulsed signal. Photo emissions from the light source are coupled to a material under test. Resonant fluorescent emissions from the material are coupled to a photodiode. Current from the photodiode is coupled into an amplifier system comprising a first and second amplifier stages. The first amplifier stage is gated to a low gain when the light source is turned ON and the gain is increased when the light source goes from ON to OFF. The second amplifier stage has digitally programmable offset and gain settings in response to control signals. The output of the second amplifier stage is digitized by an analog to digital converter. A controller generates the pulse control signal and the control signals.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: June 9, 2015
    Assignee: Authentix, Inc.
    Inventor: Kenneth E. Tinsley
  • Publication number: 20150148689
    Abstract: An optical fiber assembly includes optical fibers, an array member, an adhesive part, a cylindrical member and a fixing member. The fibers are inserted into the array member, and the array member is inserted into a cylindrical part of the cylindrical member. The adhesive part is disposed on one-end side of the array member. The fibers extend through the one end. The cylindrical part and the fixing member are fixed to each other in a state in which (i) the array member is sandwiched between a terminal part of the cylindrical member and the fixing member in an axial direction and (ii) the array member is positioned in the axial direction in relation to the cylindrical part. Thereby, the array member and the adhesive part are housed in a structure constituted of the cylindrical member and the fixing member.
    Type: Application
    Filed: June 21, 2013
    Publication date: May 28, 2015
    Inventors: Junichi Jono, Kikuo Iwasaka
  • Publication number: 20150148688
    Abstract: A neural probe array includes a probe body that is implanted into a subject, a fixture body to support a rear end of the probe body, a cladding extending in a lengthwise direction of the probe body in an upper part of the probe body, and an optical waveguide member installed on the cladding along the cladding, and the cladding is embedded in a recessed cavity formed in the upper part of the probe body. A method for manufacturing the neural probe array includes forming the cavity in an upper part of a first substrate, embedding the cladding in the cavity, forming the optical waveguide member on the cladding along the cladding, and forming the probe body by cutting the first substrate off.
    Type: Application
    Filed: June 24, 2014
    Publication date: May 28, 2015
    Inventors: Il-Joo CHO, Eui Sung YOON, Hyunjoo Jenny LEE, Yoo-jin SON
  • Publication number: 20150148690
    Abstract: A medical system provides navigation assistance to a surgeon so that the surgeon may navigate a flexible medical device through linked passages of an anatomical structure to a target in or adjacent to the anatomical structure. As the medical device moves through the linked passages, images are captured by an image capturing element at its distal end and pose and shape information for the medical device are received from sensors disposed in the medical device. A 4-D computer model of the anatomical structure is registered to the medical device using one or both of 4-D shape registration and virtual camera registration so that the captured image and a virtual image generated from the perspective of a virtual camera are registered to each other and displayed while providing an indication of a navigational path to the target.
    Type: Application
    Filed: November 3, 2014
    Publication date: May 28, 2015
    Inventors: Prashant Chopra, Caitlin Q. Donhowe, Vincent Duindam, Giuseppe Maria Prisco
  • Publication number: 20150141846
    Abstract: Biological tissue such as skeletal and cardiac muscle can be imaged by using an objective-based probe in the tissue and scanning at a sufficiently fast rate to mitigate motion artifacts due to physiological motion. According to one example embodiment, such a probe is part of a system that is capable of reverse-direction high-resolution imaging without needing to stain or otherwise introduce a foreign element used to generate or otherwise increase the sensed light. The probe can include a light generator for generating light pulses that are directed towards structures located within the thick tissue. The system can additionally include aspects that lessen adverse image-quality degradation. Further, the system can additionally be constructed as a hand-held device.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Inventors: Gabriel Nestor Sanchez, Scott L. Delp, Mark J. Schnitzer, Michael E. Llewellyn
  • Publication number: 20150141764
    Abstract: A distributed sensor and a method for identifying an internal anatomical landmark (R) includes inserting (502) a distributed sensing device (212) into a volume of a body and extending (504) a portion of a length of the distributed sensing device beyond an area of interest. Parameters are measured (506) using sensors (202) located along the length of the distributed sensing device (212), and a transition region is determined (510) based upon a parameter value difference between adjacent sensors. A location of an anatomical landmark is assigned (512) using the transition region.
    Type: Application
    Filed: May 28, 2013
    Publication date: May 21, 2015
    Inventors: Godefridus Antonius Harks, Martinus Bernardus Van Der Mark, Gert Wim 'T Hooft
  • Publication number: 20150141848
    Abstract: Implementations of the tissue illumination systems, devices, and methods disclosed herein take advantage of the translucent nature of tissue to reveal properties by light transmission, for example, tissue type, tissue transition locations, underlying structures, and the like, that are not easily distinguished by reflected light. Illuminating a back-side of a translucent tissue permits a user to distinguish between different types of tissue, tissue transition locations, and/or structures that are difficult or impossible to discern under overhead or front-side illumination. Implementations include a light source that is positionable behind a tissue or disposable within a body cavity or duct, for example, within a heart ventricle.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 21, 2015
    Inventors: Stanton J. Rowe, Emil Karapetian, Erin M. Spinner, Devin H. Marr, Glen T. Rabito
  • Publication number: 20150141847
    Abstract: Systems and methods for hyperspectral analysis of cardiac tissue are provided. In some embodiments, a method for visualizing ablation lesions includes illuminating at one or more illumination wavelengths a surface of tissue having an ablation lesion; collecting a spectral data set comprising spectral images of the illuminated tissue acquired at multiple spectral bands each at one or more acquisition wavelengths; distinguishing between the ablation lesion and an unablated tissue based on one or more spectral differences between the ablation lesion and unablated tissue; and creating a composite image of the tissue showing the ablation lesion and the unablated tissue.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 21, 2015
    Inventor: Narine Sarvazyan
  • Publication number: 20150141843
    Abstract: The disclosure includes an apparatus for insertion into a body lumen. The apparatus can comprise an optical fiber pressure sensor. The optical fiber pressure sensor can comprise an optical fiber configured to transmit an optical sensing signal. A temperature compensated Fiber Bragg Grating (FBG) interferometer can be in optical communication with the optical fiber. The FBG interferometer can be configured to receive a pressure and modulate, in response to the received pressure, the optical sensing signal. A compliant member such as a sensor membrane can be in physical communication with the FBG interferometer. The membrane configured to transmit the received pressure to the FBG interferometer.
    Type: Application
    Filed: May 23, 2013
    Publication date: May 21, 2015
    Inventors: Michael J. Eberle, Diana Margaret Tasker, Howard Neil Rourke, David J. Spamer
  • Publication number: 20150141845
    Abstract: Systems for visualizing cardiac tissue during an ablation procedure are provided. In general, the systems include an imaging module configured to measure absorbance data at first and second wavelengths wherein the ratio of these absorbance values identifies the nature of the tissue (e.g., lesion, de novo tissue, etc.). The imaging module can also include a video system having at least two chips with corresponding bandpass filters centered at the first and second target wavelengths. The system can also include a processor and/or video monitor for combining the images produced by the various chips, determining treated and non-treated tissue based on the ratio of absorbance values at the target wavelengths, and displaying images of the treatment area. Methods of visualizing cardiac treatment areas during ablation procedures are also provided herein.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 21, 2015
    Inventors: Gerald Melsky, Stephen Sagon, Edward L. Sinofsky, Norman E. Farr
  • Publication number: 20150141844
    Abstract: An optogenetic probe, an optogenetic system, and a method for fabricating an optogenetic probe are provided. The optogenetic probe has a proximal and a distal end, and includes an elongated body made of a body glass material and extending longitudinally between the proximal and distal ends. The optogenetic probe also includes at least one optical channel, each including an optical channel glass material having a refractive index larger than a refractive index of the body glass material, so as to guide light therealong. The optogenetic probes also includes at least one electrical channel, each including an electrical channel structure having an electrical conductivity larger than the electrical conductivity of the body glass material, so as to conduct electricity therealong. The optogenetic probe further includes at least one fluidic channel, each adapted for transporting fluid therealong. Each optical, electrical and fluidic channel extends longitudinally within the elongated body.
    Type: Application
    Filed: June 18, 2013
    Publication date: May 21, 2015
    Inventors: Jean-François Viens, Jean-François Gravel, Younès Messaddeq, Yannick Ledemi, Maxime Rioux
  • Publication number: 20150141842
    Abstract: An intravascular rotary blood pump possesses a catheter (10), a pumping device (50) fixed distally to the catheter (10) and at least one pressure sensor (30; 60) firmly connected to the pumping device (50) and having a pressure-sensitive area (32) which is exposed to the surroundings and aligned orthogonally to the general longitudinal axis of the blood pump.
    Type: Application
    Filed: April 25, 2013
    Publication date: May 21, 2015
    Inventors: Gerd Spanier, Thorsten Siess, Frank Kirchhoff
  • Patent number: 9034023
    Abstract: Dynamic colorectal PDT methods, devices and photosensitizer compositions to treat abnormal cell growth in anal tissue such as perianal and intra-anal intraepithelial neoplasia grade III are presented. Dynamic colorectal PDT method comprises the steps of administering topically, intravenously or orally a photosensitizer composition; irradiating; monitoring treatment parameters before, during and/or after irradiation. Photosensitizer composition comprises Temoporfin and excipients/carriers, appropriate for the application method. An applicator is provided for colorectal PDT treatments enhancing irradiation delivery and monitoring treatment parameters. Preferably, applicator is made of a material, used to monitor the fluence rate simultaneously while doing optical spectroscopy. Measurement probe devices are provided for monitoring PDT treatment parameters in-vivo.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: May 19, 2015
    Assignee: Biolitec Pharma Marketing Ltd
    Inventors: Bastiaan Kruijt, Eric M van der Snoek, Henricus J. C. M. Sterenborg, Arjen Amelink, Dominic J. Robinson, Wolfgang Neuberger
  • Publication number: 20150126874
    Abstract: Provided are an optical switch, an optical probe including the optical switch, and a medical imaging apparatus including the optical probe. The optical probe includes a probe body that is configured to be insertable into a body cavity, and an optical switch that is disposed in the probe body and includes a first region formed of a material having a first refractive index, and a second region that forms an interface with the first region and is configured to have a fluid is introduced into the second region, wherein the optical switch is configured to change a path of propagation of incident light according to a second refractive index of the second region.
    Type: Application
    Filed: September 2, 2014
    Publication date: May 7, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seung-wan LEE, Woon-bae KIM, Eun-sung LEE, Jong-hyeon CHANG, Min-seog CHOI, Hyun CHOI
  • Publication number: 20150126858
    Abstract: Fiber scanning optical probes and medical imaging apparatuses including the same are provided. The fiber scanning optical probe includes an optical fiber; an actuator attached onto the optical fiber and configured to drive the optical fiber at a driving resonance frequency; a mass provided at a side of the optical fiber and configured to control the driving resonance frequency; and a frequency separator provided on a portion of the optical fiber between the actuator and the mass, the frequency separator being configured to separate the driving resonance frequency into separate resonance frequencies.
    Type: Application
    Filed: October 14, 2014
    Publication date: May 7, 2015
    Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-seog CHOI, Ki-Hun JEONG, Hyeon-Cheol PARK, Seun-wan LEE
  • Publication number: 20150119724
    Abstract: Catheter systems and methods for determining blood flow rates based on light reflection measurements. The catheter may include a lumen extending between a proximal end of the catheter and a distal end of the catheter. The catheter may include fluid infusion openings at the distal end region of the catheter that are configured to permit the indicator fluid to exit the catheter from the lumen. The catheter system may include an optical fiber having one or more sensors thereon for sensing light reflected by blood particles in a body vessel lumen. A blood flow rate may be determined based on the sensed light reflected by blood particles in the body vessel lumen.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 30, 2015
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: JAN WEBER, JAMES M. ANDERSON, AIDEN FLANAGAN, ERIC M. PETERSEN, STEVEN R. LARSEN
  • Publication number: 20150119657
    Abstract: A monitoring device configured to be attached to the ear of a person includes a base, an earbud housing extending outwardly from the base that is configured to be positioned within an ear of a subject, and a cover surrounding the earbud housing. The base includes a speaker, an optical emitter, and an optical detector. The cover includes light transmissive material that is in optical communication with the optical emitter and the optical detector and serves as a light guide to deliver light from the optical emitter into the ear canal of the subject wearing the device at one or more predetermined locations and to collect light external to the earbud housing and deliver the collected light to the optical detector.
    Type: Application
    Filed: November 26, 2014
    Publication date: April 30, 2015
    Inventors: Steven Francis LeBoeuf, Jesse Berkley Tucker, Michael Edward Aumer, Steven Matthew Just
  • Publication number: 20150119723
    Abstract: A diagnostic probe includes a tube having a predetermined length; a deformable cylinder installed by being fitted into the tube such that both ends thereof are exposed to an outside; a guide needle formed in a hollow shape, having a predetermined length, and arranged to surround an outer circumference of the tube; a direction controller connected with an end of the tube, and positioning or vibrating the tube in a radial direction by receiving power from the outside; a vibration generator vibrating the cylinder in an axial direction by receiving power from the outside; and a handle unit connected with the other end of the tube, and connected with the direction controller and the vibration generator.
    Type: Application
    Filed: May 10, 2013
    Publication date: April 30, 2015
    Inventors: Jong-Hyun Lee, Hyoung-Ihl Kim, Gi-Seok Kang, Jae-Cheon Kim
  • Patent number: 9020581
    Abstract: The present invention in one aspect relates to a method for surgical margin evaluation of tissues during breast conserving therapy at a surgical site of interest. In one embodiment, the method comprises the steps of acquiring a plurality of spatially offset Raman spectra from the surgical site of interest, identifying tissue signatures from the plurality of spatially offset Raman spectra, and determining surgical margins of the surgical site from the identified tissue signatures.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: April 28, 2015
    Assignee: Vanderbilt University
    Inventors: Anita M. Mahadevan-Jansen, Matthew D. Keller, Mark C. Kelley
  • Publication number: 20150105669
    Abstract: The present invention relates to a portable device which analyses cervical tissue using two simultaneous measurements, namely an electrical measurement and an optical measurement. The aforementioned device examines different areas of cervical tissue, taking electrical measurements from same in different frequency ranges and optical measurements in three different wavelengths. Once the measurements have been obtained, they are processed by a configurable device or microcontroller in accordance with mathematical formulae obtained from multiple measurements taken from healthy and cancerous tissues. Three possible responses can be obtained from the processing of the measurements: healthy tissue, cancerous tissue or the presence of human papilloma virus. The inventive device can be used as a self-detection device since it is equipped with an attachment for positioning same upon detection of proximity to the cervix in order to take a correct measurement.
    Type: Application
    Filed: December 17, 2014
    Publication date: April 16, 2015
    Inventors: Noel Leon Rovira, Arturo Hernandez Fuentes, Jose Antonio Viornery Escorza, Norma Frida Roffe Samaniego
  • Publication number: 20150099983
    Abstract: Disclosed are various embodiments for a tapered optical guide which may be used to guide light from a light source to a tubular element. Light guided through the tubular element may be projected onto a cavity surface for imaging. The tapered optical guide may comprise multiple optical fibers defining an elongated body having an elongated channel. The elongated body may converge from a first end to a second end such that a first end body diameter is larger than a second end body diameter.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 9, 2015
    Inventors: KAROL HATZILIAS, SCOTT CAHALL, WESS ERIC SHARPE, ROD MCAFEE
  • Publication number: 20150099984
    Abstract: A system for optical coherence tomography includes a source of optical radiation, an optical fiber, and a graded index fiber attached to a distal end of the optical fiber. The optical fiber and the graded index fiber are together configured to provide a common path for optical radiation reflected from a reference interface at a distal end of the graded index fiber and from a target.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 9, 2015
    Applicant: AVINGER, INC.
    Inventor: Manish Kankaria
  • Patent number: 9002439
    Abstract: The present invention relates to a blood vessel wall analyzing apparatus provided with a structure enabling accurate measurement of plaque components in a blood vessel wall in a state that reduces the burden on a patient. In the blood vessel wall analyzing apparatus (1), measurement light is illuminated onto a measured portion within a blood vessel such as a carotid artery (C) from a light illuminating unit (30) provided outside the blood vessel, while light from the measured portion is detected in a light receiving unit (40) provided outside the blood vessel. Thus, since the status of the blood vessel wall can be analyzed without inserting an apparatus involved in measurement into the blood vessel, the burden on the patient is reduced during measurement.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: April 7, 2015
    Assignees: Sumitomo Electric Industries, Ltd., Kyoto University, Keio University
    Inventors: Kazunori Okada, Hiroshi Suganuma, Tatsuhiko Saito, Masato Tanaka, Akira Ishii, Toshihiro Munemitsu, Eiji Okada
  • Patent number: 8996099
    Abstract: A catheter imaging probe for a patient. The probe includes a conduit through with energy is transmitted. The probe includes a first portion through which the conduit extends. The probe includes a second portion which rotates relative to the conduit to redirect the energy from the conduit. A method for imaging a patient. The method includes the steps of inserting a catheter into the patient. There is the step of rotating a second portion of the catheter relative to a conduit extending through a first portion of the catheter, which redirects the energy transmitted through the conduit to the patient and receives the energy reflected back to the second portion from the patient and redirects the reflected energy to the conduit.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: March 31, 2015
    Assignee: Board of Regents, The University of Texas System
    Inventors: Marc D. Feldman, Thomas E. Milner, Shaochen Chen, Jihoon Kim, Li-Hsin Han, Jung-hwan Oh, Lee Ho
  • Publication number: 20150087927
    Abstract: A voxel tagging system (100) includes a sensing enabled device (104) having an optical fiber (126) configured to sense induced strain within the device (Bragg grating sensor). An interpretation module (112) is configured to receive signals from the optical fiber interacting with an internal organ, e.g. heart, and to interpret the signals to determine positions visited by the at least one optical fiber within the internal organ. A data source (152, 154) is configured to generate data associated with an event or status, e.g. respiration, ECG phase, time stamp, etc.. A storage device (116) is configured to store a history (136) of the positions visited in the internal organ and associate the positions with the data generated by the data source (152, 154).
    Type: Application
    Filed: May 14, 2013
    Publication date: March 26, 2015
    Inventors: Robert Manzke, Bharat Ramachandran, Raymond Chan, Tobias Klinder
  • Publication number: 20150088001
    Abstract: The present disclosure relates to an illumination system for endoscopic applications comprising at least one substantially monochromatic light source having a predefined central wavelength between 400 and 500 nm or between 500 and 550 nm, an optical transmission path adapted to guide light emanating from the light source to an endoscopic region of examination, and an optical band-rejection filter, wherein the illumination system is adapted to illuminate at least a part of the region of examination by generating autofluorescence in surrounding tissue, and the band-rejection filter is adapted to attenuate at least said light source wavelength to a viewer and wherein said light source is the single light source in the illumination system.
    Type: Application
    Filed: December 19, 2012
    Publication date: March 26, 2015
    Applicant: Technical University of Denmark
    Inventors: Lars Lindvold, Gregers Hermann