WO2008086616B1 - Scanning mechanisms for imaging probe - Google Patents

Scanning mechanisms for imaging probe

Info

Publication number
WO2008086616B1
WO2008086616B1 PCT/CA2008/000092 CA2008000092W WO2008086616B1 WO 2008086616 B1 WO2008086616 B1 WO 2008086616B1 CA 2008000092 W CA2008000092 W CA 2008000092W WO 2008086616 B1 WO2008086616 B1 WO 2008086616B1
Authority
WO
WIPO (PCT)
Prior art keywords
imaging
structural
assembly
stop
probe according
Prior art date
Application number
PCT/CA2008/000092
Other languages
French (fr)
Other versions
WO2008086616A1 (en
Inventor
Brian Courtney
Nigel Robert Munce
Amandeep Singh Thind
Victor Xiao Dong Yang
Francis Stuart Foster
Original Assignee
Sunnybrook Health Sciences Ct
Brian Courtney
Nigel Robert Munce
Amandeep Singh Thind
Victor Xiao Dong Yang
Francis Stuart Foster
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 Sunnybrook Health Sciences Ct, Brian Courtney, Nigel Robert Munce, Amandeep Singh Thind, Victor Xiao Dong Yang, Francis Stuart Foster filed Critical Sunnybrook Health Sciences Ct
Priority to CN2008800092538A priority Critical patent/CN101662980B/en
Priority to NZ579125A priority patent/NZ579125A/en
Priority to EP08706240.2A priority patent/EP2111147B1/en
Priority to KR1020097017047A priority patent/KR101517252B1/en
Priority to AU2008207265A priority patent/AU2008207265B2/en
Priority to CA2675619A priority patent/CA2675619C/en
Priority to JP2009545772A priority patent/JP5224545B2/en
Publication of WO2008086616A1 publication Critical patent/WO2008086616A1/en
Publication of WO2008086616B1 publication Critical patent/WO2008086616B1/en
Priority to HK10108283.7A priority patent/HK1141702A1/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
    • A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
    • A61B5/0035—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for acquisition of images from more than one imaging mode, e.g. combining MRI and optical tomography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00112—Connection or coupling means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00163—Optical arrangements
    • A61B1/00172—Optical arrangements with means for scanning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00163—Optical arrangements
    • A61B1/00174—Optical arrangements characterised by the viewing angles
    • A61B1/00183—Optical arrangements characterised by the viewing angles for variable viewing angles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
    • 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
    • A61B5/0062—Arrangements for scanning
    • 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
    • A61B5/0062—Arrangements for scanning
    • A61B5/0066—Optical coherence imaging
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0093—Detecting, measuring or recording by applying one single type of energy and measuring its conversion into another type of energy
    • A61B5/0095—Detecting, measuring or recording by applying one single type of energy and measuring its conversion into another type of energy by applying light and detecting acoustic waves, i.e. photoacoustic measurements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6852—Catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient ; user input means
    • A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
    • A61B8/445—Details of catheter construction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
    • A61B8/4461—Features of the scanning mechanism, e.g. for moving the transducer within the housing of the probe
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/52—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/5215—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data
    • A61B8/5238—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data for combining image data of patient, e.g. merging several images from different acquisition modes into one image
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/52—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/5292—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves using additional data, e.g. patient information, image labeling, acquisition parameters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2423—Optical details of the distal end
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0233—Special features of optical sensors or probes classified in A61B5/00
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/42—Details of probe positioning or probe attachment to the patient
    • A61B8/4272—Details of probe positioning or probe attachment to the patient involving the acoustic interface between the transducer and the tissue
    • A61B8/4281—Details of probe positioning or probe attachment to the patient involving the acoustic interface between the transducer and the tissue characterised by sound-transmitting media or devices for coupling the transducer to the tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48—Diagnostic techniques
    • A61B8/483—Diagnostic techniques involving the acquisition of a 3D volume of data
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/54—Control of the diagnostic device
    • A61B8/543—Control of the diagnostic device involving acquisition triggered by a physiological signal
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/3604—Rotary joints allowing relative rotational movement between opposing fibre or fibre bundle ends

Abstract

The present invention provides scanning mechanisms for imaging probes using for imaging mammalian tissues and structures using high resolution imaging, including high frequency ultrasound and/or optical coherence tomography. The imaging probes include adjustable rotational drive mechanism for imparting rotational motion to an imaging assembly containing either optical or ultrasound transducers which emit energy into the surrounding area. The imaging assembly includes a scanning mechanism having including a movable member configured to deliver the energy beam along a path out of said elongate hollow shaft at a variable angle with respect to said longitudinal axis to give forward and side viewing capability of the imaging assembly. The movable member is mounted in such a way that the variable angle is a function of the angular velocity of the imaging assembly.

Claims

AMENDED CLAIMS received by the International Bureau on
14 July 2008 (14.07.2008) member against said at least one structural stop when said imaging assembly is not being rotated.
4. The imaging probe according to claim 3 wherein said scanning mechanism includes a second structural stop located such that during rotation of said imaging mechanism said second stop provides a limiting angle the pivotally mounted reflective member achieves.
5. The imaging probe according to claim 1 wherein said movable member is pivotally mounted about a pivot axis for pivotal movement, and end portion of said imaging conduit through which the energy beam emerges is attached to said movable member and positioned to emit said energy beam out of said elongate hollow shaft and to receive said reflected energy signals for transmission back through said imaging conduit.
6. The imaging probe according to claim 5 wherein said scanning mechanism includes at least a first structural stop, and including a restoring mechanism coupled to said pivotally mounted reflective member for providing a restoring force for urging said pivotally mounted reflective member against said at least one structural stop when said imaging assembly is not being rotated.
7. The imaging probe according to claim 5 wherein said scanning mechanism includes a second structural stop located such that during
90 rotation of said imaging mechanism said second stop provides a limiting angle the pivotally mounted reflective member achieves.
8. The imaging probe according to claim 1 wherein said movable member is a reflective bendable component including a structural assembly that is constrained at one or more points along its length with respect to its radiaj distance from the longitudinal axis of the imaging assembly, but is not constrained over a substantial portion of its length, said imaging conduit being positioned to deliver said energy beam to said reflective bendable component, wherein in operation as said imaging assembly rotates, the bendable component will bend as a result of centripetal acceleration, with an amount of bending of the bendable component being determined by the angular velocity of the imaging assembly which in turn determines the angle that the energy beam is emitted from the imaging assembly relative to the longitudinal axis.
9. The imaging probe according to claim 8 wherein said imaging mechanism includes a structural stop mounted therein at a selected location such that during rotation of said imaging mechanism said structural stop provides a stop to constrain how much the reflective bendable component can bend.
10. The imaging probe according to claim 8 or 9 wherein said structural assembly includes any one of a thin, elongate portion of bendable plastic, wire, foil or rod made of fiber optic, said structural assembly having pre-
91
PCT/CA2008/000092 2007-01-19 2008-01-21 Scanning mechanisms for imaging probe WO2008086616A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CN2008800092538A CN101662980B (en) 2007-01-19 2008-01-21 Scanning mechanisms for imaging probe
NZ579125A NZ579125A (en) 2007-01-19 2008-01-21 Scanning mechanisms comprising drive mechanism for imparting rotational motion to imaging conduit
EP08706240.2A EP2111147B1 (en) 2007-01-19 2008-01-21 Scanning mechanisms for imaging probe
KR1020097017047A KR101517252B1 (en) 2007-01-19 2008-01-21 Scanning mechanisms for imaging probe
AU2008207265A AU2008207265B2 (en) 2007-01-19 2008-01-21 Scanning mechanisms for imaging probe
CA2675619A CA2675619C (en) 2007-01-19 2008-01-21 Scanning mechanisms for imaging probe
JP2009545772A JP5224545B2 (en) 2007-01-19 2008-01-21 Scanning mechanism for imaging probe
HK10108283.7A HK1141702A1 (en) 2007-01-19 2010-09-01 Scanning mechanisms for imaging probe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88116907P 2007-01-19 2007-01-19
US60/881,169 2007-01-19

Publications (2)

Publication Number Publication Date
WO2008086616A1 WO2008086616A1 (en) 2008-07-24
WO2008086616B1 true WO2008086616B1 (en) 2008-09-12

Family

ID=39635607

Family Applications (4)

Application Number Title Priority Date Filing Date
PCT/CA2008/000091 WO2008086615A1 (en) 2007-01-19 2008-01-21 Medical imaging probe with rotary encoder
PCT/CA2008/000089 WO2008086613A1 (en) 2007-01-19 2008-01-21 Imaging probe with combined ultrasound and optical means of imaging
PCT/CA2008/000090 WO2008086614A1 (en) 2007-01-19 2008-01-21 Electrostatically driven imaging probe
PCT/CA2008/000092 WO2008086616A1 (en) 2007-01-19 2008-01-21 Scanning mechanisms for imaging probe

Family Applications Before (3)

Application Number Title Priority Date Filing Date
PCT/CA2008/000091 WO2008086615A1 (en) 2007-01-19 2008-01-21 Medical imaging probe with rotary encoder
PCT/CA2008/000089 WO2008086613A1 (en) 2007-01-19 2008-01-21 Imaging probe with combined ultrasound and optical means of imaging
PCT/CA2008/000090 WO2008086614A1 (en) 2007-01-19 2008-01-21 Electrostatically driven imaging probe

Country Status (10)

Country Link
US (7) US8712506B2 (en)
EP (4) EP3120752A1 (en)
JP (11) JP2010516304A (en)
KR (2) KR101529333B1 (en)
CN (7) CN113520315A (en)
AU (1) AU2008207265B2 (en)
CA (5) CA2675619C (en)
HK (5) HK1141702A1 (en)
NZ (2) NZ579126A (en)
WO (4) WO2008086615A1 (en)

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