WO2005044085A3 - System and methods for detecting foreign objects after surgery - Google Patents

System and methods for detecting foreign objects after surgery Download PDF

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Publication number
WO2005044085A3
WO2005044085A3 PCT/US2004/035774 US2004035774W WO2005044085A3 WO 2005044085 A3 WO2005044085 A3 WO 2005044085A3 US 2004035774 W US2004035774 W US 2004035774W WO 2005044085 A3 WO2005044085 A3 WO 2005044085A3
Authority
WO
WIPO (PCT)
Prior art keywords
foreign objects
surgery
methods
detecting foreign
foreign object
Prior art date
Application number
PCT/US2004/035774
Other languages
French (fr)
Other versions
WO2005044085A2 (en
Inventor
Joe Paul Tupin Jr
Josh Shachar
Original Assignee
Sandel Medical Ind Llc
Joe Paul Tupin Jr
Josh Shachar
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sandel Medical Ind Llc, Joe Paul Tupin Jr, Josh Shachar filed Critical Sandel Medical Ind Llc
Publication of WO2005044085A2 publication Critical patent/WO2005044085A2/en
Publication of WO2005044085A3 publication Critical patent/WO2005044085A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/0507—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  using microwaves or terahertz waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A61B5/061—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A61B5/065—Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe
    • A61B5/067—Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe using accelerometers or gyroscopes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04—Systems determining presence of a target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
    • G01S13/9021—SAR image post-processing techniques
    • G01S13/9027—Pattern recognition for feature extraction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G01S7/411—Identification of targets based on measurements of radar reflectivity
    • G01S7/412—Identification of targets based on measurements of radar reflectivity based on a comparison between measured values and known or stored values
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Veterinary Medicine (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Electromagnetism (AREA)
  • Human Computer Interaction (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A radar system uses an array of transceivers combined with signal processing techniques to provide a new type of medical imaging technology. The system detects foreign objects such as sponges, surgical tools, etc., based on the difference in the electrical properties between biological tissue and the foreign object. Advantageously, synthetic aperture radar (SAR) techniques are coupled with statistical filtering algorithms to detect, locate, and optionally also identify a foreign object.
PCT/US2004/035774 2003-10-27 2004-10-26 System and methods for detecting foreign objects after surgery WO2005044085A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51521603P 2003-10-27 2003-10-27
US60/515,216 2003-10-27

Publications (2)

Publication Number Publication Date
WO2005044085A2 WO2005044085A2 (en) 2005-05-19
WO2005044085A3 true WO2005044085A3 (en) 2005-07-14

Family

ID=34572819

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/035774 WO2005044085A2 (en) 2003-10-27 2004-10-26 System and methods for detecting foreign objects after surgery

Country Status (1)

Country Link
WO (1) WO2005044085A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0800882D0 (en) * 2008-01-18 2008-02-27 Uws Ventures Ltd Microwave imaging system
WO2014032984A1 (en) 2012-09-03 2014-03-06 Sony Corporation Hand-held security scanning device
RU2578298C1 (en) * 2014-11-24 2016-03-27 Самсунг Электроникс Ко., Лтд. Ultra-bandwidth device for determining profile of living organism tissue layers and corresponding method
JP6663173B2 (en) * 2015-05-22 2020-03-11 日本信号株式会社 Transmitter / receiver for specifying the shape of an object

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5030956A (en) * 1989-04-25 1991-07-09 Murphy Quentin M Radar tomography
US5589833A (en) * 1995-04-21 1996-12-31 University Corporation For Atmospheric Research Radar acquisition system
US6454711B1 (en) * 1999-04-23 2002-09-24 The Regents Of The University Of California Microwave hemorrhagic stroke detector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5030956A (en) * 1989-04-25 1991-07-09 Murphy Quentin M Radar tomography
US5589833A (en) * 1995-04-21 1996-12-31 University Corporation For Atmospheric Research Radar acquisition system
US6454711B1 (en) * 1999-04-23 2002-09-24 The Regents Of The University Of California Microwave hemorrhagic stroke detector

Also Published As

Publication number Publication date
WO2005044085A2 (en) 2005-05-19

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