Pressure Transducer Structure Patents (Class 600/488)
  • Patent number: 10641672
    Abstract: Pressure sensors and associated structures that may facilitate the use of automated connection processes and tools. An example may provide structures for aligning interconnect wires to pressure sensor bondpads in order to facilitate the use of automated processes and tools.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: May 5, 2020
    Assignee: Silicon Microstructures, Inc.
    Inventors: Holger Doering, Stephen C. Terry, Justin Gaynor, Omar Abed, Fernando Alfaro
  • Patent number: 10591375
    Abstract: A pressure sensor is provided, the sensor comprising an inlet for connecting to a body of gas; a diaphragm assembly comprising a first diaphragm and a second diaphragm, the first and second diaphragms defining a chamber therebetween, the chamber being connected to the inlet; a first transducer responsive to movement of the first diaphragm and operable to produce a first electrical signal in response to the same; and a second transducer responsive to movement of the second diaphragm and operable to produce a second electrical signal in response to the same; and an amplifier disposed in the chamber of the diaphragm assembly and connected to the first and second transducers to receive the first and second electrical signals therefrom.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: March 17, 2020
    Assignee: Frequency Precision Ltd.
    Inventor: Thomas Dwyer
  • Patent number: 10543083
    Abstract: A method of assembling an electronic prosthetic aortic valve is provided. The method includes inserting an electronics component into a valve component, the electronics component including one or more electrodes and a prosthetic-valve coil, and the valve component including a frame and prosthetic leaflets coupled to the frame; and coupling the electronics component to the valve component. Other embodiments are also described.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: January 28, 2020
    Assignee: RAINBOW MEDICAL LTD.
    Inventor: Yossi Gross
  • Patent number: 10527488
    Abstract: An optical detecting device has gas emission and pressure reduction function and includes a holder, a light penetrating component, a light detecting component, a hole structure, and a. The light penetrating component is disposed on the holder to form an accommodating space whereinside the light detecting component is disposed. The hole structure is formed on the holder to connect with the accommodating space. The waterproofing and ventilating component is disposed on the holder and covers the hole structure to prevent liquid from leaking into the accommodating space via the hole structure. While an inner gas pressure of the accommodating space is decreased, part of the gas is exhausted from the accommodating space via the hole structure and the waterproofing and ventilating component.
    Type: Grant
    Filed: June 5, 2016
    Date of Patent: January 7, 2020
    Assignee: PixArt Imaging Inc.
    Inventor: Chi-Chih Shen
  • Patent number: 10524673
    Abstract: The invention describes an implantable pressure sensor having a housing, wherein the housing has walls and two or more pressure transfer membranes bounding an internal volume, wherein the pressure transfer membranes are not coplanar.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: January 7, 2020
    Assignee: BIOTRONIK SE & Co. KG
    Inventors: Andreas Bitzer, Alois Pfenniger, Henning Ebert, Andre van Ooyen, Joachim Elsner
  • Patent number: 10492698
    Abstract: Pressure-sensing intravascular devices, systems, and methods are provided. In some instances, the pressure-sensing intravascular devices include a cylindrical body having a proximal portion and a distal portion; a pressure-sensing component coupled to the distal portion of the cylindrical body, the pressure-sensing component being at least partially wrapped around a circumference of the cylindrical body; and a communication cable coupled to the pressure sensing component. The intravascular devices can be catheters and/or guidewire. Associated systems and methods are also provided.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: December 3, 2019
    Assignee: VOLCANO CORPORATION
    Inventor: Katie Keller
  • Patent number: 10488284
    Abstract: A tactile sensor includes a pressure transducer encapsulated in an elastic material that defines a contact surface and provides a transmission path that transmits contact forces or pressure distributions applied to the contact surface to the pressure transducer. The pressure transducer can be enclosed in a protective housing that defines a chamber around the transducer. The housing can include one or more openings that expose the chamber to the exterior pressure. The tactile sensor can be made by applying the elastic material in liquid form and exposing the housing to a vacuum that removes air inside the chamber allowing the liquid elastic material to flow into the chamber. Once cured, the elastic material defines a contact surface of the tactile sensor and serves to transfer contact forces applied to the contact surface to the transducer.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: November 26, 2019
    Assignee: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Leif Jentoft, Yaroslav Tenzer, Robert Howe
  • Patent number: 10433736
    Abstract: An implantable vessel fluid sensor is configured to sense at least one vessel fluid parameter of a vessel. The implantable vessel fluid sensor includes a tubular body having a first end portion. The first end portion is configured to be inserted into and to form a sealed junction with an open vessel end of the vessel. The implantable vessel fluid sensor further includes a sensor unit connected to the tubular body. The sensor unit includes a sensor region configured to be in direct contact with the vessel fluid in a sealed junction state. A minimum distance between the sensor region and the first end portion is at most 10 times an outer diameter of the first end portion of the tubular body.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 8, 2019
    Assignee: Infineon Technologies AG
    Inventors: Kamil Karlovsky, Bernhard Goller, Dirk Hammerschmidt, Horst Theuss, Carsten von Koblinski
  • Patent number: 10422712
    Abstract: Provided is a pressure detection device, wherein a pressure detection unit includes: a pressure detecting diaphragm; a second connection portion; and four strain resistance portions. One of either a first connection portion or the second connection portion is formed of a magnet, and the other of either the first connection portion or the second connection portion is formed of a magnet or a magnetic body. The first connection portion and the second connection portion are arranged such that the first connection portion and the second connection portion are attracted by a magnetic force in a state where a flow passage unit is mounted on the pressure detection unit. The four strain resistance portions are attached to a region of a second surface of a pressure detecting diaphragm other than a center portion.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: September 24, 2019
    Assignee: SURPASS INDUSTRY CO., LTD.
    Inventors: Kazuo Abo, Masamichi Kobayashi
  • Patent number: 10391227
    Abstract: A medico-technical measuring device for measuring a property of a fluid, such as pressure for pressure measurement, includes a line extending along a central longitudinal axis to guide a fluid, such as blood, within a longitudinal cavity delimited by a wall. A sensor unit has a sensor and measures a property of the fluid guided in the longitudinal cavity. The line is provided with a radial cavity inserted in the wall in a radial direction, in which the sensor unit is at least partially arranged, and which is integrated in the wall such that the sensor is in communication with the fluid. In this way, a measuring device can be provided that allows simple handling—in particular, in combination with a comparatively precise measurement—especially, pressure measurement. The measuring device may be produced according to a method and the measuring device may be used in a measuring method.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: August 27, 2019
    Assignee: Novalung GmbH
    Inventors: Andreas Maurer, Sven Filipon, Matthias Beurer
  • Patent number: 10350423
    Abstract: A device configured to deliver and deploy an implantable medical device (IMD) includes a handle assembly and a shaft extending distally therefrom. A device containment housing configured to accommodate the IMD is coupled to the distal region of the shaft. At least one of the shaft and device containment housing includes a compressible region that is configured to compress by an amount that is related to an applied force. The device may include a first position indicator and a second position indicator. An applied force causes the compressible region to compress by an amount that is related to the applied force, causing a change in distance between the first position indicator and the second position indicator and thus providing an indication of the applied force.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: July 16, 2019
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Allan Charles Shuros, Shibaji Shome, Brian Soltis, Brian L. Schmidt, Kevin John Stalsberg
  • Patent number: 10328200
    Abstract: A medical pump or the like provides for a multi-function flow monitor that provides for capacitive plates positioned on opposite sides of the IV line to sense changes in the electrical environment within the IV line to deduce IV line pressure, the presence of IV fluid bubbles, the presence of the IV line within the pump, and/or correct pump operation. Each of these conditions may be determined by different analysis of the capacitance across the capacitive plates.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: June 25, 2019
    Assignee: Zyno Medical, LLC
    Inventors: Mei Zhang, Chaoyoung Lee
  • Patent number: 10238833
    Abstract: A stabilized catheter tube for insertion into a body of a patient. The catheter tube includes a distal portion that remains stable during fluid infusion into the patient, thus reducing or eliminating whipping of the catheter distal tip. In one embodiment, the catheter tube defines at least one lumen and is formed from a tube material that defines a proximal portion and a distal portion of the catheter tube. The catheter tube is configured such that the arithmetic product of an elastic modulus and an area moment of inertia for the distal portion of the catheter tube is greater relative the arithmetic product of an elastic modulus and an area moment of inertia for the proximal portion of the tube. In one embodiment, the catheter tube is operably attached to an implantable access port and includes an enlarged distal portion relative a proximal portion of the catheter tube.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: March 26, 2019
    Assignee: C. R. Bard, Inc.
    Inventors: Kelly J. Christian, Daniel B. Blanchard, Ryan C. Patterson
  • Patent number: 10226630
    Abstract: Various techniques for measuring cardiac cycle length and pressure metrics based on pulmonary artery pressures are described. One example method described includes identifying a point within a derivative signal of a cardiovascular pressure signal without reference to electrical activity of a heart, initiating a time window from the identified point in the derivative signal, identifying a point within the cardiovascular signal within the time window, and determining at least one of a systolic pressure or diastolic pressure based on the identified point.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: March 12, 2019
    Assignee: Medtronic, Inc.
    Inventors: Saul E Greenhut, Robert T Taepke, David R Bloem, Yong K Cho, Donna M Salmi
  • Patent number: 10226193
    Abstract: Disclosed is a system that includes pressure sensors to assist in monitoring pressure at a selected location. Pressure sensors may be applied to or incorporated into catheters and/or shunts positioned within a patient. A monitoring system may then receive signals from the pressure sensors to monitor pressure at the location over time.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: March 12, 2019
    Assignee: Medtronic PS Medical, Inc.
    Inventor: Brad Jacobsen
  • Patent number: 10213186
    Abstract: An imaging apparatus for diagnosis is provided in which a simpler configuration enables an anatomical technique and a physiological technique to be used in combination. The imaging apparatus for diagnosis disclosed herein includes a first calculator for calculating a parameter indicating each deformation degree of measurement slit portions, by using a tomographic image including the measurement slit portions which are disposed at different positions in an axial direction of a probe unit and whose cross-sectional shape is deformed in response to a pressure applied to the probe unit, and a second calculator for calculating a value corresponding to a myocardial fractional flow reserve, based on the calculated parameter.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: February 26, 2019
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Koichi Inoue, Junya Furuichi
  • Patent number: 10206592
    Abstract: An implant delivery system includes an implant, such as a wireless sensor, a first sheath, and a second sheath. The sheaths extend from a proximal end of the implant delivery system, and at least said first sheath extends to a distal end of said implant delivery system. The first sheath is positioned at least partially within said second sheath. The implant is connected to an exterior surface of the first sheath and positioned near an end of the second sheath. The first sheath and said second sheath are movable with respect to one another to deploy said implant to a desired location.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: February 19, 2019
    Assignee: ENDOTRONIX, INC.
    Inventors: Harry Rowland, Mike Nagy, Kevin MacDonald, Alyssa Kurt, Andy Black, Andy Leopold
  • Patent number: 10010251
    Abstract: An intravascular sensor delivery device for measuring a physiological parameter of a patient, such as blood pressure, within a vascular structure or passage. In some embodiments, the device can be used to measure the pressure gradient across a stenotic lesion or heart valve. For example, such a device may be used to measure fractional flow reserve (FFR) across a stenotic lesion in order to assess the severity of the lesion. The sensor delivery device has a distal sleeve configured to pass or slide over a standard medical guidewire. Some distance back from the sensor and distal sleeve, the device separates from the guidewire to permit independent control of the sensor delivery device and the guidewire. The sensor delivery device can be sized to pass over different sizes of guidewires to enable usage in coronary and peripheral arteries, for example.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: July 3, 2018
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Dale R. Manstrom, Amy R. Raatikka, Robert F. Wilson, Edward R. Miller, Jung Kwon Pak
  • Patent number: 9995609
    Abstract: A signal processor receives a signal containing information about a sensor that is spirally wrapped at a known pitch or separation down a pipe having a flow; and determines a flow velocity based at least partly on the information contained in the signal received by applying an autocorrelation function that depends on a relationship between the time between a repeating pattern and the known pitch or separation of the spirally wrapped sensor. The signal processor provides a corresponding signal containing information about the flow velocity. The sensor includes a strain sensor, including a piezo-electric polymer strain sensor fabricated from PVDF, and/or two or more equally spaced spirally wound sensors. The determining includes correlating output signals of two or more equally spaced spirally wound sensors to determine a time delay, and determining the flow velocity based on the time delay and the known pitch or separation.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: June 12, 2018
    Assignee: CiDRA CORPORATE SERVICES, INC.
    Inventor: Mark R. Fernald
  • Patent number: 9891129
    Abstract: The invention relates to a system for measuring pressure, including a pressure sensor comprising: a deformable membrane on which is placed a resistive bridge able to deliver a bridge voltage representative of a deformation of the deformable membrane caused by a pressure applied to said deformable membrane; a system for limiting the deformation of the deformable membrane, able to limit the bridge voltage in the case of an over-pressure or an under-pressure on the deformable membrane; and an amplifying electronic circuit connected to the resistive bridge, able to deliver an output voltage depending on the bridge voltage; the limiting system and the electronic circuit are conjointly configured so that the output voltage makes it possible to distinguish the case of failure of the pressure sensor and/or of the electronic circuit from the case of an over-pressure or under-pressure on the deformable membrane.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: February 13, 2018
    Assignee: AUXITROL S.A.
    Inventor: Guillaume Longu
  • Patent number: 9839749
    Abstract: An ophthalmic surgical system enabling pressure measurements proximal to the eye may include an illumination probe having a probe tip configured for insertion through an incision in an eye of a patient. The probe tip may include a distal end of an optical fiber, wherein the distal end of the optical fiber includes a first reflective surface and a second reflective surface. The first and second reflective surfaces being separated by a cavity, wherein the second reflective surface is provided by a partially transparent wall forming an exterior surface of the distal end of the optical fiber.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: December 12, 2017
    Assignee: Novartis AG
    Inventors: Andrew David Johnson, Pooria Sharif Kashani
  • Patent number: 9835509
    Abstract: A pressure measurement system for use in blood circuits comprised of a pressure sensing pod and a force measurement device. The pressure sensing pod can include a flexible, moveable, fluid-impermeable diaphragm and can be formed via either a one-shot or a two-shot molding process. A mechanical engagement member of the force measurement device engages with a mechanical engagement feature of the diaphragm, and the engagement member is operative to move in concert with movement of the engagement feature of the diaphragm based on pressure variations with the pressure sensing pod. The force measurement device generates and outputs to a processor a signal based on detected force associated with movement of the engagement member.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: December 5, 2017
    Assignee: NXSTAGE MEDICAL, INC.
    Inventors: James M. Brugger, Dennis M. Treu, Jeffrey H. Burbank, Scott W. Newell, William J. Schnell, Kenneth E. Buckler
  • Patent number: 9823151
    Abstract: A sensor including a flexible channel defining a fluid flow path, the flexible channel configured to at least partially deflect when a force is imparted on the flexible channel. A gel layer is in contact with an outer surface of the flexible channel, and a transducer is in contact with the gel layer. Transducer is configured to generate an output signal that corresponds to an amount of strain imparted on the flexible channel.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: November 21, 2017
    Assignee: TRL Enterprises LLC.
    Inventors: Jeffrey Stokes, Thomas R. Londo
  • Patent number: 9812995
    Abstract: A piezoelectric power generator using wind power is provided. To elaborate, the piezoelectric power generator has a central axis unit with a charger, a piezoelectric film supporting frame engaged onto an outer circumference surface of the central axis unit, and a piezoelectric film having a pre-set area and at least one side engaged to at least one of one side part of the piezoelectric supporting frame and the central axis unit. In addition, the piezoelectric film supporting frame has a shape corresponding to a shape of an edge of the piezoelectric film to surround the edge of the piezoelectric film.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: November 7, 2017
    Assignee: SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARK
    Inventors: Jin Oh Kim, Dae Jong Kim
  • Patent number: 9629245
    Abstract: The invention provides a spacer for soldering comprising an elongate body having one end provided with a tapped hole and an opposite end provided with a transverse bearing surface having a smooth centering peg projecting therefrom, the peg has a longitudinal outer passage extending over at least a fraction of its length as far as the transverse bearing surface to enable molten solder to penetrate by capillarity as far as the transverse bearing surface. The invention also provides a module including such a spacer.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: April 18, 2017
    Assignee: Sagemcom Broadband SAS
    Inventor: Stephane Kohn
  • Patent number: 9615780
    Abstract: Methods and apparatus for providing data processing and control for use in a medical communication system are provided.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: April 11, 2017
    Assignee: ABBOTT DIABETES CARE INC.
    Inventor: Gary Hayter
  • Patent number: 9597151
    Abstract: An electrosurgical system includes an electrosurgical device, one or more temperature sensors associated with the electrosurgical device, a fluid-flow path leading to the electrosurgical device, and a flow-control device disposed in fluid communication with the fluid-flow path. The electrosurgical device includes a probe for directing energy to tissue. The electrosurgical system includes circuitry for detecting bending of the probe. The circuitry alerts the user of excessive bending by activating an alarm, such as an audible alarm, lighting one or more LEDs or other light sources, tactile feedback, or any other means. The electrosurgical system further includes a processor unit communicatively-coupled to the one or more temperature sensors and communicatively-coupled to the flow-control device. The processor unit is configured to control the flow-control device based on determination of a desired fluid-flow rate using one or more electrical signals outputted from the one or more temperature sensors.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: March 21, 2017
    Assignee: COVIDIEN LP
    Inventors: Joseph D. Brannan, Richard A. Willyard
  • Patent number: 9526454
    Abstract: A sensor guide wire for an intravascular measurement of at least one physiological or other variable in a living body may have a proximal region, a distal sensor region, and a tip region. The sensor guide wire may further comprise a sensor element arranged in the sensor region, and comprising a sensor portion for measuring the variable and to generate a sensor signal in response to the variable. Furthermore, a core wire, having a longitudinal axis A, and comprising at least a tip core wire portion, extends essentially along the tip region of the sensor guide wire. The tip core wire portion may further comprise a distal tip. At least a major part of the tip core wire portion is provided with a polymer layer essentially enclosing the at least major part. The distal tip of the tip core wire portion may further comprise an enlargement.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 27, 2016
    Assignee: ST. JUDE MEDICAL COORDINATION CENTER BVBA
    Inventors: Lisa Mellin, Karin Törne
  • Patent number: 9488459
    Abstract: A position sensor module (1) for control capsules (2), having a base carrier (3) which base carrier (3) has a first receiving space (4) in which is arranged a sensor chip (5) and a second receiving space (6) in which is arranged a plug contact strip (7) of a plug contact arrangement (8) which is connected to chip contacts (9) of the sensor chip (5), and a cover part (10) which covers the first receiving space (4) and the second receiving space (6). The cover part leaves open an access opening (11) to the plug contact strip (7), and fixes the sensor chip (5) and the plug contact arrangement (8) to the base carrier (3).
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: November 8, 2016
    Assignee: BorgWarner Inc.
    Inventor: Ralf Christmann
  • Patent number: 9464955
    Abstract: A structure comprising: a base; a diaphragm; a peripheral wall member of which one end surface is attached to a circumferential edge part of the diaphragm and the other end surface is attached on the top surface of the base to form an internal space together with the base and the diaphragm; a protruding part that protrudes from the top surface of the base; and a communicatively connecting path that extends from a bottom surface side of the base toward the diaphragm, and communicatively connects the internal space and the outside to each other to flow fluid, wherein on an outer lateral surface of the protruding part, an opening is formed in a part intersecting with an inner lateral surface of the communicatively connecting path, and a part of a fore end inner surface of the communicatively connecting path is formed in the protruding part.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: October 11, 2016
    Assignee: HORIBA STEC, Co. Ltd.
    Inventors: Hidetaka Yada, Sotaro Kishida, Takehisa Hataita
  • Patent number: 9435706
    Abstract: A membrane for a pressure dome is configured to cooperate with a pressure sensor, and includes a resilient circular wall and a circular rim. The resilient circular wall is configured to close one side of the pressure dome so as to define a partition between the inside of the pressure dome and the outside. The circular rim is configured to be housed in a main body of the pressure dome. The membrane is configured such that the resilient circular wall, when there is no difference between the pressures acting respectively on the inner surface and on the outer surface, has an outwardly convex form.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: September 6, 2016
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Massimo Fini, Reinhold Reiter, Luca Donarini
  • Patent number: 9430680
    Abstract: A deformable tamper sensor and tamper resistant electronic system is operable to detect opening of an enclosure and perform actions responsive to the detection. Movable elements within the tamper sensor are held in position when the sensor is compressed and define a multi-bit sensor value. Transitioning the sensor from a compressed to a non-compressed state non-destructively provides a new sensor value through movement of one or more elements.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: August 30, 2016
    Assignee: Seagate Technology LLC
    Inventor: Dmitry Obukhov
  • Patent number: 9395261
    Abstract: A multi-range on-site full-automatic pressure and electric signal calibration instrument includes a housing, a power switch, a plurality of interfaces, a display, a keyboard, a gas pressure generation unit, a power supply unit, a pressure detection unit, a gas pressure control unit and an electric signal detection unit. A pressure output port of the pressure control unit is in parallel connection with pressure connectors used for installation of a plurality of pressure standard devices with different ranges and a calibrated gauge. The pressure control unit is in signal connection with the pressure standard device. The electric signal detection unit is in signal connection with the pressure control unit and the calibrated gauge; and the power supply unit can supply power by batteries. The calibration instrument does not need to be externally connected with a gas cylinder or an alternating current power supply.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: July 19, 2016
    Assignee: BEIJING CONST INSTRUMENT TECHNOLOGY INC.
    Inventor: Weili Jiang
  • Patent number: 9394895
    Abstract: A multi-range on-site full-automatic pressure calibration instrument includes a housing, a power switch, a plurality of interfaces, a display, a keyboard, a gas pressure generation unit, a power supply unit, a pressure detection unit and a gas pressure control unit. The gas pressure generation unit is a gas pressurizing pump communicated with atmosphere. A pressure output port of the pressure control unit is in parallel connection with pressure connectors used for installation of a plurality of pressure standard devices with different ranges and a calibrated gauge. The pressure control unit is in signal connection with the pressure standard device. The power supply unit can supply power by batteries. The calibration instrument does not need to be externally connected with a gas cylinder or an alternating current power supply and can automatically generate a gas pressure and generate an accurate standard pressure.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: July 19, 2016
    Assignee: BEIJING CONST INSTRUMENT TECHNOLOGY INC.
    Inventor: Weili Jiang
  • Patent number: 9375180
    Abstract: A pressure transducer mounting device may include a support member and a pressure transducer holder. In use, the support member may attach to a support surface, such as a housing of a power injection device, while the pressure transducer holder is moveably connected to the support member. The pressure transducer holder may expand open to receive one of a plurality of different sized pressure transducers and bias closed to hold a received one of the plurality of different sized pressure transducers. In addition, the pressure transducer holder may move relative to the support member to one of a plurality of different vertically elevated positions. The pressure transducer mounting device may accommodate different pressure transducers, providing a universal mounting device that can adapt to different medical provider preferences and different pressure transducer sourcing options.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: June 28, 2016
    Assignee: ACIST MEDICAL SYSTEMS, INC.
    Inventors: John Russell, William J. Taylor
  • Patent number: 9322678
    Abstract: A wireless pressure sensor comprising a protective covering positionable over the sensor's antenna portion is described. The protective covering comprises a body having an annular sidewall that extends from a proximal end to a distal end and is composed of a fluoroelastomer material. A cavity resides within the body extending through the proximal end to a distal end sidewall positioned perpendicular to the annular sidewall. The protective covering further comprises at least one annular recess intermediate at least two annular ridges that reside along an interior surface at the proximal end of the covering. These series of annular ridges and recesses form a removably tight seal around the exterior surface of the sensor that minimizes the migration of corrosive gases and fluids to the exterior surface of the sensor.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: April 26, 2016
    Assignee: Electrochem Solutions, Inc.
    Inventors: James K. Stawitzky, Jorge Marin, George Cintra
  • Patent number: 9247909
    Abstract: A guidewire is disclosed that is constructed using tubular members that create a hollow lumen that runs from the proximal end of the guidewire to a window towards the distal end of the wire. This internal lumen is filled with a fluid that allows pressure exerted at the window to exert pressure at the proximal end of the guide wire proportional to the pressure exerted at the window. This pressure exerted at the proximal end of the guidewire is measured using a pressure transducer external of the guidewire. The pressure transducer converts the measured pressure into an electrical signal that is proportional to the pressure at the window. The electrical signal is manipulated to correct for errors that are due to the pressure signal traveling though the inner lumen of the guidewire to ensure the electrical signal matches the pressure exerted at the window.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: February 2, 2016
    Assignee: Volcano Corporation
    Inventor: Douglas E. Meyer, Jr.
  • Patent number: 9241641
    Abstract: Methods and sensor delivery devices for monitoring a fluid pressure within a vascular structure, the devices including an elongated sheath sized for sliding along a guidewire, a sensor assembly including a fiber optic sensor, a housing surrounding the sensor, a first cavity between the distal end of the sensor and a distal aperture of the housing, a filler extending from at least the distal end of the housing distally and tapering inward toward the outer surface of the sheath, a second cavity in the filler with an opening at the outer surface of the filler and adjoining the distal aperture of the housing, and an optical fiber. The sensor delivery device may also include an outer layer that partially covers the second cavity with an aperture over the opening of the second cavity.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 26, 2016
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Jason F. Hiltner, Simon Furnish, James Lamar Gray, II, William K. Dierking, Alan Evans
  • Patent number: 9227008
    Abstract: A fluid container for a medical fluid dispensing device, comprises a rigid body (3) for delimiting with the inside part of its wall a volume of the medical fluid, and a membrane (5) that covers at least an opening of the rigid body thereby creating a fluid tight lid, the opening corresponding to a measurement area, and the membrane further covers a portion of an outside part of the rigid body's wall. The membrane comprises a flexible measurement part (11) corresponding to the opening of the rigid body, an attachment part (13) that is fixed to the rigid body, and a second part (12) that connects the flexible measurement part to the attachment part, and which comprises a rigid part (14), an upper part of which is connected to the flexible measurement part, and the rigid part further comprising a sealing surface (18), and a deformable part (15) which connects the rigid part to the attachment part.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: January 5, 2016
    Assignee: DEBIOTECH S.A.
    Inventors: Olivier Magnenat, Reto Cueni
  • Patent number: 9226667
    Abstract: A blood pressure monitor, particularly of the type having an inflatable cuff communicating with a pressure sensor and suitable for home use, may be calibrated by applying a sealed canister containing gas at a known pressure to a port so as to apply the known pressure to the pressure sensor, and comparing a pressure signal from the pressure sensor with the known pressure so as to determine a calibration error of the sensor and/or adjust the calibration of the sensor, e.g. by electronically adjusting the sensor. Several canisters may be used to calibrate the sensor across a range of pressures, each canister having a different known pressure. Each canister is preferably ruptured when attached to the port and is not re-usable, and may comprise an identifier such as an electronically readable identifier which is stored in a memory in association with the value of the known pressure within the canister.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: January 5, 2016
    Inventor: Yury Grotov
  • Patent number: 9173636
    Abstract: An ultrasound probe including: an ultrasound transmission/reception portion; a cable; a housing; a hole portion of the housing; an insulation pipe having a proximal end side exposed outside the housing; an insulation tube covering an outer circumference of an exposed region of the insulation pipe and an outer circumference of the cable; an adhesive located between the outer circumference of the exposed region and a distal end side region of the insulation tube and configured to adhere the insulation pipe and the insulation tube to each other; and a sticky member disposed between the exposed region and the distal end side region together with the adhesive.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: November 3, 2015
    Assignee: OLYMPUS CORPORATION
    Inventor: Kei Irie
  • Patent number: 9072435
    Abstract: Adaptive attachments used in combination with a blood pressure cuff enable various blood pressure measurements to be taken in a hospital or other setting having various single and/or dual lumen manual or electronic blood pressure measuring equipment with a single, patient-worn cuff.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: July 7, 2015
    Assignee: WELCH ALLYN, INC.
    Inventors: Thaddeus J. Wawro, Raymond A. Lia
  • Patent number: 9050417
    Abstract: A membrane for a pressure dome is configured to cooperate with a pressure sensor, and includes a resilient circular wall and a circular rim. The resilient circular wall is configured to close one side of the pressure dome so as to define a partition between the inside of the pressure dome and the outside. The circular rim is configured to be housed in a main body of the pressure dome. The membrane is configured such that the resilient circular wall, when there is no difference between the pressures acting respectively on the inner surface and on the outer surface, has an outwardly convex form.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: June 9, 2015
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Massimo Fini, Reinhold Reiter, Luca Donarini
  • Publication number: 20150141854
    Abstract: The disclosure includes an apparatus including an elongated assembly, at least a portion of which is sized, shaped, or otherwise configured to be inserted into a human body to measure a physiological parameter at an internal location within the body. The elongated assembly includes an elongated member having a first length and an outer surface, a coil disposed about at least a portion of the elongated member, the coil having a second length, and at least one stand-off member positioned between the outer surface of the elongated member and the coil, where the at least one member is configured to prevent the coil from contacting an optical fiber positioned between the elongated member and the coil.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 21, 2015
    Inventors: Michael J. Eberle, Diana Margaret Tasker, Howard Neil Rourke, David J. Spamer
  • Publication number: 20150105674
    Abstract: The fluid delivery system includes a pressurizing device for delivering a pressurized injection fluid, a low pressure fluid delivery system, and a pressure isolation mechanism adapted for fluid communication with the pressurizing device and low pressure fluid delivery system. The pressure isolation mechanism includes a housing defining an inlet port, an isolation port, and an internal cavity. The housing defines a seal seat in the internal cavity between the inlet port and isolation port. A valve member is disposed in the internal cavity. The valve member is free floating in the internal cavity and is adapted to engage the seal seat. The valve member has an open position permitting fluid communication between the inlet port and isolation port, and is fluid flow responsive to fluid flow in the inlet port to engage the seal seat and attain a closed position preventing fluid flow between the inlet port and isolation port.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 16, 2015
    Inventors: Michael A. Spohn, John A. Haury
  • Patent number: 8974398
    Abstract: A transmitter unit with an attachable energy source is provided for a sensor guidewire. The transmitter unit is adapted to be connected to a proximal end of a sensor guidewire provided, at its distal end, with a sensor to measure a physiological parameter inside a patient. In some embodiments, the transmitter unit is adapted to wirelessly communicate by a communication signal with a communication unit, arranged in connection with an external device, in order to transfer measured physiological data to the external device. The attachable energy source can be a battery pack or battery holder provided with connecting electrical connecting surfaces. Preferably, the connection is protected from penetrating fluids by a protective seal.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: March 10, 2015
    Assignee: St. Jude Medical Coordination Center BVBA
    Inventor: Leif Smith
  • Publication number: 20150032007
    Abstract: System for indicating a possibility a cardiac tamponade occurring in a patient, comprising: —a right atrium pressure sensor, configured for measuring a right atrium pressure in a right atrium of the patient; —an intra pericardial pressure sensor, configured for measuring an intra pericardial pressure in a portion of an intra-pericardial space of the patient; —a processing device that is operatively connected to the pressure sensors, is provided with a predetermined statistical distribution of pressure versus tamponade probabilities, and is configured for: —determining a trans-mural pressure difference between the right atrium pressure and the intra pericardial pressure; —comparing the trans-mural pressure difference with the statistical distribution, and —indicating the possibility of cardiac tamponade occurrence, based on the trans-mural pressure difference comparison.
    Type: Application
    Filed: February 12, 2013
    Publication date: January 29, 2015
    Inventors: Egbert Jan Constant Ottevanger, Rienk Rienks, Wouter Matthijs Muijs Van De Moer
  • Patent number: 8862204
    Abstract: A medical device configured for diagnosis or treatment of tissues within a body is provided. The device includes an elongate, deformable member configured to be received within a lumen in the body and having proximal and distal ends. A position sensor is disposed at the distal end. In one embodiment, a conductor is wound about the member. The conductor is connected to the position sensor and has a first winding pitch over a first portion of the deformable member and a second winding pitch, different from the first winding pitch, over a second portion of the deformable member. In another embodiment, the member defines a neutral longitudinal axis extending between the proximal and distal ends. A conductor extending between the proximal and distal ends is connected to the position sensor at a connection node on the neutral axis.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: October 14, 2014
    Assignee: MediGuide Ltd.
    Inventors: Lior Sobe, Ran Sela
  • Patent number: 8857264
    Abstract: A catheter die is provided and includes an elongate body having first and second opposing end portions and an end face at the first one of the first and second opposing end portions. The elongate body defines a cavity within the first end portion with an interior facing surface of the cavity disposed to extend alongside at least a portion of the first end face. At least one or more piezoresistive pressure sensors are operably disposed proximate to the cavity.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: October 14, 2014
    Assignee: Amphenol Thermometrics, Inc.
    Inventor: Sisira Kankanam Gamage
  • Patent number: 8840541
    Abstract: An implantable device monitors a pressure of fluid within an inflatable portion of a gastric band. The implantable device comprises a tube defining a lumen, and a pressure sensor positioned within at least one of the lumen or the tube. The pressure sensor is configured to sense the pressure of the fluid within the inflatable portion of the gastric band. The pressure sensor is also configured to transmit a pressure signal based on the pressure to a microcontroller, which transmits the pressure signal to a remote control device. The pressure sensor confers strain relief upon at least a portion of the tube, and the pressure sensor shields at least a portion of the tube from puncture by a needle.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: September 23, 2014
    Assignee: Apollo Endosurgery, Inc.
    Inventors: Sean Snow, Janel Birk