Bleeding Detection Patents (Class 600/371)
  • Patent number: 10772509
    Abstract: A method for determining emptying of upper gastrointestinal tract includes the steps of: providing an upper gastrointestinal monitoring system including a detecting device, a transmission module, a signal processing device and a signal display; acquiring a time signal of RGB three primary colors of an upper gastrointestinal tract image with the detecting device; transmitting the time signal of RGB three primary colors by the transmission module to the signal processing device; calculating an intensity ratio of the time signal of RGB three primary color; evaluating the upper gastrointestinal emptying according to the intensity ratio of the time signal of RGB three primary color; and displaying the evaluation result on the signal display.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 15, 2020
    Assignee: MEDIVISIONTECH CO., LTD.
    Inventors: Chien-Cheng Chen, Chiao-Hsiung Chuang
  • Patent number: 10772508
    Abstract: A method for determining upper gastrointestinal bleeding course includes the steps of: providing an upper gastrointestinal bleeding monitoring system including a bleeding detecting device, a transmission module, a signal processing device and a signal display; acquiring a time signal of RGB three primary colors of an upper gastrointestinal tract image with the bleeding detecting device; transmitting the time signal of RGB three primary colors by the transmission module to the signal processing device; calculating an intensity ratio of the time signal of RGB three primary color; evaluating the upper gastrointestinal bleeding course according to the intensity ratio of the time signal of RGB three primary color; and displaying the evaluation result on the signal display.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 15, 2020
    Assignee: MEDIVISIONTECH CO., LTD.
    Inventors: Chien-Cheng Chen, Chiao-Hsiung Chuang
  • Patent number: 10773050
    Abstract: A method and apparatus for a balloon catheter can be provided. The balloon catheter includes a catheter and a balloon, a plurality of measuring electrodes formed on a primary substrate extend around the catheter within the balloon. The primary substrate and secondary substrate is formed by a portion of a flexible resilient membrane. The membrane is coiled to form a roll, and a primary substrate is also coiled around a rolled secondary substrate. The coiled primary and secondary substrates is urged through a second lumen in the catheter from the proximal end thereof to a radial slot in the catheter communicating with the second lumen. The primary substrate is urged through the radial slot and wrapped around and bonded to the catheter to form the measuring electrodes as band electrodes.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: September 15, 2020
    Assignee: FLIP TECHNOLOGIES LIMITED
    Inventor: Adrian McHugh
  • Patent number: 10765836
    Abstract: A detector and a method of its use with a guidewire to reduce the incidence of guidewires accidently being left inside patients during the placement of central venous (and other) catheters. In particular, an electronic detector detects whether a catheter has been placed over a guidewire and whether the guidewire has been removed thereafter. In addition, the distance the guidewire has progressed out the patient side of the detector housing which will correspond to the length of guidewire actually inside the patient and any time may be provided.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: September 8, 2020
    Assignee: HORIZON PATENTS, LLC.
    Inventors: Mark M. Gottlieb, James B. Solomon
  • Patent number: 10722220
    Abstract: A non-invasive system for sampling gastrointestinal microbiota with their associated environment for discovery, characterization, medical research, diagnostics, and treatment using an ingestible, non-digestible sampling capsule. The capsule device, with ports open for acquiring a sample of gastrointestinal microbiota and content, is placed inside an immediate or delayed release capsule. When the outer capsule dissolves according to its specifications, enteric fluid and content enters the sampling capsule through the ports triggering a hydrophilic stop to release a pulling force to close the ports by enveloping the capsule outer casing over the inner casing, capturing the sample, and holding it sealed until it completes passage through the digestive track, and is recovered from feces for analysis.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: July 28, 2020
    Inventor: James Phillip Jones
  • Patent number: 10524662
    Abstract: An electromagnetic (EM) probe for monitoring one or more biological tissues. The EM probe comprises a cup shaped cavity having an opening and an interior volume, a circumferential flange formed substantially around the cup shaped cavity, in proximity to the opening, at least one layer of a material, for absorbing electromagnetic radiation, applied over at least one of a portion of the circumferential flange and a portion of the outer surface of the cup shaped cavity, and at least one EM radiation element which performs at least one of emitting and capturing EM radiation via the interior volume.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: January 7, 2020
    Assignee: Sensible Medical Innovations Ltd.
    Inventors: Amir M. Saroka, Benyamin Almog, Shlomi Bergida
  • Patent number: 10176372
    Abstract: Example embodiments presented herein relate to solutions for analyzing and/or classifying microwave scattering data. The analyzing and/or classifying may be utilized for estimating an internal condition in an enclosed volume.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: January 8, 2019
    Assignee: MEDFIELD DIAGNOSTICS AB
    Inventors: Mikael Persson, Mohammad Ali Khorshidi, Thomas Mckelvey, Hamed Yousefi Mesri, Masood Khazaeli Najafabadi
  • Patent number: 10166069
    Abstract: A neuromodulation catheter in accordance with a particular embodiment includes an elongate shaft and a neuromodulation element operably connected to the shaft. The shaft includes a proximal hypotube segment at its proximal end portion and a jacket disposed around at least a portion of an outer surface of the hypotube segment. The jacket may be made at least partially of a polymer blend including polyether block amide and polysiloxane. The neuromodulation element includes a distal hypotube segment and a tubular jacket disposed around at least a portion of an outer surface of the distal hypotube segment. The jacket has reduced-diameter segments spaced apart along its longitudinal axis. The neuromodulation element further includes band electrodes respectively seated in the reduced-diameter segments and respectively forming closed loops extending circumferentially around the jacket.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: January 1, 2019
    Assignee: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Don Tran, Rudy Beasley, Jaime Rios, Sukyoung Shin, Sina Som
  • Patent number: 9931045
    Abstract: A nerve electrode cuff includes an electrode and a cuff body.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: April 3, 2018
    Assignee: MEDTRONIC XOMED, INC.
    Inventors: William C. Brunnett, David C. Hacker, Carla A. Pagotto, Denise Grant
  • Patent number: 9808300
    Abstract: An apparatus for locally controlling smooth muscle tone includes a first electrode for insertion into an artery; a barrier for preventing the first electrode from contacting an arterial wall; a second electrode; a power supply; and a controller for coupling the power supply to the electrodes. The controller is configured to cause the electrode to maintain a waveform for controlling polarization of smooth muscle tone.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: November 7, 2017
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Roger Hastings, William J. Drasler, Vitaly N. Shapovalov, Mark Schroeder, Anupama Sadasiva
  • Patent number: 9448145
    Abstract: The present invention relates to a device and a method for collecting a sample of colorectal mucocellular layer excreted immediately following the natural act of defaecation from the surface of the anal area of a human subject, and preservation and analysis of the collected sample for detecting diagnostically informative disease biomarkers.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: September 20, 2016
    Assignee: Dianodus Limited
    Inventors: Alexandre Loktionov, Tatiana Bandaletova, Neil Anderson
  • Patent number: 9125290
    Abstract: Polymer materials are useful as electrode array bodies for neural stimulation. They are particularly useful for retinal stimulation to create artificial vision, cochlear stimulation to create artificial hearing, or cortical stimulation many purposes. The pressure applied against the retina, or other neural tissue, by an electrode array is critical. Too little pressure causes increased electrical resistance, along with electric field dispersion. Too much pressure may block blood flow. Common flexible circuit fabrication techniques generally require that a flexible circuit electrode array be made flat. Since neural tissue is almost never flat, a flat array will necessarily apply uneven pressure. Further, the edges of a flexible circuit polymer array may be sharp and cut the delicate neural tissue. By applying the right amount of heat to a completed array, a curve can be induced.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: September 1, 2015
    Assignee: Second Sight Medical Products, Inc.
    Inventors: Robert Greenberg, Neil Hamilton Talbot, Jordan Matthew Neysmith, James S Little, Brian V Mech, Mark S Humayun, Dilek Guven, Anne Marie Ripley
  • Patent number: 9084584
    Abstract: An physiological data acquisition apparatus includes three or more leads, at least one AC current source, a switching mechanism structured to selectively couple the current source to selected lead pairs to inject an AC current across the selected lead pairs which produces an AC voltage across the selected lead pair, and a processing device. The processing device is structured to (i) determine an impedance across the current selected lead pair based on the AC voltage, (ii) determine whether the impedance is less than a predetermined threshold, (iii) if the impedance is less than the predetermined impedance threshold cause the current selected lead pair to be used for generating physiological parameter data, and (iv) if the impedance is not less than the threshold cause the switching mechanism to couple the at least one AC current source to a new selected pair of the leads.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: July 21, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: James Martin Weiland, Ronald Dean Fligge, Louis Welty Hiener, III, John Liston
  • Publication number: 20150141782
    Abstract: A system and method for detection of calorimetric abnormalities within a body lumen includes an image receiver for receiving images from within the body lumen. Also included are a transmitter for transmitting the images to a receiver, and a processor for generating a probability indication of presence of colorimetric abnormalities on comparison of color content of the images and at least one reference value.
    Type: Application
    Filed: November 17, 2014
    Publication date: May 21, 2015
    Inventors: Doron ADLER, Ofra Zinaty, Daphna Levy, Arkady Glukhovsky
  • Patent number: 9011334
    Abstract: Techniques are disclosed for monitoring the flow of blood returning to a patient from an extracorporeal therapy machine, such as a hemodialysis machine or an apheresis machine. Blood returning from such a machine is pumped, typically by a peristaltic pump, which returns the blood in pulsed flow or pulses. This flow can be sensed by Doppler flow sensors or accelerometers as it returns to the patient. If the flow is interrupted by dislodgement of the venous access needle, or by leaking of blood from the needle, these sensors will detect significantly different flow or vibrations. A controller can then cease therapy, alert a caregiver, or sound an alarm.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: April 21, 2015
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventor: Chad E. Bouton
  • Publication number: 20150094549
    Abstract: A method and apparatus of determining the condition of a bulk tissue sample, by: positioning a bulk tissue sample between a pair of induction coils (or antennae); passing a spectrum of alternating current (or voltage) through a first of the induction coils (or antennae); measuring spectrum of alternating current (or voltage) produced in the second of the induction coils (or antennae); and comparing the phase shift between the spectrum of alternating currents (or voltages) in the first and second induction coils (or antennae), thereby determining the condition of the bulk tissue sample.
    Type: Application
    Filed: October 6, 2014
    Publication date: April 2, 2015
    Inventors: Boris Rubinsky, Cesar A. Gonzalez
  • Publication number: 20150087935
    Abstract: Disclosed is a system for real-time detection and annunciation of blood associated with menstruation and surgical wounds. The system comprises blood detection means, communication means for relay of blood detection information, and annunciation means to inform the user of the emanation of blood. Various system embodiments include local and remote as well as covert and non-covert annunciation to users or medical personnel, various forms of real-time blood detection sensors, blood analysis capability, and smart bandage telemetry.
    Type: Application
    Filed: September 22, 2014
    Publication date: March 26, 2015
    Inventors: Alice McKinstry Davis, Dennis Willard Davis, Russell Denning Davis, Harry Michael Pellegrino
  • Patent number: 8961417
    Abstract: An apparatus comprises a catheter comprising a first electrode. The apparatus also comprises a second electrode electrically attached to a person and coupled to the first electrode via the person's tissue. Logic is coupled to the electrodes and generates an electrical signal that is provided through the electrodes and computes an impedance or conduction velocity associated with the electrodes based on the electrical signal. The logic stores a threshold against which said computed impedance or conduction velocity is compared by said logic.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: February 24, 2015
    Assignee: Texas Heart Institute
    Inventor: Mehdi Razavi
  • Patent number: 8946501
    Abstract: A liquid leakage detection system requiring no power supply from an outer source and configured to be relatively simple and moderate in price. A liquid leakage detection system (10) including an infusion tube (11), a syringe needle (12) coupled to the infusion tube (11), an absorbent element (16) adapted to be placed in the vicinity of a point (12a) of the syringe needle (12) to be pricked through a patient skin and a sensor unit (14) located on an upper side or within the absorbent element (16).
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: February 3, 2015
    Assignee: Aqua Power System, Japan
    Inventors: Naoyuki Kamatani, Tadashi Ishikawa, Yoshiaki Hasebe
  • Publication number: 20150025349
    Abstract: A pad is disclosed having a grid of absorbent structures (e.g., squares) formed on the pad. The pad may be used to quantify or otherwise assess blood loss by a patient. For example, blood lost by the patient and absorbed by the pad may be quantified by counting the number of saturated squares on the pad and taking into account the known absorbance of each square.
    Type: Application
    Filed: February 12, 2013
    Publication date: January 22, 2015
    Inventors: Z. Maria Oden, Ana Fey El-Behadli Gonzalez, Lila Kerr, Chethan Ramprasad, Amit Suneja, Katherine Emily Barnett, Rebecca Rae Richards-Kortum, Manisha Gandhi
  • Publication number: 20150011856
    Abstract: A method to detect internal bleeding complications. The method includes determining, by an impedance assessment unit, a bioimpedance value at each of a plurality of frequencies. The method further includes normalizing, by the impedance assessment unit, each bioimpedance value at each frequency to a calibration bioimpedance value at that same frequency to produce a set of normalized bioimpedance values at the plurality of frequencies. The method also includes computing a bleed indication value based on the set of normalized bioimpedance values; and generating an alarm indicative of a bleed complication based on a comparison of the bleed indication value to a threshold.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 8, 2015
    Inventor: Christopher Alexander Arevalos
  • Publication number: 20140296653
    Abstract: A brace device for the support of a wearer. The brace device comprises a flexible smart fabric, operable to partially or substantially enclose and/or lie adjacent to one or more portions of the thoracic, lumbar and/or cervical portions of the spine of the wearer. Fabric hardening means are provided, operable to partially or substantially harden one or more regions of the smart fabric upon application of an activating stimulus, thereby to prohibit, restrict and/or resist movement of one or more portions of the spine of the wearer. One or more predetermined regions of the smart fabric are in a substantially flexible configuration when the fabric hardening means are not activated, facilitating positioning, fitment and/or adjustment of the device around the wearer.
    Type: Application
    Filed: February 14, 2014
    Publication date: October 2, 2014
    Inventor: Arthur L. JENKINS, III
  • Publication number: 20140288405
    Abstract: An EIT system 1 adapted to detect internal bleeding in a body portion, the EIT system 1 comprising a plurality of electrodes 3 adapted in use to extend in a substantially linear orientation across one side only of the body portion and to be applied in electrical contact with the skin of the body portion, a current source adapted to cyclically apply an electric current between one pair of the electrodes 3, a voltage measuring means to measure the voltage across each of the other pairs of the electrodes resulting from the current, a data collection system 2 and a data analysis system 4 to analyse data resulting from the voltages that are measured by the voltage measuring means, wherein the analysis system 4 is configured to obtain quantitative information related to amounts and rates of conductive tissue changes occurring in the body, based on an EIT analysis equivalent to that obtained from data derived from electrodes spaced around the full perimeter of the body portion.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 25, 2014
    Inventors: Rosalind Sadleir, Andrew Duncan
  • Publication number: 20140288404
    Abstract: An EIT system 1 adapted to detect internal bleeding in a body portion, the EIT system 1 comprising a plurality of electrodes 3 adapted in use to extend in a substantially linear orientation across one side only of the body portion and to be applied in electrical contact with the skin of the body portion, a current source adapted to cyclically apply an electric current between one pair of the electrodes 3, a voltage measuring means to measure the voltage across each of the other pairs of the electrodes resulting from the current, a data collection system 2 and a data analysis system 4 to analyse data resulting from the voltages that are measured by the voltage measuring means, wherein the analysis system 4 is configured to obtain quantitative information related to amounts and rates of conductive tissue changes occurring in the body, based on an EIT analysis equivalent to that obtained from data derived from electrodes spaced around the full perimeter of the body portion.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 25, 2014
    Inventors: Rosalind Sadleir, Andrew Duncan
  • Publication number: 20140275860
    Abstract: Devices and a system for detection of blood within in-vivo fluids are provided. A device comprises a housing that includes a gap. The gap has at least one opening through which in-vivo fluids may enter and/or exit the gap. The device further comprises an illumination source for illuminating the in-vivo fluids in the gap, a light detector for detecting light which passes through the in-vivo fluids in the gap, and flexible fins disposed on the housing in the vicinity of the gap's opening for covering the opening when the fins are folded and for pumping fluids into and out of the opening by repeated closure and opening of the opening by the fins, due to repeated peristaltic waves. This pumping effect may lead to continuous flow of fluids into and out of the opening and thus into and out of the gap of the device.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Given Imaging Ltd.
    Inventors: Dan ROTTENBERG, Robert Sayegh
  • Publication number: 20140213871
    Abstract: Provided is a fluorescence observation apparatus including a light source; a section generating a fluorescence image of an object; a section generating a reference image of the object; a section generating a corrected image in which emphasized are pixels of the reference image corresponding to pixels each having luminance value equal to or more than a first threshold value in the fluorescence image; a display unit displaying the reference image or the corrected image; a bleeding state determining section determining whether or not a bleeding region of the subject detected based on the reference image is more than a predetermined range; and a section switching between displaying the reference image on the display unit if the determining section determines that the region is not more than the range, and displaying the corrected on the image display if the determining section determines that the region is more than the range.
    Type: Application
    Filed: April 1, 2014
    Publication date: July 31, 2014
    Applicant: OLYMPUS CORPORATION
    Inventor: Toshiaki WATANABE
  • Patent number: 8784313
    Abstract: Novel prognosis methods associated with cases of postpartum haemorrhage providing a predictive test enabling practitioners to provide better management of patients suffering from postpartum haemorrhage. Different risk factors exist on which a score allowing prediction of the need to carry out invasive procedures to stop bleeding has been developed.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: July 22, 2014
    Assignee: Assistance Publique—Hopitaux de Paris
    Inventors: Alexandre Mebazaa, Etienne Gayat, Matthieu Resche-Rigon, Olivier Morel, Yann Fargeaudou, Matthias Rossignol, Didier Payen
  • Patent number: 8768429
    Abstract: An EIT system (1) adapted to detect internal bleeding in a body portion, the EIT system (1) comprising a plurality of electrodes (3) adapted in use to extend in a substantially linear orientation across one side only of the body portion and to be applied in electrical contact with the skin of the body portion, a current source adapted to cyclically apply an electric current between one pair of the electrodes (3), a voltage measuring means to measure the voltage across each of the other pairs of the electrodes resulting from the current, a data collection system (2) and a data analysis system (4) to analyze data resulting from the voltages that are measured by the voltage measuring means, wherein the analysis system (4) is configured to obtain quantitative information related to amounts and rates of conductive tissue changes occurring in the body, based on an EIT analysis equivalent to that obtained from data derived from electrodes spaced around the full perimeter of the body portion.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: July 1, 2014
    Assignee: E.I.T. Pty Ltd.
    Inventors: Rosalind Sadleir, Andrew Duncan
  • Publication number: 20140171768
    Abstract: A diagnostic system includes sensors with at least one being a diagnostic device comprising one or more solid state light sources used in a differential measurement. A software application capable of generating physiological information based on the sensors is operable on a control system adapted to receive, store and process the physiological information. The control system includes a touch-screen, circuitry for obtaining position information from a location sensor, and a wireless transceiver to transmit wireless data including the physiological information over a wireless link and is further capable of receiving voice and manually entered input signals. A host includes a digital file for receiving and storing the wireless data, control logic to process the wireless data to generate a status of the user, memory for recording the status, and an output for communicating the status over a communication link to display output devices located remotely from the host.
    Type: Application
    Filed: February 21, 2014
    Publication date: June 19, 2014
    Applicant: Omni MedSci, Inc.
    Inventor: Mohammed N. ISLAM
  • Patent number: 8727983
    Abstract: A catheter-based medical device includes a catheter that is configured and arranged for at least partial insertion into a patient and that defines at least one lumen that is configured and arranged to receive a first fluid. A conductive-fluid detector is coupled to the at least one lumen and is configured and arranged to detect when a second fluid is disposed within the at least one lumen that is more conductive than the first fluid. The conductive-fluid detector includes a plurality of axially-positioned bodies, each body defining a lumen. The lumens of the axially-positioned bodies are aligned to form a shared lumen in fluid communication with the at least one lumen of the catheter. Spaced apart electrodes are disposed within the shared lumen.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: May 20, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Charlotte F. Kinnison
  • Patent number: 8721546
    Abstract: Devices and methods for guidewire assisted placement of catheters into blood vessels are described. Some of the devices and methods relate to automated or partially automated or assisted insertion and placement of an intravenous catheter into a vein or artery of a patient. Other of the devices are blood draw devices and methods for insertion and placement of an intravenous device into a vein or artery of a patient or to withdraw a blood sample from the patient. The devices also provide for guide wire tip inspection after use.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: May 13, 2014
    Assignee: Vascular Pathways, Inc.
    Inventor: Amir Belson
  • Patent number: 8708908
    Abstract: An access site disconnection system and method are disclosed. Radio frequency transmitters and receivers are placed near an access site. When a patient receives dialysis treatment, wetness may arise from blood if the access needle becomes disconnected from the access site. Radio-frequency transmitters are mounted on or near gauze or other absorbent material placed adjacent the access site, as are radio-frequency receivers. After the sensors are placed, the dialysis machine and radio-frequency control circuit may be initialized or baselined, and dialysis treatment, such as hemodialysis, begun. If blood leaks from the access site, such as if the access needle is dislodged, the blood attenuates the radio frequency transmissions, which are detected by the receivers. A signal is sent to a controller or to an output device to raise an alert or sound an alarm.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: April 29, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventor: Chad E. Bouton
  • Publication number: 20140113008
    Abstract: The invention is directed to methods for diagnosing reperfusion/non-reperfusion hemorrhage and predicting cardiac arrhythmias and sudden cardiac death in subjects comprising using imaging techniques to detect regional iron oxide deposition. The invention also provides treatment methods for subject at increased risk of sudden cardiac death.
    Type: Application
    Filed: June 13, 2012
    Publication date: April 24, 2014
    Applicant: CEDARS-SINAI MEDICAL CENTER
    Inventors: Rohan Dharmakumar, Ivan Cokic
  • Patent number: 8696571
    Abstract: A monitor for an extracorporeal therapy access site is disclosed. The monitor includes a bandage atop or adjacent the access site and a sensor for monitoring the bandage. The bandage includes a layer of polymer that expands when wetted with blood. The expansion causes a break in continuity of the sensor, or in an alternate embodiment, causes a sensor to cease detecting a target. When the break occurs, the control circuit monitoring the bandage sends a signal that a break has occurred, and a remote monitor then takes appropriate action, such as ceasing therapy, sending an alert, or sounding an alarm. In another embodiment, connecting wires in a continuity circuit are held apart by a polymer that dissolves when contacted by blood. If a leak occurs and a small portion of the polymer dissolves, the wires make contact, thus detecting a blood leak.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: April 15, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Alan W. Marttila, William W. Chan, Reema V. Bhavnani
  • Publication number: 20140039287
    Abstract: A system and method for detection of calorimetric abnormalities within a body lumen includes an image receiver for receiving images from within the body lumen. Also included are a transmitter for transmitting the images to a receiver, and a processor for generating a probability indication of presence of colorimetric abnormalities on comparison of color content of the images and at least one reference value.
    Type: Application
    Filed: October 4, 2013
    Publication date: February 6, 2014
    Applicant: GIVEN IMAGING LTD.
    Inventors: Doron ADLER, Ofra Zinaty, Daphna Levy, Arkady Glukhovsky
  • Publication number: 20140031659
    Abstract: A bleeding detection unit in a surgical system processes information in an acquired scene before that scene is presented on a display unit in the operating room. For example, the bleeding detection unit analyzes the pixel data in the acquired scene and determines whether there are one or more initial sites of blood in the scene. Upon detection of an initial site of blood, the region is identified by an initial site icon in the scene displayed on the display unit. In one aspect, the processing is done in real-time which means that there is no substantial delay in presenting the acquired scene to the surgeon.
    Type: Application
    Filed: July 22, 2013
    Publication date: January 30, 2014
    Applicant: Intuitive Surgical Operations, Inc.
    Inventors: Wenyi ZHAO, Catherine J. Mohr, Jonthan M. Sorger
  • Publication number: 20140012120
    Abstract: An apparatus and method for capturing sensor readings relating to one or more blood flow attributes of a patient at or around a puncture site when the patient is being subjected to hemostasis process by a health care provider. A wide range of different sensor technologies and component configurations can be utilized. The apparatus can operate as a fully stand-alone device, a fully integrated component of a hemostasis treatment tool, or any configuration between the two polar extremes of integration/stand-alone.
    Type: Application
    Filed: August 30, 2013
    Publication date: January 9, 2014
    Applicant: Accumed Radial Systems, LLC
    Inventors: Mauricio Gabriel Cohen, James Patrick Ryan, James G. Downward, IV, Joseph R. Korotko
  • Publication number: 20130303870
    Abstract: One variation of the method for managing blood loss of a patient includes: receiving an image of a physical sample; extracting a feature from an area of the image corresponding to the physical sample; estimating a blood volume indicator of the physical sample according to the extracted feature; estimating a patient blood loss based on the blood volume indicator; estimating a euvolemic patient hematocrit based on an estimated patient blood volume and the estimated patient blood loss; receiving a measured patient hematocrit; and generating a volemic status indicator based on a comparison between the measured patient hematocrit and the estimated euvolemic patient hematocrit.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 14, 2013
    Applicant: Gauss Sergical
    Inventors: Siddarth Satish, Ali Zandifar, Kevin J. Miller
  • Publication number: 20130237788
    Abstract: A system and method include a sensor overlying a target area of skin to aid in diagnosing subcutaneous fluid leakage. The sensor includes an absorbent that minimizes noise in detected electromagnetic radiation to make it easier to analyze a signal that is indicative of subcutaneous fluid leakage.
    Type: Application
    Filed: March 10, 2013
    Publication date: September 12, 2013
    Applicant: ivWatch, LLC
    Inventors: Gary P. Warren, Matthew S. Alley
  • Publication number: 20130237787
    Abstract: A system and method include a sensor overlying a target area of skin to aid in diagnosing subcutaneous fluid leakage. The sensor includes an absorbent that minimizes noise in detected electromagnetic radiation to make it easier to analyze a signal that is indicative of subcutaneous fluid leakage.
    Type: Application
    Filed: March 10, 2013
    Publication date: September 12, 2013
    Applicant: IVWATCH, LLC
    Inventors: Gary P. Warren, Matthew S. Alley
  • Patent number: 8517950
    Abstract: An apparatus for determining an indicator parameter relating to a subject comprising at least an input line for receiving electrical signals coming from a electrodes, receiving a signal coming from a peripheral sensor predisposed to operate in a predetermined peripheral section of the subject's body; a control unit connected to the input line and configured for determining a value of an indicator value (iHAT) as a function of the instant of generation (TGj) of a pressoric wave in relation to the heartbeat.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: August 27, 2013
    Inventor: Marco Vettorello
  • Publication number: 20130217991
    Abstract: A method of detecting bleeding from a wound including: providing, on a support, a substantially non-volatile agent capable of forming a volatile agent on contact with blood; disposing the non-volatile agent on the support at or near the wound; providing a probe for detection of the volatile agent; disposing the probe for detection of the volatile agent at a distance from the support; generating a flow of air in a direction from the support to the probe; monitoring the formation of volatile agent by the probe, thereby detecting a bleeding of the wound. Also disclosed are a system and a disposable device for use in the method.
    Type: Application
    Filed: October 31, 2011
    Publication date: August 22, 2013
    Applicant: REDSENSE MEDICAL AB
    Inventors: Daniel Engvall, Patrik Stroemsten
  • Publication number: 20130190585
    Abstract: The present invention relates to an in vitro method of prognosis for the arrest of bleeding in a patient suffering from postpartum haemorrhage in the absence of an invasive procedure, comprising the following steps: (a) determining, using a biological sample from said patient, the plasma fibrinogen concentration, the blood troponin concentration and also the prothrombin time; (b) studying at least two clinical markers for said patient, selected from the group comprising heart rate and the presence of placentation abnormalities; (c) calculating a score Z according to the following equation: Z=a+b+v+d+e; where a is associated with the existence of placentation abnormalities in said patient, with a being 0 when no placentation abnormality is observed in said patient and a being 1 when one or more placentation abnormalities are observed in said patient; where b is associated with the heart rate of said patient, with b being 0 when the heart rate of said patient is less than or equal to 115 bpm (beats per minute)
    Type: Application
    Filed: August 6, 2009
    Publication date: July 25, 2013
    Inventors: Alexandre Mebazaa, Etienne Gayat, Matthieu Resche-Rigon, Olivier Morel, Yann Fargeaudou, Matthias Rossignol, Didier Payen
  • Patent number: 8483792
    Abstract: Embodiments herein provide an analyte sensor subassembly that provides an integrated structure enabling suitably secure electrical contact between an analyte sensor and the electronic components of an analyte sensor assembly. An analyte sensor subassembly assists the process of inserting the sensor into skin. An analyte sensor subassembly may operate in concert with one or more sensor insertion tools to provide insertion of an analyte sensor into the skin of a subject/patient. Associated devices, such as channel guides and sensor insertion tools, are also provided, as are methods of operation and sensor insertion.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: July 9, 2013
    Assignee: iSense Corporation
    Inventors: Dennis Slomski, Robert Bruce, Jon Fortuna, David B. Kreitlow
  • Patent number: 8454550
    Abstract: An apparatus is disclosed for detecting moisture, which is intended for the use in an apparatus for monitoring an access to a patient for a device by means of which a fluid is conducted to and/or removed from a patient via a hose line, in particular for monitoring the vascular access during an extracorporeal blood treatment, wherein blood of a patient is removed from the patient via an arterial hose line, which has an arterial puncture cannula, and is conducted back to the patient via a venous hose line, which has a venous puncture cannula. The apparatus for detecting moisture is designed as a pad which is made of a flexible material and is to be applied onto the patient's skin and which comprises an upper side facing away from the patient's skin and a lower side facing the patient's skin. The pad comprises an opening for the passage of fluid, in particular blood, and a moisture sensor having contact elements for the connection of the same.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: June 4, 2013
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Christoph Koenig, Alexander Schroers, Andreas Wuepper, Alexander Heide, Juergen Klewinghaus
  • Patent number: 8398575
    Abstract: An early warning and shutdown system that connects to a fluid loss detection device for dressings at pre-existing port sites, catheter sites, operative sites, ostomy sites, drain sites, line sites such as those utilized in hemodialysis, wound sites, or other areas for which monitoring of fluid or blood loss is medically indicated. The early warning and shutdown system sounds an alarm when the fluid loss detection device senses a loss of fluid, and then compresses a return tube carrying such fluid to stop further fluid loss if the fluid loss continues.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: March 19, 2013
    Inventor: Kenneth Shawn McCall
  • Publication number: 20130041241
    Abstract: A method is disclosed in which a vapor-deposited coating or layer is directly or indirectly applied to at least a portion of the internal wall of the barrel of a capped pre-assembly comprising a barrel, optionally a dispensing portion, and a cap. The cap is secured to the barrel and at least substantially isolates the distal opening of the dispensing portion from pressure conditions outside the cap. A vapor-deposited coating or layer is applied directly or indirectly to at least a portion of the internal wall of the barrel while the pre-assembly is capped. The coating or layer is applied under conditions effective to maintain communication from the barrel lumen to the exterior via the front opening, optionally further via the dispensing portion lumen if present, at the end of the applying step. The capped pre-assembly can be pressure tested easily and rapidly, for example with a test duration between 1 and 60 seconds, to determine whether it has container closure integrity.
    Type: Application
    Filed: October 12, 2012
    Publication date: February 14, 2013
    Inventors: John T. Felts, Thomas E. Fisk, Shawn Kinney, Christopher Weikart, Benjamin Hunt, Adrian Raiche, Brian Fitzpatrick, Peter J. Sagona, Adam Stevenson
  • Patent number: 8366615
    Abstract: An apparatus comprises a sheath for introducing a catheter into a blood vessel, at least one electrode provided on the sheath, at least one other electrode; and a measuring device to which at least one pair of electrodes are coupled. The measuring device measures the impedance or conduction velocity between the first electrode on the sheath and the second electrode.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: February 5, 2013
    Assignee: Texas Heart Institute
    Inventor: Mehdi Razavi
  • Patent number: 8360977
    Abstract: A monitor for an extracorporeal therapy access site is disclosed. The monitor includes a bandage atop or adjacent the access site and a sensor for monitoring the bandage. The bandage includes a layer of polymer that expands when wetted with blood. The expansion causes a break in continuity of the sensor, or in an alternate embodiment, causes a sensor to cease detecting a target. When the break occurs, the control circuit monitoring the bandage sends a signal that a break has occurred, and a remote monitor then takes appropriate action, such as ceasing therapy, sending an alert, or sounding an alarm. In another embodiment, connecting wires in a continuity circuit are held apart by a polymer that dissolves when contacted by blood. If a leak occurs and a small portion of the polymer dissolves, the wires make contact, thus detecting a blood leak.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: January 29, 2013
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Alan W. Marttila, William W. Chan, Reema A. Bhagtani
  • Publication number: 20120330117
    Abstract: Tools and techniques for estimating a probability that a patient is bleeding or has sustained intravascular volume loss (e.g., due to hemodialysis or dehydration) and/or to estimate a patient's current hemodynamic reserve index, track the patient's hemodynamic reserve index over time, and/or predict a patient's hemodynamic reserve index in the future. Tools and techniques for estimating and/or predicting a patient's dehydration state. Tools and techniques for controlling a hemodialysis machine based on the patient's estimated and/or predicted hemodynamic reserve index.
    Type: Application
    Filed: July 20, 2012
    Publication date: December 27, 2012
    Applicants: The Regents of the University of Colorado, a body corporate, Flashback Technologies, Inc.
    Inventors: Gregory Zlatko Grudic, Steven Lee Moulton, Isobel Jane Mulligan