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    82.
    发明专利
    未知

    公开(公告)号：AT435494T

    公开(公告)日：2009-07-15

    申请号：AT02746212

    申请日：2002-07-12

    Applicant: STICHTING TECH WETENSCHAPP ,  UNIV AMSTERDAM

    Inventor： BRUECK EKKEHARD ,  TEGUSI OJIYED ,  DE BOER FRANK

    IPC: H01F1/01 ,  H01F1/33 ,  C09D5/23 ,  F25B21/00

    Abstract: A material that can be used for magnetic refrigeration, wherein the material substantially has the general formula (A Y B 1-y ) 2+delta C 1-x D x ) wherein A is selected from Mn and Co; B is selected from Fe and Cr; C and D are different and are selected from P, As, B, Se, Ge, Si and Sb; x and y each is a number in the range 0-1; and delta is a number from (-0.1)-(+0.1).

    A METHOD, A COMPUTER PROGRAM AND AN APPARATUS FOR QUANTIFICATION OF A DEGREE OF OBSTRUCTION IN A LIQUID PASSAGEWAY
    85.
    发明专利
    A METHOD, A COMPUTER PROGRAM AND AN APPARATUS FOR QUANTIFICATION OF A DEGREE OF OBSTRUCTION IN A LIQUID PASSAGEWAY 未知

    公开(公告)号：CA2690798A1

    公开(公告)日：2008-12-18

    申请号：CA2690798

    申请日：2008-06-16

    Applicant: UNIV ERASMUS MEDICAL CT ,  STICHTING TECH WETENSCHAPP

    Inventor： IDZENGA TIM ,  PEL JOHANNES JACOB MIENT ,  VAN MASTRIGT ROBERT

    IPC: A61B5/20

    Abstract: The invention relates to a method for quantification of a degree of obstruction in a liquid passageway, notably in a male urethra. Data related to sonic waves generated by a liquid passing the obstruction may be accessed from a suitable file, or, alternatively may be directly obtained as a result of a measuring step 2. For determining the degree of obstruction of the urethra the measuring step 2 may be performed by arranging at least one sensor, notably a microphone, in the area of the perineum for detecting sonic waves generated by a liquid (urine) passing the obstruction. At the step 5 the power spectrum of the obtained data related to the sonic waves is calculated, after which a suitable feature 6a, 6b, or 6c representative of the power spectrum is selected. Preferable embodiments of the feature comprise a weighted average frequency of the power spectrum, a standard deviation of the power spectrum, or a skewness of the power spectrum, discussed above. The degree of obstruction may be quantified at step 7 by comparing the selected feature with a reference value 8 for the said feature. Preferably, the reference feature is obtained using a calibration experiment in a suitable phantom.

    HIGH LIGHT YIELD FAST SCINTILLATOR
    86.
    发明专利
    HIGH LIGHT YIELD FAST SCINTILLATOR 未知

    公开(公告)号：IL189932D0

    公开(公告)日：2008-08-07

    申请号：IL18993208

    申请日：2008-03-04

    Applicant: STICHTING TECH WETENSCHAPP ,  UNIV BERNE

    IPC: G01T20100101

    Abstract: The invention concerns a material comprising a compound of formula Pr(1-x-y)LnyCexX3 wherein—Ln is chosen from the elements or mixtures of at least two elements, of the group: La, Nd, Pm, Sm, Eu, Gd, Y, —X is chosen from the halides or mixtures of at least two halides, of the group: Cl, Br, I, —x is above 0.0005 and is lower than 1, —y is from 0 to less than 1 and—x+y) is less than 1, and its use as scintillation detector, for example in PET scanner with time of flight capabilities.

    Intravasular ultrasound techniques
    87.
    发明专利
    Intravasular ultrasound techniques 未知

    公开(公告)号：GB2445322B

    公开(公告)日：2008-08-06

    申请号：GB0806499

    申请日：2004-08-13

    Applicant: STICHTING TECH WETENSCHAPP ,  BRACCO RESEARCH SA

    Inventor： STEEN ANTONIUS FRANCISCUS WILH ,  GOERTZ DAVID ERIC ,  FRIJLINK MARTIJN EGBERT

    IPC: A61B8/12 ,  A61B8/00

    Abstract: Intravascular ultrasound techniques provide for intravascular imaging using contrast agents and nonlinear techniques. An ultrasound imaging device for detecting internal properties of a target body comprises an ultrasound transducer positioned at a distal end portion of a catheter, for transmitting excitation pulses and for receiving echo signals. A signal processor analyses echo signals at harmonics and/or subharmonics of the transmit frequency. The catheter may include a contrast agent delivery conduit extending along the catheter, the delivery conduit having an exit orifice proximal to the ultrasound transducer. The device may discriminate between echo signals respectively arising from interaction with tissue and from the interaction with contrast agent. The device may generate an image of the site of interest using non-linear components of the received ultrasound echo signals.

    Harmonic/sub-harmonic imaging with IVUS catheter
    88.
    发明专利
    Harmonic/sub-harmonic imaging with IVUS catheter 未知

    公开(公告)号：GB2445322A

    公开(公告)日：2008-07-02

    申请号：GB0806499

    申请日：2004-08-13

    Applicant: STICHTING TECH WETENSCHAPP ,  BRACCO RESEARCH SA

    Inventor： STEEN ANTONIUS FRANCISCUS WILH ,  GOERTZ DAVID ERIC ,  FRIJLINK MARTIJN EGBERT

    IPC: A61B8/12 ,  A61B8/00

    Abstract: Intravascular ultrasound techniques provide for intravascular imaging using contrast agents and nonlinear techniques. An ultrasound imaging device for detecting internal properties of a target body comprises an ultrasound transducer positioned at a distal end portion of a catheter, for transmitting excitation pulses and for receiving echo signals. A signal processor analyses echo signals at harmonics and/or subharmonics of the transmit frequency. The catheter may include a contrast agent delivery conduit extending along the catheter, the delivery conduit having an exit orifice proximal to the ultrasound transducer. The device may discriminate between echo signals respectively arising from interaction with tissue and from the interaction with contrast agent. The device may generate an image of the site of interest using non-linear components of the received ultrasound echo signals. The contrast agent may include particles, at least a 1% volume fraction of which have diameters less than 1.5 microns. The contrast agent may selectively locate to the microvessels vasa vasorum.

    Intravasular ultrasound techniques
    89.
    发明专利
    Intravasular ultrasound techniques 未知

    公开(公告)号：GB0806499D0

    公开(公告)日：2008-05-14

    申请号：GB0806499

    申请日：2004-08-13

    Applicant: STICHTING TECH WETENSCHAPP ,  BRACCO RESEARCH SA

    IPC: A61B8/00 ,  A61B8/12

    Abstract: Intravascular ultrasound techniques provide for intravascular imaging using contrast agents and nonlinear techniques. An ultrasound imaging device for detecting internal properties of a target body comprises an ultrasound transducer positioned at a distal end portion of a catheter, for transmitting excitation pulses and for receiving echo signals. A signal processor analyses echo signals at harmonics and/or subharmonics of the transmit frequency. The catheter may include a contrast agent delivery conduit extending along the catheter, the delivery conduit having an exit orifice proximal to the ultrasound transducer. The device may discriminate between echo signals respectively arising from interaction with tissue and from the interaction with contrast agent. The device may generate an image of the site of interest using non-linear components of the received ultrasound echo signals.

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