Patents by Inventor Leif Smith

Leif Smith has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150044146
    Abstract: The invention provides recombinant Streptococcus mutans strains that can be used to improve oral health. An embodiment of the invention provides a method of reducing the incidence or severity of dental caries in a dental caries-susceptible host comprising administering orally to the host an isolated recombinant S. mutans strain of the invention in an amount effective for replacement of dental caries-causing S. mutans host strains in the oral cavity of the host. The isolated recombinant S. mutans strain 10 can be contained in a mouthwash, toothpaste, chewing gum, floss, chewable tablet, food, or beverage.
    Type: Application
    Filed: February 22, 2013
    Publication date: February 12, 2015
    Inventors: Jeffrey D. Hillman, James Leif Smith, Shawanda R. Wilson-Stanford
  • Publication number: 20140147416
    Abstract: Occidiofungin is a cyclic nonribosomally synthesized antifungal peptide with submicromolar activity. This invention is directed to compositions enriched for particular occidiofungin diastereomers/conformers, methods of making compositions enriched for particular diastereomers/conformers and microorganisms suitable for producing enriched compositions of particular diastereomers/conformers. Methods of treating fungal infections or plants infected by fungi are also provided.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 29, 2014
    Inventors: JAMES LEIF SMITH, AKSHAYA RAVICHANDRAN, SHIEN LU, GANYU GU
  • Patent number: 8641633
    Abstract: A pressure sensor wire assembly measures pressure inside a body of a patient. The assembly comprises a pressure sensor element for measuring pressure and to generate a pressure sensor signal representative of the pressure, and a pressure sensor wire having the pressure sensor element at its distal portion, and adapted to be inserted into the body in order to position the sensor element within the body. A sensor signal adapting circuitry is an integrated part of the assembly, wherein the pressure sensor signal is applied to the adapting circuitry which is adapted to automatically generate an output pressure signal, related to the sensor signal, in a standardized format such that the measured pressure is retrievable by an external physiology monitor. The assembly further comprises an external pressure sensor to measure the pressure outside the patient's body and to generate external pressure values in dependence thereto.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: February 4, 2014
    Assignee: Radi Medical Systems AB
    Inventor: Leif Smith
  • Patent number: 8579832
    Abstract: There is a sensor guide wire (1) for intravascular measurements of physiological variables in a living body. The sensor guide wire (1) comprises at least two elongate sections, a first tubular elongate section (2) being tubular in the longitudinal direction of the sensor guide wire (1), and a second elongate section (3) that is adapted to be inserted a predetermined distance (5) into said first tubular section (2), a sensor element (10) provided in the distal part of said sensor guide wire (1), for measuring the physiological variable and to generate a sensor signal in response to said variable, at least one signal transmitting cable connected to the sensor element (10) to transmit sensor signals to a male connector provided in the proximal part of said sensor guide wire (1).
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: November 12, 2013
    Assignee: St. Jude Medical Systems AB
    Inventors: Pär Von Malmborg, Leif Smith
  • Publication number: 20130231871
    Abstract: A multifunctional breath analyzer includes a receptor unit for receiving a breath sample from a test subject, a sensing unit providing a signal corresponding to the concentration of at least one volatile substance within the sample, elements for providing a signal indicative of the dilution of the breath sample, and an analyzing unit/processing unit for the identification and quantification of the volatile substance of the breath sample. The signal processing unit is configured to perform at least two different calculations for the quantification, and the signal processing unit is also configured to automatically display the result of a selected calculation, the selection being based on the signal indicating dilution.
    Type: Application
    Filed: October 6, 2011
    Publication date: September 5, 2013
    Applicant: HOK Instrument AB
    Inventors: Bertil Hok, Lars Tenerz, Leif Smith, Annika Kaisdotter Andersson
  • Publication number: 20120271178
    Abstract: A pressure sensor wire assembly measures pressure inside a body of a patient. The assembly comprises a pressure sensor element for measuring pressure and to generate a pressure sensor signal representative of the pressure, and a pressure sensor wire having the pressure sensor element at its distal portion, and adapted to be inserted into the body in order to position the sensor element within the body. A sensor signal adapting circuitry is an integrated part of the assembly, wherein the pressure sensor signal is applied to the adapting circuitry which is adapted to automatically generate an output pressure signal, related to the sensor signal, in a standardized format such that the measured pressure is retrievable by an external physiology monitor. The assembly further comprises an external pressure sensor to measure the pressure outside the patient's body and to generate external pressure values in dependence thereto.
    Type: Application
    Filed: June 27, 2012
    Publication date: October 25, 2012
    Inventor: Leif SMITH
  • Patent number: 8216151
    Abstract: A pressure sensor wire assembly measures pressure inside a body of a patient. The assembly comprises a pressure sensor element for measuring pressure and to generate a pressure sensor signal representative of the pressure, and a pressure sensor wire having the pressure sensor element at its distal portion, and adapted to be inserted into the body in order to position the sensor element within the body. A sensor signal adapting circuitry is an integrated part of the assembly, wherein the pressure sensor signal is applied to the adapting circuitry which is adapted to automatically generate an output pressure signal, related to the sensor signal, in a standardized format such that the measured pressure is retrievable by an external physiology monitor. The assembly further comprises an external pressure sensor to measure the pressure outside the patient's body and to generate external pressure values in dependence thereto.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: July 10, 2012
    Assignee: Radi Medical Systems AB
    Inventor: Leif Smith
  • Publication number: 20120172731
    Abstract: Rapid exchange guide unit comprising an elongated support member 3, and a guide wire member (11) provided with a guide wire lumen (13) having a distal guide wire opening (15) and a proximal guide wire opening (17), the guide wire lumen is arranged close to the distal end of said elongated support member, and is adapted to receive a guide wire. The rapid exchange guide unit further comprises at least one sensor (19) arranged close to the distal end of the elongated support member, and being adapted to measure a parameter in a living body, and to generate a sensor signal in dependence of the measured parameter. The sensor signal is applied to a signal processing unit adapted to process the sensor signal and to generate a processed sensor signal.
    Type: Application
    Filed: September 14, 2010
    Publication date: July 5, 2012
    Inventor: Leif Smith
  • Patent number: 7998089
    Abstract: A transmitter unit with a detachable 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 detachable energy source can be a battery pack provided with connecting electrical connecting surfaces. Preferably, the connection is protected from penetrating fluids by a protective seal.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: August 16, 2011
    Assignee: Radi Medical Systems AB
    Inventor: Leif Smith
  • Patent number: 7967761
    Abstract: A sensor and guide wire assembly (21; 41; 61; 81) for intravascular measurements of a physiological variable in a living body includes a sensor element (22; 42; 62; 82) mounted at a distal sensor portion (23; 43; 63; 83) of a guide wire (24; 44; 64; 84), wherein the sensor portion exhibits a maximal cross-sectional dimension which is larger than a maximal cross-sectional dimension of guide wire portions (28, 30; 48, 50; 68, 70) located proximally of the sensor portion.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: June 28, 2011
    Assignee: Radi Medical Systems AB
    Inventor: Leif Smith
  • Patent number: 7938846
    Abstract: A femoral compression device (1) for compressive bearing against the femoral artery of a patient, comprising a base plate (2), an inflatable air cushion (4), and an electronic manometer (8) connected to the inflatable air cushion for measurement of the current pressure difference between the pressure prevailing inside the inflatable air cushion and the ambient air pressure. The femoral compression device can further comprise a mechanical device (11; 46) which prevents an air opening leading to the inflatable air cushion from being closed before the manometer is zeroed.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: May 10, 2011
    Assignee: Radi Medical Systems AB
    Inventors: Dan Åkerfeldt, Leif Smith, Marie Lindström, Tobias Adenmark
  • Publication number: 20100318000
    Abstract: The present invention relates to a sensor guide wire for intravascular measurements of physiological variables in a living body, having a proximal shaft region, a flexible region and a distal sensor region. The sensor guide wire comprises, a sensor element provided in the sensor region, for measuring the physiological variable and to generate a sensor signal in response to said variable, a signal transmitting micro cable connected to the sensor element, and running along the sensor guide wire to the shaft region. The guide wire consists of, at least along the length of the flexible region, a guide wire tube that encloses the signal transmitting micro cable.
    Type: Application
    Filed: October 24, 2008
    Publication date: December 16, 2010
    Inventors: Pär Von Malmborg, Leif Smith
  • Publication number: 20100268038
    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: Application
    Filed: August 22, 2008
    Publication date: October 21, 2010
    Inventor: Leif Smith
  • Publication number: 20100222661
    Abstract: There is a sensor guide wire (1) for intravascular measurements of physiological variables in a living body. The sensor guide wire (1) comprises at least two elongate sections, a first tubular elongate section (2) being tubular in the longitudinal direction of the sensor guide wire (1), and a second elongate section (3) that is adapted to be inserted a predetermined distance (5) into said first tubular section (2), a sensor element (10) provided in the distal part of said sensor guide wire (1), for measuring the physiological variable and to generate a sensor signal in response to said variable, at least one signal transmitting cable connected to the sensor element (10) to transmit sensor signals to a male connector provided in the proximal part of said sensor guide wire (1).
    Type: Application
    Filed: October 24, 2008
    Publication date: September 2, 2010
    Inventors: Pär Von Malmborg, Leif Smith
  • Publication number: 20100061518
    Abstract: The invention is directed to a miniaturized source (10; 20; 40; 80) of ionizing electromagnetic radiation, comprising a first electrode (11; 21; 41, 42; 81), which at least temporarily can function as a cathode, and a second electrode (12; 22; 43, 44, 45; 82), which at least temporarily can function as an anode, a first conductor (13; 23; 46, 47; 83) connected to the first electrode, and a second conductor (14; 24; 48, 49, 50; 84) connected to the second electrode. According to one embodiment, the first electrode and at least a portion of the first conductor are provided on a substrate (15; 10 25; 51; 85). According to another embodiment, also the second electrode and at least a portion of the second conductor are provided on the substrate. In all embodiments, the electrodes are arranged such that the electric field between the electrodes essentially is parallel to the surface of the substrate.
    Type: Application
    Filed: September 10, 2008
    Publication date: March 11, 2010
    Inventor: Leif SMITH
  • Publication number: 20090124880
    Abstract: A transmitter unit with a detachable 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 detachable energy source can be a battery pack provided with connecting electrical connecting surfaces. Preferably, the connection is protected from penetrating fluids by a protective seal.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 14, 2009
    Inventor: Leif SMITH
  • Publication number: 20090118643
    Abstract: The invention relates to a sensor and guide wire assembly (21) for intravascular measurements of physiological variables in a living body, comprising a core wire (22), a first coil (23), a jacket (24), and a second coil (25). The jacket (24) comprises a first end portion (24a), which is crimped onto the core wire (22) and over which a portion of the first coil (23) is threaded, and a second end portion (24b), which is crimped onto the core wire (22) and over which a portion of the second coil (25) is threaded.
    Type: Application
    Filed: June 1, 2005
    Publication date: May 7, 2009
    Inventors: Leif Smith, Ola Hammarstrom, Per Egnelov, Dan Akerfeldt
  • Publication number: 20090082678
    Abstract: Pressure sensor wire assembly for measuring pressure inside a body of a patient, the assembly comprises a pressure sensor element for measuring pressure and to generate a pressure sensor signal in response of said pressure, and a pressure sensor wire having said pressure sensor element at its distal portion, and adapted to be inserted into the body in order to position the sensor element within the body. In addition is arranged a sensor signal adapting circuitry, being an integrated part of said assembly, wherein the pressure sensor signal is applied to the adapting circuitry that is adapted to automatically generate an output pressure signal, related to the sensor signal, in a standardized format such that the measured pressure is retrievable by an external physiology monitor.
    Type: Application
    Filed: September 25, 2007
    Publication date: March 26, 2009
    Inventor: Leif Smith
  • Patent number: 7472601
    Abstract: The invention relates to a sensor and guide wire assembly for intravascular measurements within a living body, wherein a sensor element, which is arranged at a distal portion of a guide wire, comprises at least one piezoresistive nanowire.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: January 6, 2009
    Assignee: Radi Medical Systems AB
    Inventors: Lars Tenerz, Leif Smith
  • Publication number: 20080319328
    Abstract: A femoral compression device (1) for compressive bearing against the femoral artery of a patient, comprising a base plate (2), an inflatable air cushion (4), and an electronic manometer (8) connected to the inflatable air cushion for measurement of the current pressure difference between the pressure prevailing inside the inflatable air cushion and the ambient air pressure. The femoral compression device can further comprise a mechanical device (11; 46) which prevents an air opening leading to the inflatable air cushion from being closed before the manometer is zeroed.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 25, 2008
    Inventors: Dan AKERFELDT, Leif Smith, Marie Lindstrom, Tobias Adenmark