CA2518315A1 - Imaging system using diffuse infrared light - Google Patents

Imaging system using diffuse infrared light Download PDF

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Publication number
CA2518315A1
CA2518315A1 CA002518315A CA2518315A CA2518315A1 CA 2518315 A1 CA2518315 A1 CA 2518315A1 CA 002518315 A CA002518315 A CA 002518315A CA 2518315 A CA2518315 A CA 2518315A CA 2518315 A1 CA2518315 A1 CA 2518315A1
Authority
CA
Canada
Prior art keywords
infrared light
body tissue
imaging system
diffusing
reflected
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002518315A
Other languages
French (fr)
Other versions
CA2518315C (en
Inventor
Herbert D. Zeman
Gunnar Lovhoiden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Christie Medical Holdings Inc
Original Assignee
Luminetx Corporation
Herbert D. Zeman
Gunnar Lovhoiden
Luminetx Technologies Corporation
Christie Medical Holdings, Inc.
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 Luminetx Corporation, Herbert D. Zeman, Gunnar Lovhoiden, Luminetx Technologies Corporation, Christie Medical Holdings, Inc. filed Critical Luminetx Corporation
Publication of CA2518315A1 publication Critical patent/CA2518315A1/en
Application granted granted Critical
Publication of CA2518315C publication Critical patent/CA2518315C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4887—Locating particular structures in or on the body
    • A61B5/489—Blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/33—Transforming infrared radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B2090/364—Correlation of different images or relation of image positions in respect to the body
    • A61B2090/366—Correlation of different images or relation of image positions in respect to the body using projection of images directly onto the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
    • A61B5/0084—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for introduction into the body, e.g. by catheters
    • A61B5/0086—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for introduction into the body, e.g. by catheters using infrared radiation

Abstract

An imaging system illuminates body tissue with infrared light to enhance visibility of subcutaneous blood vessels, and generates a video image of the body tissue and the subcutaneous blood vessels based on reflected infrared light. The system includes an infrared light source for generating the infrared light and a structure for diffusing the infrared light. The diffusi ng structure includes one or more layers of diffusing material for diffusing th e light. The system further includes a video imaging device for receiving the infrared light reflected from the body tissue and for generating a video ima ge of the body tissue based on the reflected infrared light.
CA002518315A 2003-03-11 2004-02-25 Imaging system using diffuse infrared light Expired - Lifetime CA2518315C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/386,249 2003-03-11
US10/386,249 US7239909B2 (en) 2000-01-19 2003-03-11 Imaging system using diffuse infrared light
PCT/US2004/005669 WO2004080276A2 (en) 2003-03-11 2004-02-25 Imaging system using diffuse infrared light

Publications (2)

Publication Number Publication Date
CA2518315A1 true CA2518315A1 (en) 2004-09-23
CA2518315C CA2518315C (en) 2009-01-06

Family

ID=32987313

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002518315A Expired - Lifetime CA2518315C (en) 2003-03-11 2004-02-25 Imaging system using diffuse infrared light

Country Status (14)

Country Link
US (1) US7239909B2 (en)
EP (1) EP1605823B1 (en)
JP (1) JP4460571B2 (en)
KR (1) KR100734097B1 (en)
CN (1) CN100546544C (en)
AU (1) AU2004220644B2 (en)
BR (1) BRPI0408207A (en)
CA (1) CA2518315C (en)
MX (1) MXPA05009589A (en)
NO (1) NO20054653L (en)
NZ (1) NZ542914A (en)
RU (1) RU2005131419A (en)
WO (1) WO2004080276A2 (en)
ZA (1) ZA200507171B (en)

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Also Published As

Publication number Publication date
US7239909B2 (en) 2007-07-03
CN1758875A (en) 2006-04-12
NZ542914A (en) 2006-11-30
WO2004080276A2 (en) 2004-09-23
EP1605823A4 (en) 2010-01-06
EP1605823A2 (en) 2005-12-21
EP1605823B1 (en) 2016-04-27
MXPA05009589A (en) 2006-05-31
AU2004220644B2 (en) 2007-10-11
KR100734097B1 (en) 2007-06-29
WO2004080276A3 (en) 2005-08-18
CA2518315C (en) 2009-01-06
BRPI0408207A (en) 2006-02-14
KR20050115275A (en) 2005-12-07
NO20054653D0 (en) 2005-10-11
RU2005131419A (en) 2006-04-27
AU2004220644A1 (en) 2004-09-23
JP4460571B2 (en) 2010-05-12
ZA200507171B (en) 2006-05-31
JP2007524427A (en) 2007-08-30
NO20054653L (en) 2005-12-12
CN100546544C (en) 2009-10-07
US20040111030A1 (en) 2004-06-10

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